Best Time to Visit San Diego
United States · 30-year monthly climate averages
☀️ When to go
Based on 30 years of climate data, the most comfortable months to visit San Diego are June, July and October, when daytime temperatures are agreeable and rainfall is relatively low.
Climate profile
San Diego sees its warmest weather in August, when daytime highs average around 25°C, and its coolest in December (around 19°C).
Annual precipitation totals roughly 249mm — February is typically the wettest month (~56mm) and August the driest (~0mm).
Rainfall is spread fairly evenly through the year, so no single season is dramatically wetter than the rest.
Year at a glance
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
🔥 Recent heat vs normal
Daily forecast highs vs the 30-year normal — last 37 days
Each bar is one day: orange above normal, blue below.
Month by month
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 19° / 10°C | 50mm | 🌟 Great |
| February | 19° / 11°C | 56mm | 🌟 Great |
| March | 19° / 13°C | 37mm | 🌟 Great |
| April | 20° / 14°C | 17mm | 🌟 Great |
| May | 21° / 16°C | 7mm | 🌟 Great |
| June | 22° / 17°C | 1mm | 🌟 Great |
| July | 24° / 19°C | 2mm | 🌟 Great |
| August | 25° / 20°C | 0mm | 🌟 Great |
| September | 25° / 19°C | 3mm | 🌟 Great |
| October | 24° / 16°C | 13mm | 🌟 Great |
| November | 22° / 13°C | 20mm | 🌟 Great |
| December | 19° / 10°C | 43mm | 🌟 Great |
FAQ
- What is the best time to visit San Diego?
- Based on 30 years of climate data, the most comfortable months to visit San Diego are June, July and October, when daytime temperatures are agreeable and rainfall is relatively low.
- What is the hottest month in San Diego?
- August is typically the hottest month in San Diego, with average daytime highs around 25°C.
- What is the rainiest month in San Diego?
- February is usually the wettest month, with around 56mm of precipitation.