Mission Bay is San Diego’s big waterfront playground. The city calls it the largest aquatic park of its kind in the country. It has 27 miles of shoreline, and 19 of those miles are sandy beach. January is a calm time to visit. Gray whales pass the coast, bike paths are quiet, and beach fires glow after sunset. The Resolution Run also takes place early in the month. Here are five fun things to do in San Diego in January. Weather and seasonal schedules can change what is open, so check details before you go.
1. Go Gray Whale Watching During Migration Season
January is prime time to see whales off San Diego.
How the Migration Works
Each winter, gray whales leave the cold waters near Alaska. They swim south to warm lagoons in Baja California. That is where they give birth and raise their calves. The San Diego Tourism Authority says tens of thousands of whales pass close to shore. The trip is about 5,000 miles each way. It is the longest yearly migration of any known mammal.
Why January Is a Good Month
December through April is the whale season in San Diego. Peak migration usually comes in mid-January. On peak days, counts off San Diego have reached as many as 200 whales.
Local numbers back this up. San Diego Whale Watch reports 234 confirmed gray whale sightings on its tours in the 2025-26 season. The season before, it logged 171.
Other Wildlife You May See
Dolphins, sea lions, and seabirds often appear on trips. Pacific white-sided dolphins visit in winter, usually from December to April. No tour can promise a sighting, so treat every animal as a bonus.
What to Check Before You Book
- Departure point: San Diego Whale Watch leaves from Mission Bay, at 1617 Quivira Road. Other tours sail from downtown San Diego Bay or other harbors. Confirm the dock before you book.
- Trip length: Its cruises last two to three hours. Check in 45 minutes before departure.
- Sea conditions: A trip needs enough passengers to run. If it is cancelled, the company moves you to another date.
- Policies: Ask about refunds and sightings guarantees. This company offers a free return trip if you see no whale or dolphin.
- Price: Adult tickets cost $63 Monday to Thursday and $73 Friday to Sunday, at the time of writing.
- Comfort: Wear non-slip shoes and warm layers. Take motion sickness medicine if you need it.
2. Explore Mission Bay by Kayak or Paddleboard
Paddling lets you see the bay at your own pace. You can glide along quiet shorelines and stop whenever you like. It suits couples, friends, and outdoor fans who want more than a walk on the sand.
Where to Rent
Mission Bay Sportcenter rents kayaks at 1010 Santa Clara Place. That is the north end of Santa Clara Point, near Mission Beach and Pacific Beach. It also rents stand-up paddleboards. These base rates were checked on October 1, 2026. A 10% concession fee applies.
What You Get and What to Know
Paddles and life vests come with the rental. You do not need any experience. The main renter must be 18 or older and bring a photo ID and credit card. Arrive about 30 minutes early. Rental gear cannot enter the ocean, the jetty, the inlet, or marked swimming zones.
Plan for Winter Conditions
- Wear warm layers that dry fast. Splashes are normal.
- Bring sunscreen, sunglasses, a hat, water, and a towel.
- Check wind and weather first. Dock staff make the final call on launches.
- Know that the city posts no lifeguards in Mission Bay from November to spring break.
3. Cycle Along the Scenic Mission Bay Bike Path
A bike ride lets you enjoy the waterfront without getting into the cold water.
About the Route
The San Diego County Bicycle Coalition recommends a route of almost 12 miles. The San Diego Tourism Authority says it runs along most of the bay’s inner shore. It passes all of Mission Bay’s public parks. It also follows part of the San Diego River. Apart from a few short stretches, the route is free of cars. The city says the park has close to 14 miles of bike paths in total.
Ride a Section or Take a Walk
You do not need to ride the whole loop. Pick one stretch and turn around when you are ready. A slow walk works well too. The park has grassy areas, public restrooms, and showers. Most beach parking lots are free.
Good Places to Stop
- Photos: Stop at the beaches for bay views.
- Birdwatching: A nature reserve sits at the north end of the bay, near Crown Point.
- Picnics: Many visitors picnic, fly kites, or play volleyball on the lawns.
Plan Around Daylight and Weather
January days are short, and sunset comes around 5 p.m. It’s best to start early and finish before dark. Don’t forget to check the forecast for wind and rain. Ensure to pack a warm layer and water.
4. Enjoy a Beach Bonfire by the Bay
A bonfire is a classic San Diego evening. It feels great after a day of whale watching or cycling.
Why It Works in January
Evenings by the water get cool. A fire ring gives you a warm place to sit and talk. It is a simple plan that costs very little.
What to Bring
- Blankets, warm jackets, and hats
- S’mores supplies and roasting sticks
- A flashlight
- Water to put out the fire
- A trash bag
Where the Fire Rings Are
Here’s how many rings each spot has.
| Mission Bay spot | Fire rings |
| Fiesta Island | 41 |
| Crown Point Shores | 16 |
| Vacation Isle, Paradise Point | 15 |
| Ski Beach | 1 |
| Ventura Cove | 7 |
| Bonita Cove | 7 |
Arrive Early
Rings are first come, first served. They fill up on nice evenings and weekends. Weeknights are often easier.
