Best time to visit San Diego, United States
Based on 2020–2024 of daily weather data, the best months to visit San Diego are June, July, August — when temperatures are comfortable, rainfall is low, and sunshine is plentiful.
Months ranked by travel comfort
| Rank | Month | High | Low | Precip | Rainy days | Sun | Score |
|---|---|---|---|---|---|---|---|
| 1 ★ | June | 22.1° | 15.9° | 14.1 mm | 22 | 11.8 h | 99 |
| 2 ★ | July | 24.2° | 18.1° | 24.3 mm | 6 | 12.2 h | 99 |
| 3 ★ | August | 25.5° | 18.9° | 45.2 mm | 12 | 11.5 h | 98 |
| 4 | May | 20.1° | 14.1° | 22.4 mm | 41 | 11 h | 97 |
| 5 | September | 25.5° | 18.1° | 71.5 mm | 24 | 10.5 h | 97 |
| 6 | October | 23.8° | 15° | 36.8 mm | 24 | 9.7 h | 97 |
| 7 | April | 19.1° | 12° | 130.9 mm | 44 | 10.5 h | 93 |
| 8 | November | 20.9° | 10.6° | 111 mm | 26 | 9.4 h | 93 |
| 9 | December | 17.9° | 8.9° | 178.9 mm | 42 | 8.1 h | 83 |
| 10 | February | 17.7° | 8.3° | 266.8 mm | 42 | 9.1 h | 81 |
| 11 | March | 17.2° | 9.8° | 432.5 mm | 77 | 9.9 h | 78 |
| 12 | January | 17.3° | 8.2° | 354.6 mm | 42 | 8.7 h | 77 |
Score (0–100) blends ideal-temperature comfort (50%), low-rainfall (30%), and sunshine (20%). Higher is better for a typical sightseeing trip.
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