Nature in San Diego: 90+ Fun Outdoor Activities by Season

Who says San Diego doesn’t have seasons?

From the coastal coves to snow-capped mountain tops, every season provides a wealth of opportunities to get outside and enjoy an abundance of biodiversity.

Here’s our seasonal list of spectacular sites, hikes and outdoor events. This is not an exhaustive list, yet, so if you have any seasonal events in nature that you’d like to suggest, drop them in the comments. And, of course, we welcome any additional details or corrections to the events listed:

Winter

Desert Flower Shows (February – March):

While most of the plants and animals are dormant during the colder months, breathtaking blooms can be seen in the Anza-Borrego Desert State Park; but conditions have to be right, which depends on the timing and intensity of winter rains.

Bald Eagle Viewing at Lake Cuyamaca:

Winter is a good time to spot bald eagles around Lake Cuyamaca. With any luck, you’ll be able to see the adults who have bred nearby and any young who have survived the rigors of their first summer and fall of their lives. Check with the San Diego Audubon Society and State Parks for organized bird watching events.

Cowles Mountain Winter Solstice Hike (December 21 or 22):

An invigorating experience as hikers climb to the summit to witness the sun’s ascent over the horizon, marking the winter solstice amidst the panoramic views of San Diego. Always do your research on level of difficulty and other safety considerations before attempting any hike.

Hawk Watch (January – February):

Attend a hawk watch event organized by the Wildlife Research Institute, at the Ramona Grasslands Preserve to observe the southward migration of wintering raptors, such as hawks and eagles.

Winter Waterfowl Watching (December to February):

Explore wetlands and estuaries to observe wintering waterfowl, including ducks and geese. Check with the San Diego Audubon Society for opportunities.

Christmas Bird Counts (December – January):

Join local Christmas Bird Count events organized by the San Diego Audubon Society. These community-driven efforts help monitor and conserve not only local San Diego birds but also those calling San Diego their home during the winter.

Bay Fishing for Halibut:

Winter months can be productive for targeting halibut in the bays. Make sure you know the fishing regulations.

Deep-Sea Fishing for Rockfish:

Some deep-sea fishing opportunities continue in the winter, particularly for rockfish. Check on those fishing regulations.

San Diego Whale Watching (December – April):

Winter is the peak season for the annual migration of gray whales along the California coast. Gray whales can often be spotted from the shores of San Diego as they travel to and from their breeding grounds in Baja California. Many local organizations offer whale watching adventures.

Snow-Capped Mountains:

In the winter, the nearby mountains, including the Laguna and Cuyamaca Mountains, can receive snowfall. This creates a picturesque backdrop and provides opportunities for snow play at higher elevations.

The Geminids Meteor Shower (Mid-December):

The Geminid meteor shower is another major annual event, peaking in mid-December. It is known for producing a large number of meteors, and the timing can make it suitable for stargazing in San Diego, especially if the weather is clear. International Dark Sky Communities, like Julian and Borrego Springs, are wonderful places to see these celestial events without light pollution.

Swainson’s Hawk Migration (February – April):

The Swainson’s Hawk Migration is a spectacular natural phenomenon where thousands of Swainson’s hawks gather to feed and spend a night in Borrego Springs on their way north. In early to mid-February the first Swainson’s hawks arrive in the Borrego Valley. As the season progresses the hawks arrive from Colombia, and finally in April, from Argentina. The journey from Argentina is over 6,000 miles. The highest period of migration is mid-late March.

San Diego Bird Festival (February):

This annual event, organized by the San Diego Audubon Society, often features presentations, workshops, and field trips focused on spring bird activities.

Winter Succulent and Cactus Shows:

Check for winter-themed succulent and cactus shows hosted by local botanical gardens, nurseries and organizations, such as San Diego Succulent & Cactus Society.

Botanic Wonderland:

A festive holiday event at the San Diego Botanic Garden, transforming the gardens into a magical wonderland with twinkling lights, festive displays, and seasonal activities for visitors of all ages.

Three Sisters Falls (Late winter – early Spring, after rains):

This trail offers a rewarding waterfall, but is known for accidents and evacuations. As with all hikes, always do your research on level of difficulty and other safety considerations.

Cedar Creek Falls Trail (Late winter – early Spring, after rains):

It’s ideal to visit when the weather is mild, the landscape is green and water is running from the melting, mountain snow. A permit is required for this hike. Always do your research on level of difficulty and other safety considerations before attempting any hike.

Spring

Cherry Blossom Festival at Japanese Friendship Garden (March):

Enjoy the beauty of cherry blossoms at the annual festival held at the Japanese Friendship Garden in Balboa Park.

