Best Time to Visit San Diego, California (2026)
The best time to visit San Diego is January through December, when average highs are 65-78°F with minimal rain. Avoid February when weather conditions are the least favorable for visiting.
Month-by-Month Weather Overview
| Month | High | Low | Rain | Snow | Score |
|---|---|---|---|---|---|
| Jan | 66°F | 49°F | 2" | — | 10/10 |
| Feb | 66°F | 50°F | 2.2" | — | 10/10 |
| Mar | 66°F | 52°F | 2" | — | 10/10 |
| Apr | 68°F | 55°F | 0.8" | — | 10/10 |
| May | 69°F | 58°F | 0.2" | — | 10/10 |
| Jun | 72°F | 62°F | 0.1" | — | 10/10 |
| JulBest | 76°F | 66°F | 0" | — | 10/10 |
| Aug | 78°F | 67°F | 0" | — | 10/10 |
| Sep | 77°F | 65°F | 0.2" | — | 10/10 |
| Oct | 75°F | 60°F | 0.6" | — | 10/10 |
| Nov | 70°F | 53°F | 1.1" | — | 10/10 |
| Dec | 65°F | 48°F | 1.6" | — | 10/10 |
Tourism score: 1-10 (higher = better for visiting). Based on temperature comfort, rainfall, and humidity.
When NOT to Visit San Diego
February is the least ideal time to visit San Diego. Conditions are less favorable for tourism, with highs of 66°F and 2.2" of rain.
Seasonal Breakdown
Spring
Spring brings mild weather to San Diego, with highs around 68°F. Expect some rain (3" total) but increasingly pleasant days.
Summer
San Diego has mild summers with highs around 75°F — comfortable for extended outdoor exploration.
Fall
Fall in San Diego stays warm, averaging 74°F highs. The transition is gradual with pleasant weather into November.
Winter
San Diego has mild winters with highs around 66°F. No heavy coats needed — a light jacket will do.
What to Pack for July in San Diego
- ✓Light layers
- ✓Sunglasses
- ✓Comfortable walking shoes
Safety in San Diego
While you're planning, San Diego has a Moderate safety rating based on FBI crime data. See full safety report.
Frequently Asked Questions
What is the best month to visit San Diego?
The best time to visit San Diego is January through December, when highs average 65-78°F with comfortable temperatures and manageable rainfall. July scores highest for tourism at 10/10.
What is the weather like in San Diego in July?
In July, San Diego has average highs of 76°F and lows of 66°F. Expect 0" of rainfall and 72% humidity. Snow is not expected.
Does it snow in San Diego?
No, San Diego, California does not typically get snow. Winters stay mild with lows around 48°F.
How hot does San Diego get?
The hottest month in San Diego is August, with average highs of 78°F and lows of 67°F. Humidity averages 72%. Summers are warm but generally manageable.
What should I pack for San Diego?
For the best time to visit (July): Light layers, Sunglasses, Comfortable walking shoes. Adjust layers based on the season you're visiting.