San Bruno Weather in August
August in San Bruno typically sees daytime highs of 22°C (72°F) and nighttime lows of 14°C (57°F). Minimal rainfall is typical for this month.
Rainfall in San Bruno in August
Typically, you can expect about 2 days of rain this month, with 1 mm (0.04 in) on average. If rain does fall, it tends to be very light and barely worth getting out an umbrella for.
Temperature in San Bruno in August
August is one of the better months to visit San Bruno. Expect 22°C (72°F) during the day and 14°C (57°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 14°C (57°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in San Bruno in August
Expect a lot of sunshine this month, with about 288 hours of sun. These sunny conditions add to the overall experience.
Wind Speed in San Bruno in August
Wind speeds average 6 m/s (12 knots) during August. At this speed, expect strong winds that make large branches move and create some resistance when walking. Since this is an average, some days have fresh winds while others have strong breezes that can make umbrellas tricky to control.
Average water temperature in August
The water temperature is 14°C (57°F) — chilly, but perfectly fine for a swim if you're not too sensitive to cold water. A short wetsuit can make longer sessions more comfortable.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our San Bruno's climate page.
San Bruno Temperature in August
Min Temperature
14°C (57°F)
Max Temperature
22°C (72°F)
Water Temperature
14°C (57°F) *
Chance of Rain
6%
Precipitation
1 mm (0.04 in)
Rainy days
2 days
Humidity
75% *
Windspeed
6 m/s (12 knots) *
Sunshine
288 hours *
Percentage Sunshine
68% *
Best Places in the United States of America in August
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in August →
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What to Wear in San Bruno in August
Pleasant temperatures in August mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. With minimal rainfall expected, you can leave the rain gear at home. With water temperatures around 14°C (57°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in San Bruno in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our San Bruno's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full San Bruno climate overview or explore weather in the United States of America.
