Santa Clara County Weather in August
Average highs run from 80°F on August 1 to 77°F on August 31, and lows from 66°F to 63°F. Normal precipitation for the month is 0.05 in over about 1 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
- 79°F
- Average low
- 65°F
- Precipitation
- 0.05 in
- Record high
- 105°FAug 1, 1993
- Record low
- 39°FAug 26, 1893
- Chance of a freeze
- 0%
- Days of 90°F or more
- 1.1
- Daylight
- 14 h 02 min to 13 h 00 min
- Cloud cover
- 14%
- Humidity
- 47%
- Dew point
- 46°F
- Wind
- 8.5 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 | 80°F | 66°F | 105°F 1993 | 44°F 1895 | 1% | 0% |
| Aug 2 | 79°F | 66°F | 102°F 1946 | 46°F 1919 | 1% | 0% |
| Aug 3 | 79°F | 66°F | 103°F 1998 | 46°F 1893 | 1% | 0% |
| Aug 4 | 79°F | 66°F | 103°F 1998 | 46°F 1915 | 1% | 0% |
| Aug 5 | 79°F | 66°F | 103°F 1998 | 45°F 1909 | 1% | 0% |
| Aug 6 | 79°F | 66°F | 102°F 1913 | 46°F 1894 | 1% | 0% |
| Aug 7 | 79°F | 66°F | 98°F 1983 | 42°F 1894 | 1% | 0% |
| Aug 8 | 79°F | 65°F | 98°F 1990 | 44°F 1893 | 1% | 0% |
| Aug 9 | 79°F | 65°F | 99°F 1970 | 46°F 1893 | 1% | 0% |
| Aug 10 | 79°F | 65°F | 100°F 2002 | 46°F 1893 | 1% | 0% |
| Aug 11 | 79°F | 65°F | 100°F 1937 | 47°F 1907 | 1% | 0% |
| Aug 12 | 79°F | 65°F | 100°F 1996 | 44°F 1919 | 2% | 0% |
| Aug 13 | 79°F | 65°F | 100°F 1996 | 44°F 1894 | 2% | 0% |
| Aug 14 | 79°F | 65°F | 96°F 1906 | 42°F 1893 | 2% | 0% |
| Aug 15 | 79°F | 65°F | 96°F 1950 | 43°F 1911 | 2% | 0% |
| Aug 16 | 79°F | 65°F | 93°F 1933 | 42°F 1911 | 2% | 0% |
| Aug 17 | 79°F | 65°F | 99°F 1939 | 44°F 1893 | 2% | 0% |
| Aug 18 | 78°F | 64°F | 97°F 1934 | 44°F 1916 | 2% | 0% |
| Aug 19 | 78°F | 64°F | 98°F 1950 | 43°F 1893 | 2% | 0% |
| Aug 20 | 78°F | 64°F | 98°F 1964 | 42°F 1893 | 2% | 0% |
| Aug 21 | 78°F | 64°F | 92°F 1969 | 44°F 1910 | 2% | 0% |
| Aug 22 | 78°F | 64°F | 98°F 1999 | 43°F 1893 | 2% | 0% |
| Aug 23 | 78°F | 64°F | 98°F 1931 | 43°F 1909 | 2% | 0% |
| Aug 24 | 78°F | 64°F | 99°F 1931 | 44°F 1893 | 2% | 0% |
| Aug 25 | 78°F | 64°F | 97°F 1923 | 43°F 1908 | 3% | 0% |
| Aug 26 | 78°F | 64°F | 98°F 1894 | 39°F 1893 | 3% | 0% |
| Aug 27 | 78°F | 64°F | 99°F 1993 | 43°F 1896 | 3% | 0% |
| Aug 28 | 78°F | 63°F | 97°F 1915 | 45°F 1896 | 3% | 0% |
| Aug 29 | 78°F | 63°F | 99°F 1968 | 44°F 1895 | 3% | 0% |
| Aug 30 | 78°F | 63°F | 98°F 1968 | 43°F 1895 | 3% | 0% |
| Aug 31 | 77°F | 63°F | 95°F 1943 | 46°F 1895 | 3% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- August 1
- sunrise 6:12 AM, sunset 8:14 PM
- August 31
- sunrise 6:37 AM, sunset 7:37 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00045933 (Mt Hamilton), public domain. Records: NOAA GHCN-Daily, station USC00047821, 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.