San Jose Weather in August
Average highs run from 84°F on August 1 to 82°F on August 31, and lows from 64°F to 59°F. Normal precipitation for the month is 3.57 in over about 8 wet days.
August day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
August at a glance
- Average high
- 84°F
- Average low
- 62°F
- Precipitation
- 3.57 in
- Record high
- 106°FAug 9, 1934
- Record low
- 36°FAug 31, 1915
- Chance of a freeze
- 0%
- Days of 90°F or more
- 6.7
- Daylight
- 14 h 17 min to 13 h 07 min
- Cloud cover
- 49%
- Humidity
- 72%
- Dew point
- 63°F
- Wind
- 7.6 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Aug 1 | 84°F | 64°F | 100°F 1935 | 45°F 1918 | 27% | 0% |
| Aug 2 | 84°F | 64°F | 101°F 1964 | 47°F 1920 | 27% | 0% |
| Aug 3 | 84°F | 64°F | 103°F 1930 | 43°F 1912 | 27% | 0% |
| Aug 4 | 84°F | 64°F | 102°F 1918 | 40°F 1912 | 27% | 0% |
| Aug 5 | 84°F | 64°F | 105°F 1918 | 47°F 1994 | 27% | 0% |
| Aug 6 | 84°F | 64°F | 102°F 1935 | 46°F 1990 | 27% | 0% |
| Aug 7 | 84°F | 64°F | 99°F 1918 | 47°F 1992 | 26% | 0% |
| Aug 8 | 84°F | 63°F | 102°F 1934 | 48°F 1921 | 26% | 0% |
| Aug 9 | 84°F | 63°F | 106°F 1934 | 44°F 1922 | 26% | 0% |
| Aug 10 | 84°F | 63°F | 99°F 1934 | 48°F 1922 | 26% | 0% |
| Aug 11 | 84°F | 63°F | 100°F 1935 | 46°F 1930 | 25% | 0% |
| Aug 12 | 84°F | 63°F | 99°F 1918 | 46°F 2012 | 25% | 0% |
| Aug 13 | 84°F | 63°F | 104°F 1936 | 47°F 1931 | 25% | 0% |
| Aug 14 | 84°F | 63°F | 96°F 1922 | 43°F 1924 | 25% | 0% |
| Aug 15 | 84°F | 63°F | 100°F 1988 | 45°F 1963 | 25% | 0% |
| Aug 16 | 84°F | 62°F | 102°F 1988 | 44°F 1929 | 25% | 0% |
| Aug 17 | 84°F | 62°F | 101°F 1988 | 46°F 1929 | 24% | 0% |
| Aug 18 | 84°F | 62°F | 105°F 1936 | 43°F 1963 | 24% | 0% |
| Aug 19 | 83°F | 62°F | 102°F 1983 | 48°F 1929 | 24% | 0% |
| Aug 20 | 83°F | 62°F | 102°F 1983 | 42°F 1950 | 24% | 0% |
| Aug 21 | 83°F | 62°F | 104°F 1983 | 43°F 1950 | 24% | 0% |
| Aug 22 | 83°F | 61°F | 103°F 1936 | 46°F 1923 | 24% | 0% |
| Aug 23 | 83°F | 61°F | 100°F 1936 | 43°F 1923 | 24% | 0% |
| Aug 24 | 83°F | 61°F | 101°F 1936 | 41°F 1920 | 24% | 0% |
| Aug 25 | 83°F | 61°F | 99°F 1936 | 42°F 1917 | 23% | 0% |
| Aug 26 | 83°F | 61°F | 101°F 1936 | 37°F 1910 | 23% | 0% |
| Aug 27 | 83°F | 60°F | 100°F 2003 | 39°F 1910 | 23% | 0% |
| Aug 28 | 83°F | 60°F | 98°F 1953 | 40°F 1916 | 23% | 0% |
| Aug 29 | 83°F | 60°F | 99°F 1953 | 39°F 1986 | 23% | 0% |
| Aug 30 | 83°F | 59°F | 98°F 1951 | 44°F 1917 | 23% | 0% |
| Aug 31 | 82°F | 59°F | 101°F 1953 | 36°F 1915 | 23% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- August 1
- sunrise 5:56 AM, sunset 8:13 PM
- August 31
- sunrise 6:25 AM, sunset 7:32 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00115413 (Mason City 4SE), public domain. Records: NOAA GHCN-Daily, station USC00115079, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.