Monthly climate guide
San Francisco weather in July
July in San Francisco is typically warm, with average daytime highs around 22°C (72°F) and night-time lows near 12°C (54°F). The month usually brings about 1 mm of rain (very dry) and is often cloudy. Daytime highs are about the same as June and about the same as August.
What stands out in July
- Comfortable temperatures make it easy to walk between Golden Gate Bridge and Alcatraz Island.
- Just 60 km apart, but San Francisco runs about 9°C cooler than Napa this month.
- Seasonally, July counts as mid-summer in San Francisco.
- Rain is well below San Francisco's usual level (around 98% less).
It's usually the driest month of the year.
Avg high
22°C
72°F
Avg low
12°C
54°F
Rainfall
1 mm
very dry
Humidity
74%
relative
Sky
56%
cloud · often cloudy
San Francisco weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 14°C / 57°F | 7°C / 44°F | 96 mm | 83% | 59% |
| February | 15°C / 59°F | 7°C / 45°F | 90 mm | 80% | 54% |
| March | 16°C / 60°F | 8°C / 47°F | 98 mm | 82% | 61% |
| April | 18°C / 64°F | 9°C / 48°F | 35 mm | 79% | 53% |
| May | 19°C / 66°F | 10°C / 50°F | 15 mm | 77% | 54% |
| June | 22°C / 72°F | 12°C / 53°F | 9 mm | 73% | 45% |
| July | 22°C / 72°F | 12°C / 54°F | 1 mm | 74% | 56% |
| August | 23°C / 74°F | 13°C / 55°F | 1 mm | 75% | 60% |
| September | 24°C / 76°F | 13°C / 56°F | 4 mm | 71% | 46% |
| October | 23°C / 73°F | 12°C / 54°F | 22 mm | 67% | 41% |
| November | 18°C / 64°F | 9°C / 48°F | 59 mm | 75% | 47% |
| December | 14°C / 57°F | 7°C / 44°F | 95 mm | 79% | 53% |
What to pack for July
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
Is July a good time to visit San Francisco?
Our San Francisco guide recommends: September to November, when fog is less frequent and temperatures are at their warmest — summer here can be surprisingly cool and foggy.
Bring layers even in summer — Mark Twain's famous (if apocryphal) line about a cold San Francisco summer is closer to true than visitors expect.
Best time to visit San Francisco →Other United States cities in July
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San Francisco weather in July. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/usa/san-francisco/july
<a href="https://weathercompare.eu/weather/usa/san-francisco/july">San Francisco weather in July</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/usa/san-francisco" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="San Francisco weather in July"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/usa/san-francisco/july">San Francisco weather in July</a> – WeatherCompare</p>
San Francisco in July: quick answers
Is July a good time to visit San Francisco?
July is a reasonable time for San Francisco: highs around 22°C and about 1 mm of rain, though not one of the three best months.
How warm is San Francisco in July?
Average highs are about 22°C (72°F) and average lows about 12°C (54°F), based on 10 years of daily data.
Does it rain a lot in San Francisco in July?
San Francisco typically gets around 1 mm of rain in July — very dry. It's usually the driest month of the year.
When is the best time to visit San Francisco?
September to November, when fog is less frequent and temperatures are at their warmest — summer here can be surprisingly cool and foggy.
Figures are long-term averages for the area around San Francisco (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.