San Francisco weather in July
July in San Francisco: nice, dry, with clean air — one of the best months to visit.
#1 of 12 months in San Francisco · #5 of 604 destinations to visit in July · comfort 96/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
San Francisco climate normals — July
| Daytime high | 22°C / 71°F | 😎 nice |
|---|---|---|
| Nighttime low | 13°C / 55°F | |
| Feels like (high) | 22°C / 72°F | |
| Rainfall | 0 mm / 0 in | ☀️ dry |
| Rainy days | 0 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 12°C / 53°F | |
| Sunshine | 13.2 h/day | |
| Daylight | 14.5 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 37 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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San Francisco in July — FAQ
- Is July a good time to visit San Francisco?
- July in San Francisco: nice, dry, with clean air — one of the best months to visit. It ranks #1 of 12 months for San Francisco on SeasonMap's comfort score (96/100).
- What is the weather like in San Francisco in July?
- In July, San Francisco averages a daily high of 21.6°C and a low of 12.6°C, with about 0.1 mm of rain over roughly 0 rainy days.
- What is the air quality in San Francisco in July?
- San Francisco has a mean US Air Quality Index of about 37 in July.