Tern-Watching Excursions (Spring/Summer):

Join guided tours or excursions to observe elegant terns during their nesting season along the coast.

Bay Fishing for Spotted Bay Bass:

Spring is a good time to target spotted bay bass in the bays and estuaries. Be aware of relevant fishing regulations.

Nearshore Ocean Fishing:

Species like halibut and calico bass become more active nearshore during the spring months. Check on those fishing regulations.

Iron Mountain Trail:

Witness wildflowers in bloom and enjoy panoramic views from the summit. Always do your research on level of difficulty and other safety considerations before attempting any hike.

Torrey Pines State Natural Reserve:

Explore coastal trails amidst blooming flowers and enjoy ocean views. Look for nesting Peregrine Falcons along this portion of the coast. Always do your research on level of difficulty and other safety considerations before attempting any hike.

Blooming Trees and Gardens:

Spring brings blooming trees and gardens to life in San Diego. Cherry blossoms, jacarandas, and various other flowering trees add splashes of color to neighborhoods and parks.

Local Butterfly Movement:

Locally, non-migratory butterflies such as Swallowtails, Sarah’s Orange Tips and Morning Cloaks take flight and add another splash of color to the overall biodiversity of the region.

Butterfly Gardens & Lepidopterariums:

Visit the Water Conservation Garden, the Butterfly Garden at Balboa Park and the Butterfly Jungle Safari at the Wild Animal Park or Butterfly Farms in Encinitas to observe and learn about these colorful insects.

Birth of Marine Life:

Spring is the time when marine life becomes more active along the coast. This includes the birth of seal and sea lion pups on beaches and increased activity among marine mammals and fish. Check out La Jolla Cove and the tide pools at Cabrillo National Monument on Point Loma. You have the best chance of seeing live births of seals and sea lions on the sand in La Jolla between February 4 and March 4, but bring your binoculars, because about 150 yards of coastline has been closed until 2030 to protect these wild animals from selfie-takers.

Festivals and Events:

San Diego hosts a variety of spring festivals and events, celebrating everything from flowers to cultural diversity.

Coronado Flower Show (April):

A vibrant horticultural extravaganza featuring stunning floral displays and garden exhibits, showcasing the beauty of diverse plant species and inspiring gardening enthusiasts.

Renewal of Vegetation:

The arrival of spring brings new growth and renewal to the region’s vegetation. Greenery returns to hillsides, and plants that went dormant during the winter begin to thrive again after the winter rains, which are typical of this Mediterranean climate.

The Lyrids Meteor Shower (April):

The Lyrid meteor shower typically peaks in late April. While it is not as consistent as the Perseids or Geminids, it can still offer a decent display of meteors. International Dark Sky Communities, like Julian and Borrego Springs, are wonderful places to see these celestial events without light pollution.

Bug Fair at the San Diego Natural History Museum (April/May):

The Bug Fair is an annual event at the San Diego Natural History Museum featuring live insect displays, educational presentations, and activities for all ages.

Ladybug Day at the San Diego Botanic Garden (April/May):

Ladybug Day is a family-friendly event where participants release ladybugs into the garden to help control pests naturally.

Spring Butterfly and Hummingbird Walks:

Attend guided walks at locations like San Elijo Lagoon or local botanical gardens to observe butterflies and hummingbirds.

Cabrillo National Monument Tidepool Talks:

Attend tidepool talks during spring tides at Cabrillo National Monument to observe marine life in the tide pools.

Baby Animal Season at San Diego Zoo and Safari Park:

Visit the San Diego Zoo and Safari Park during the spring to see baby animals and their families.

Earth Day Celebrations (April):

Participate in Earth Day events and activities organized by local environmental groups, which may include nature walks and clean-up projects.

Bird Walks at San Dieguito River Park:

Enjoy early, birding walks followed by breakfast at San Dieguito River Park, known for its diverse birdlife.

Gray Whale Watching (Mid-December – April):

After nurturing their young in the warm Baja waters, gray whales migrate north again in spring, covering the longest known distance for any mammal on an annual basis. San Diego, with 70 miles of coastline along their migration path, offers an ideal vantage point for witnessing this extraordinary spectacle

Grunion Run (Peaks late March – early June):

A captivating natural phenomenon where silvery grunion fish come ashore during high tide to spawn along the sandy beaches of Southern California.

The Inez Grant Parker Memorial Rose Garden (Peaks April – May):

The Inez Grant Parker Memorial Rose Garden in Balboa Park features over 1,600 roses. It’s a peaceful spot dedicated to Inez Grant Parker, offering a variety of beautiful roses. Though it peaks April – May, it can be enjoyed from March – December.