Know the Rules
The city’s Mission Bay beach regulations set these limits:
- Fires are allowed from 5 a.m. to midnight.
- Burn only wood, charcoal, or paper. Fuel may not rise more than 12 inches above the ring.
- Put the fire out fully. Use water, not sand.
- Alcohol and glass containers are banned in the park.
- Overnight camping is not allowed. Parking is unlawful from 2 to 4 a.m.
Some city fire rings are summer only. The list marks La Jolla Shores, Mission Beach, and Ocean Beach this way. Mission Bay sites are not marked, but rules can change. Check your chosen site before you go.
5. Start the New Year at the San Diego Resolution Run
This race is a fun way to begin the year. The 2027 event is the 20th annual Resolution Run. It takes place on Saturday, January 9, 2027, at Tecolote Shores in Mission Bay Park. The course winds along the water. The San Diego Tourism Authority lists a 7:15 a.m. start.
| Distance | Start time | Price |
| Half marathon | 7:15 a.m. | $99.99 |
| 10K | 7:15 a.m. | $59.99 |
| 5K | 7:30 a.m. | $49.99 |
The organizer says prices include all fees. The 5K course is new for 2027 and measures about 3.4 miles.
Who It Suits
Every runner gets a shirt, a finisher medal, and chip-timed results. A wellness village opens after the race. Beginners can try the 5K. Strollers are welcome. Pets are not allowed. A gear check is available, so you can leave a bag before the start. Half marathon runners must hold a pace of about 15 minutes per mile. Slower runners are moved up the course and can still finish.
Race Week Checklist
- Registration: Sign up on the San Diego Running Co. race page.
- Packet pickup: Friday, January 8, from noon to 6 p.m. at Road Runner Sports, 5553 Copley Drive. Event-day pickup starts at 6 a.m., but lines are long.
- Getting there: Use the Clairemont Drive exit. East Mission Bay Drive closes in the early morning, roughly 5 to 10 a.m.
- Drop-off: A drop-off zone sits at 1697 East Mission Bay Drive. Carpooling helps with parking.
- Closures: Check the road closure map on the race page.
Make Parasailing Part of Your San Diego Plans
Want to add a little adventure to your San Diego trip? Go Parasailing offers a bird’s-eye view of Mission Bay and its scenic coastline. Although trips pause in January and February, you can plan your parasailing experience for a visit starting in March. Alternatively, book a flight before the year ends in December.
When to Plan Your Flight
Look at March or later. Spring hours run on weekends and holidays, and summer is open seven days a week. Hours can change, so confirm the schedule first. If you visit in December, check the winter schedule. You may fit in a flight before the new year.
What to Expect
- Winch-direct flights: You take off and land on the boat’s flight deck.
- Scenic flight: The 600-foot flight gives 6 to 8 minutes of airtime.
- Photos and video: The optional package costs $49.95.
Flights start at $99 per person plus fees. See official pricing and FAQs for more details.
What Is the Weather Like in San Diego in January?
January in San Diego is mild and pleasant, though cooler and rainier than the summer months
| Measure | Typical January range | Water temperature |
| Daytime high | Mid-60s °F | Roughly 59°F (15°C) |
| Overnight low | Upper 40s °F | Roughly 59°F (15°C) |
| Rain | About 2 inches (5 cm) across 4–6 rainy days | Roughly 59°F (15°C) |
| Sunshine | Around 72% clear or sunny skies | Roughly 59°F (15°C) |
What to Expect
- Cloudy mornings: Coastal clouds often clear by afternoon.
- Cool breezes: Wind off the water feels colder than the air.
- Chilly sun: A bright afternoon can still feel cool near the bay.
- Some rain: Most of San Diego’s yearly rain falls in winter.
What to Pack
- Layers you can add or remove
- A light waterproof jacket
- Comfortable walking shoes
- Sunscreen and sunglasses
Make January Your Mission Bay Moment
January brings a different kind of fun to Mission Bay. Watch gray whales pass the coast, paddle along quiet shores, or enjoy a bike ride by the water. You can also gather around a beach bonfire or start the year with a local race. Check the weather and seasonal schedules before heading out. With a little planning, you can enjoy San Diego’s waterfront at your own pace and make your winter trip memorable.
Frequently Asked Questions
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Is San Diego worth visiting in January?
Yes. January brings mild weather, quieter beaches, and peak gray whale season. You can watch whales, ride the bay path, or join the Resolution Run on January 9. Water plans depend on wind and rain, so keep a backup idea.
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Is it cold in January in San Diego?
Not very cold. Daytime highs are usually in the mid-60s °F, and nights drop to the upper 40s. Wind near the water can feel chillier. Mornings and evenings are the coolest, so pack a warm layer.
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What to wear in San Diego in January?
Dress in layers. Bring long pants, a light waterproof jacket, and comfortable shoes. Add a warm hat for evenings and boat trips. Sunglasses and sunscreen still help on bright days, even when the air feels cool.