Best Time to Visit San Diego, California
United States · weather by month, temperature and rainfall
The best time to visit San Diego is October to June, when the weather is at its most comfortable for sightseeing and time outdoors. August is the hottest month, with average highs of 32°C (89°F), while January is the coldest, with lows around 10°C (50°F). Rain is heaviest in February, at about 52 mm (2.0 in), and lightest in July, at 4 mm (0.2 in).
San Diego weather by month
Monthly climate table
| Month | High | Low | Rain | Rainy days | Humidity | Sun hrs/day | Rating |
|---|---|---|---|---|---|---|---|
| January | 19°C 66°F | 10°C 50°F | 51 mm | 6 | 64% | 5.4 | Excellent 9.7 |
| February | 19°C 67°F | 10°C 50°F | 52 mm | 7 | 67% | 5.5 | Excellent 9.7 |
| March | 20°C 69°F | 11°C 51°F | 39 mm | 6 | 69% | 5.5 | Excellent 10 |
| April | 22°C 72°F | 12°C 53°F | 15 mm | 3 | 68% | 5.8 | Excellent 10 |
| May | 24°C 75°F | 13°C 55°F | 8 mm | 2 | 69% | 4.2 | Excellent 9.7 |
| June | 27°C 81°F | 15°C 59°F | 14 mm | 1 | 63% | 3.3 | Excellent 9.3 |
| July | 31°C 88°F | 18°C 65°F | 4 mm | 1 | 57% | 4 | Good 7.8 |
| August | 32°C 89°F | 19°C 66°F | 6 mm | 1 | 56% | 5.1 | Good 7.8 |
| September | 30°C 87°F | 19°C 66°F | 6 mm | 1 | 58% | 5.9 | Excellent 8.6 |
| October | 27°C 81°F | 16°C 61°F | 9 mm | 2 | 58% | 6.2 | Excellent 10 |
| November | 23°C 74°F | 13°C 55°F | 25 mm | 3 | 58% | 5.9 | Excellent 10 |
| December | 19°C 66°F | 10°C 50°F | 51 mm | 5 | 64% | 5.1 | Excellent 9.7 |
Frequently asked questions
When is the best time to visit San Diego?
The best time to visit San Diego is October to June, based on comfortable temperatures, low rainfall and plenty of sunshine.
What is the hottest month in San Diego?
August is the hottest month in San Diego, with an average high of 32°C (89°F).
What is the coldest month in San Diego?
January is the coldest month in San Diego, with an average low of 10°C (50°F).
What is the rainiest month in San Diego?
February is the wettest month, with about 52 mm (2.0 in) of rain. July is the driest, with 4 mm (0.2 in).
Nearby destinations
- Tijuana28 km · best October to June
- Mexicali160 km · best November to March
- Los Angeles, California179 km · best February to June and October to December
- Las Vegas, Nevada427 km · best February to April and October to November
- Phoenix, Arizona481 km · best November to March
- San Francisco, California737 km · best May to October
- Ciudad Juarez1013 km · best February to April and October to November
- Cabo San Lucas1304 km · best November to June
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