San Diego, United StatesQuick decision
When to visit San Diego?
🌞 Best time overall
July
🌡️ Optimal temperature
18°C–24°C in July
🌧 Least rain
0% rainy days in July
🌧 Wettest month
January (20%)
📅 Best score
9.1/10
By trip type
Best time by type of trip
Mission & Pacific BeachYear-round — surfing, boardwalk, year-round 20–25°C.
San Diego ZooYear-round — world-famous zoo, 3,700+ animals, 100 acres.
Fish tacos & GaslampYear-round — authentic fish tacos, Gaslamp Quarter nightlife.
Balboa ParkYear-round — 17 museums, Spanish Colonial architecture, gardens.
Monthly climate data
San Diego weather month by month
| Month | Min °C | Max °C | Rainy days (%) | Precip. mm/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ⛅ January | 8°C | 17°C | 20% | 2.4 | 9.9h | 7.2/10 |
| ⛅ February | 9°C | 17°C | 18% | 2.0 | 10.0h | 7.2/10 |
| ⛅ March | 10°C | 17°C | 28% | 2.1 | 11.2h | 7.2/10 |
| 🌤️ April | 13°C | 19°C | 12% | 0.7 | 12.0h | 7.8/10 |
| 🌤️ May | 14°C | 20°C | 10% | 0.4 | 11.7h | 8.0/10 |
| 🌤️ June | 16°C | 22°C | 2% | 0.1 | 12.0h | 8.6/10 |
| 🌤️ July | 18°C | 24°C | 0% | 0.1 | 12.5h | 9.1/10 |
| ☀️ August | 19°C | 25°C | 2% | 0.2 | 12.0h | 9.1/10 |
| 🌤️ September | 18°C | 24°C | 4% | 0.5 | 11.3h | 8.8/10 |
| 🌤️ October | 15°C | 23°C | 7% | 0.4 | 10.8h | 8.5/10 |
| 🌤️ November | 12°C | 21°C | 11% | 1.2 | 9.8h | 7.9/10 |
| 🌤️ December | 9°C | 18°C | 16% | 1.8 | 9.5h | 7.3/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Good time
Average 19°C, 17% rainy days, 11.6h sunshine/day. Score: 7.7/10.
☀️ Summer (Jun–Aug) — Excellent time
Average 24°C, 1% rainy days, 12.2h sunshine/day. Score: 8.9/10.
🍂 Autumn (Sep–Nov) — Good time
Average 23°C, 7% rainy days, 10.6h sunshine/day. Score: 8.4/10.
❄️ Winter (Dec–Feb) — Good time
Average 17°C, 18% rainy days, 9.8h sunshine/day. Score: 7.2/10.
Accommodation
Find a place to stay in San Diego
Check availability during the recommended period
Tip : January, February offer a good weather/price balance — decent score with fewer crowds.
Search on Hotels.comActivities & tours
Activities and tours in San Diego
Guided tours, skip-the-line tickets and local experiences.
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Flights
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Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
July is ideal with 0% rainy days and 24°C. The months of July & August offer comparable conditions.
January is the wettest month with 20% rainy days.
Yes, July is the best month with an average of 24°C.
In winter, the average score is 7.2/10. Acceptable conditions for cultural visits.
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