Summer

Sea Lions and Harbor Seals:

La Jolla Cove and Children’s Pool bustle with activity as sea lions and harbor seals give birth to pups. Observing these marine mammals is a popular summer activity.

Summer Pelagic Birding Trips (late Spring – late Summer):

Explore the open ocean on specialized boat trips to observe pelagic bird species, including shearwaters, terns, and more.

Offshore Sportfishing:

Summer is prime time for offshore sportfishing for species such as yellowfin tuna, dorado, and yellowtail. Remember to check fishing regulations.

Pier and Shore Fishing:

The warmer waters attract a variety of species closer to shore, making pier and shore fishing productive for surfperch, croaker, and other species. Check those fishing regulations.

Pacific Crest Trail (Section A):

Higher elevations along the PCT may provide cooler temperatures during the summer. Always do your research on level of difficulty and other safety considerations before attempting any hike.

Annie’s Canyon Trail:

Located in San Elijo Lagoon, this short but scenic trail, when explored in the summer offers a warm, but mild coastal climate, views of the San Elijo Lagoon, a unique slot canyon feature, the visual appeal of blooming plants lining the trail, and an opportunity to meet other hikers. Great for families, but always do your research on level of difficulty and other safety considerations before attempting any hike.

Marine Life and Coastal Activities:

Summer brings warmer ocean temperatures, attracting a wealth of marine life. It’s an ideal time for activities such as whale watching, dolphin sightings, and exploring tide pools.

Summer Wildflowers:

In certain areas, such as the higher elevations of the mountains and inland regions, summer wildflowers bloom, adding bursts of color to the landscape.

Evening Bioluminescence:

During warm summer nights, bioluminescent plankton may light up the waters along some of San Diego’s beaches, including La Jolla Shores, Encinitas, Del Mar, Point Loma, Sunset Cliffs, Oceanside, Tamarack, Carlsbad and Blacks beaches, creating a magical and unique natural spectacle.

Mild Evenings for Outdoor Activities:

Summer evenings in San Diego are often mild and comfortable, providing perfect conditions for outdoor concerts, night hikes, and other evening activities.

Kelp Beds and Snorkeling:

The summer months offer excellent visibility for exploring the Kelp Beds just offshore at the northern end of Point Loma. Snorkeling and diving enthusiasts can enjoy the vibrant marine life within these underwater ecosystems.

Surf-perch Fishing:

Summer is a good time for surf-perch fishing along the beaches, providing anglers with opportunities to catch these coastal fish. Check those fishing regulations.

Monarch Butterfly Migrations:

Some areas in San Diego may witness the migration of Monarch butterflies during the summer, particularly in places with suitable habitats for these beautiful insects.

Beach Exploration:

Spend a day at the beach exploring tide pools, collecting seashells, and learning about coastal ecosystems.

Summer Night Hikes:

Mild temperatures make this a comfortable seasonal activity, offering a different perspective on the natural beauty of the region. Summer night hikes offer a perfect blend of adventure and tranquility. Always research hikes before undertaking, so you know the difficulty and understand which trails are open late. Also, make sure you have proper night hiking equipment and are either educated/experienced at night hiking or going with somebody who is.

Junior Rangers Programs:

Participate in Junior Rangers programs offered by State Parks like Torrey Pines State Natural Reserve or Silver Strand State Beach.

Sea Life Aquarium:

Visit the Birch Aquarium at Scripps to learn about marine life through interactive exhibits and educational programs.

Mission Dam Family Picnics:

Pack a picnic and enjoy a family meal in designated areas around the dam at Mission Trails Regional Park. Summer evenings can be a great time for a relaxed outdoor dinner.

Insect Festival at the San Diego Botanic Garden (July):

The Insect Festival offers a chance to get up close and personal with insects. The event includes insect displays, crafts, and educational activities.

Butterfly Release Events:

Some gardens and nature centers host butterfly release events during the summer, allowing participants to release newly emerged butterflies into the wild.

Sunset Kayak Tours in La Jolla:

Experience a guided sunset kayak tour in La Jolla to witness marine life, including seals and sea lions, in the evening light. Kayak trips to the marine caves are also available during the day.

San Diego Zoo Safari Park Summer Camps:

Enroll kids in summer camps at the San Diego Zoo Safari Park, where they can learn about and interact with animals.

Sculpture in the Garden at San Diego Botanic Garden:

Explore sculpture exhibits integrated with the natural surroundings at the San Diego Botanic Garden during the summer.

Summer Orchid Show at Balboa Park (Late July):

Attend summer orchid shows and exhibits, often held at locations like Balboa Park, showcasing a variety of orchid species.

