Weather: San Francisco — August
Conditions are pleasant for sightseeing, though you might encounter occasional showers.
👍 Climate Overview
August is a good time to visit San Francisco. Warm weather with highs of 25°C—great for outdoor activities. Rainfall is rare, so you can leave the umbrella at home. Temperatures vary significantly between day and night—layering is recommended. Being off-peak, you'll find better deals and fewer crowds. At 16°C, the sea is too cold for most swimmers.
Based on weather comfort, crowds, prices, and activity options
25°C
15°C
0days
13.7h
1mm
12.4h/day
73%
Humid9.9
Very High17 km/h (gusts 39)
16°C ❄️ Cold
Is August a good time to visit San Francisco?
Conditions are pleasant for sightseeing, though you might encounter occasional showers.
Now
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Air Quality
Travel Context
- CrowdsModerate
- Travel Costs Shoulder Rates
Daylight
06:25
20:05
Visiting San Francisco in August: Pros & Cons
Pros
- Comfortable temperatures for sightseeing
- Minimal rainfall — great for outdoor plans
- Abundant sunshine for beach and outdoor fun
- Fewer crowds and better hotel deals
Cons
- Sea too cold for comfortable swimming
- Very high UV — sunscreen and shade essential
Things to Do in August
Events & Festivals
Recommended for This Weather
San Francisco Weather by Month
| Month | Avg High | Avg Low | Rain | Sunshine | Humidity | UV Index | Crowds | Condition |
|---|---|---|---|---|---|---|---|---|
| Jan | 15°C | 7°C | 7d (71mm) | 7.2h | 78% Humid | 3.5 Moderate | | Good |
| Feb | 17°C | 7°C | 6d (59mm) | 8.5h | 72% Humid | 5.2 High | | Good |
| Mar | 17°C | 8°C | 10d (76mm) | 9.7h | 72% Humid | 6.7 High | | Good |
| Apr | 19°C | 9°C | 3d (17mm) | 11.4h | 70% Humid | 9.3 Very High | | Good |
| May | 22°C | 11°C | 2d (11mm) | 12.8h | 68% Humid | 10.8 Extreme | | Good |
| Jun | 23°C | 13°C | 0d (0mm) | 13.4h | 69% Humid | 11.4 Extreme | | Good |
| Jul | 23°C | 14°C | 0d (0mm) | 13.1h | 73% Humid | 11 Extreme | | Good |
| Aug Current | 25°C | 15°C | 0d (1mm) | 12.4h | 73% Humid | 9.9 Very High | | Good |
| Sep | 25°C | 15°C | 0d (3mm) | 11.2h | 73% Humid | 8.1 Very High | | Excellent |
| Oct | 24°C | 12°C | 2d (23mm) | 9.5h | 69% Humid | 6 High | | Excellent |
| Nov | 18°C | 9°C | 6d (44mm) | 8.1h | 73% Humid | 4.1 Moderate | | Good |
| Dec | 14°C | 7°C | 11d (109mm) | 6.5h | 82% Very Humid | 3 Moderate | | Good |
San Francisco
San Francisco: walk the Golden Gate Bridge, tour Alcatraz, ride cable cars up steep streets, and explore a major tech innovation hub.
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What to Pack for August
Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces. Don't forget a wide-brimmed hat and high-SPF sunscreen — the sun is strong.
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