San Jose weather in August
August in San Jose averages 81°F by day and 59°F at night, with 0.1 inches of precipitation. It is the 1st-warmest and 11th-wettest month of the year here.
- Average high
- 81°F+1° vs July
- Average low
- 59°F0 nights below freezing
- Precipitation
- 0.1 in0 days with 0.1 in. or more
- Snow
- 0.0 in3 days at 90°F+
Is August a good time to visit San Jose?
Yes. August is one of the most comfortable months in San Jose by our rule (highs of 62 to 86°F, lows of 42°F or more and under 4.5 inches of precipitation). The most comfortable months overall are February to November.
Get outside in San Jose in August
August is made for being outside. Try Rosicrucian Park, Happy Hollow Park & Zoo, Guadalupe River Park & Gardens, Plaza de César Chávez. All things to do in San Jose.
On August 15 the sun rises at 6:24 am and sets at 7:59 pm, giving 13h 35m of daylight. Daylight all year.
What to pack for San Jose in August
- Summer clothes, with a light layer for air conditioning
Based on 30-year averages, not a forecast. Check the forecast a few days before you go.
August nearby
| City | Distance | High | Low | Precip. |
|---|---|---|---|---|
| San Jose | 81°F | 59°F | 0.1 in | |
| Santa Clara, CA | 4 mi | 81°F | 59°F | 0.1 in |
| Milpitas, CA | 7 mi | 81°F | 59°F | 0.1 in |
| Sunnyvale, CA | 8 mi | 77°F | 59°F | 0.0 in |
| Mountain View, CA | 11 mi | 77°F | 59°F | 0.0 in |
| Fremont, CA | 17 mi | 78°F | 57°F | 0.0 in |
| Redwood City, CA | 22 mi | 81°F | 57°F | 0.0 in |
Frequently asked questions
What is the weather like in San Jose in August?
In August, San Jose averages a high of 81°F and a low of 59°F, with 0.1 inches of precipitation (NOAA 1991-2020 normals).
Is August a good time to visit San Jose?
Yes. August is one of San Jose's most comfortable months by our rule: highs between 62°F and 86°F, lows of 42°F or more and modest rain.
Does it snow in San Jose in August?
Rarely. The August snowfall normal is under half an inch.
Before and after: San Jose in July and San Jose in September. All twelve months: San Jose weather by month.
NOAA NCEI 1991-2020 climate normals, station San Jose, CA, 2.8 miles from the city center; snowfall from San Jose, CA.