Guided Wildflower Walks in Laguna Mountains:

Join guided walks in the Laguna Mountains to observe and learn about the diverse wildlife and wildflowers that bloom during the summer.

Summer Nights, San Diego Botanical Gardens (July – August):

Attend twilight concerts and events in the botanical gardens, offering a unique blend of music, culture and nature in the summer evenings.

Summer Nature Camps for Kids:

Enroll children in summer nature camps, offered by local parks and nature centers, where they can explore and learn about the environment.

Guided Night Walks at Los Peñasquitos Canyon Preserve:

Join guided night walks at Los Peñasquitos Canyon Preserve to explore the natural world after dark.

Dragonfly and Damselfly Watching:

Explore wetland areas or ponds to observe and learn about the variety of dragonflies and damselflies present during the summer.

La Jolla Leopard Sharks (June – September):

La Jolla Shores is known as a mating and pupping ground for leopard sharks, and during the warmer months, particularly in late spring and early summer, you can observe large numbers of leopard sharks in the shallow, sandy-bottomed areas of the La Jolla coastline.

Blue Whale Watching (Mid-June – September):

San Diego hosts the world’s largest group of blue whales, numbering 2,000 to 3,000, feeding off the California coast during the summer. Due to their offshore location, boat trips are recommended for optimal viewing.

The Perseids Meteor Shower (August):

The Perseid meteor shower is one of the most popular and reliable meteor showers. It usually peaks around mid-August. During this time, the skies are often clear in San Diego, and the Perseids are known for producing a high number of bright meteors. International Dark Sky Communities, like Julian and Borrego Springs, are wonderful places to see these celestial events without light pollution.

Fall

Monarch Butterfly Migration (Mid-October – early February):

Some areas in San Diego may witness the migration of monarch butterflies during the fall as they move south to overwintering sites in Mexico.

Fall Migration Bird Walks:

Participate in organized bird walks in parks and preserves to observe the southward migration of various bird species.

Bluefin Tuna Season:

Fall marks the peak of the bluefin tuna season, attracting anglers to offshore waters. Check those fishing regulations.

Rockfish and Lingcod Fishing:

As water temperatures cool, rockfish and lingcod become more active, making fall a good time for deep-sea fishing. Check those fishing regulations.

Stonewall Peak Trail:

Located near Julian, this summit has expansive, panoramic views of Cuyamaca Rancho State Park. Always do your research on level of difficulty and other safety considerations before attempting any hike.

Los Penasquitos Canyon Trail:

Fall brings a change in colors, and the waterfall along this trail can be more impressive after rainfall. Always do your research on level of difficulty and other safety considerations before attempting any hike.

Cuyamaca Peak Loop:

Experience the fall colors in the Cuyamaca Mountains on this moderately challenging trail. Always do your research on level of difficulty and other safety considerations before attempting any hike.

Fall Colors in the Mountains:

The higher elevations of San Diego’s mountains, such as Palomar Mountain and the Cuyamaca and Laguna Mountains, undergo a subtle but beautiful change in fall foliage, showcasing hues of red, orange, and yellow.

Bird Watching at Wetlands:

Fall brings an increase in bird activity at wetlands and estuaries, with migratory waterfowl and shorebirds passing through or wintering in the region. Locations like the San Elijo Lagoon and other coastal estuaries are popular for bird watching.

Cooler Temperatures for Outdoor Activities:

Fall brings cooler and more comfortable temperatures, making it an ideal time for outdoor activities such as hiking, biking, and picnicking.

Picking Apples in Julian (Late August – mid-October):

Located in the mountains, the historic gold-mining town of Julian is known for its apple orchards. Fall is the apple-picking season, and visitors can enjoy the autumnal atmosphere.

Less Crowded Beaches:

As the summer tourist season winds down, beaches become less crowded, providing a more tranquil environment for those seeking coastal relaxation.

Pumpkin Patches and Corn Mazes:

Many farms and rural areas around San Diego host pumpkin patches and corn mazes during the fall, creating a festive and family-friendly atmosphere.

Glider Rides at Torrey Pines Gliderport:

Fall offers clear skies and gentle winds, making it a great time for glider rides at Torrey Pines Gliderport with breathtaking views of the coastline.

Owl Prowls at Los Peñasquitos Canyon Preserve (September):

Bring your flashlight and participate in owl prowls organized by nature centers or parks to listen for and observe owls during the fall.

Harvest Festivals at Wineries:

Attend harvest festivals at local wineries, often featuring grape stomping, wine tastings, and live music. Ramona, Warner Springs and Julian are popular venues for this activity.

Botanical Garden Workshops on Fall Planting:

Attend workshops at botanical gardens that focus on fall planting and maintaining gardens during the autumn season.