Colma Weather in August
Average highs run from 63°F on August 1 to 65°F on August 31, and lows from 55°F to 56°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
- 64°F
- Average low
- 55°F
- Precipitation
- 0.05 in
- Record high
- 99°FAug 14, 2020
- Record low
- 45°FAug 3, 1954
- Chance of a freeze
- 0%
- Daylight
- 14 h 04 min to 13 h 01 min
- Cloud cover
- 59%
- Humidity
- 86%
- Dew point
- 55°F
- Wind
- 8.9 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Aug 1 | 63°F | 55°F | 89°F 1975 | 48°F 1951 | 1% |
| Aug 2 | 63°F | 55°F | 91°F 1946 | 49°F 1945 | 1% |
| Aug 3 | 63°F | 55°F | 91°F 1998 | 45°F 1954 | 1% |
| Aug 4 | 63°F | 55°F | 87°F 1998 | 50°F 1945 | 1% |
| Aug 5 | 63°F | 55°F | 89°F 1964 | 49°F 1950 | 1% |
| Aug 6 | 63°F | 55°F | 93°F 1982 | 46°F 1950 | 1% |
| Aug 7 | 63°F | 55°F | 94°F 1984 | 46°F 1950 | 1% |
| Aug 8 | 63°F | 55°F | 89°F 2002 | 47°F 1946 | 1% |
| Aug 9 | 63°F | 55°F | 95°F 1970 | 48°F 1954 | 2% |
| Aug 10 | 63°F | 55°F | 87°F 2009 | 47°F 1951 | 2% |
| Aug 11 | 63°F | 55°F | 84°F 1959 | 48°F 1946 | 2% |
| Aug 12 | 64°F | 55°F | 89°F 1958 | 47°F 1946 | 2% |
| Aug 13 | 64°F | 55°F | 89°F 1991 | 47°F 1946 | 2% |
| Aug 14 | 64°F | 55°F | 99°F 2020 | 47°F 1946 | 2% |
| Aug 15 | 64°F | 55°F | 94°F 2019 | 46°F 1955 | 2% |
| Aug 16 | 64°F | 55°F | 90°F 2015 | 48°F 1952 | 2% |
| Aug 17 | 64°F | 55°F | 82°F 1988 | 48°F 1945 | 2% |
| Aug 18 | 64°F | 56°F | 85°F 1978 | 48°F 1957 | 2% |
| Aug 19 | 64°F | 56°F | 89°F 1964 | 49°F 1955 | 2% |
| Aug 20 | 64°F | 56°F | 89°F 2023 | 47°F 1955 | 2% |
| Aug 21 | 64°F | 56°F | 85°F 1974 | 48°F 1952 | 2% |
| Aug 22 | 64°F | 56°F | 90°F 1999 | 49°F 1955 | 2% |
| Aug 23 | 64°F | 56°F | 92°F 2010 | 49°F 1953 | 2% |
| Aug 24 | 64°F | 56°F | 99°F 2010 | 49°F 1955 | 2% |
| Aug 25 | 64°F | 56°F | 93°F 1988 | 50°F 1955 | 2% |
| Aug 26 | 64°F | 56°F | 89°F 1993 | 48°F 1945 | 2% |
| Aug 27 | 64°F | 56°F | 94°F 1993 | 46°F 1951 | 2% |
| Aug 28 | 64°F | 56°F | 95°F 2009 | 49°F 1945 | 2% |
| Aug 29 | 64°F | 56°F | 98°F 1968 | 49°F 1955 | 2% |
| Aug 30 | 64°F | 56°F | 91°F 2023 | 45°F 1952 | 2% |
| Aug 31 | 65°F | 56°F | 89°F 2005 | 48°F 1955 | 2% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PDT).
- August 1
- sunrise 6:14 AM, sunset 8:18 PM
- August 31
- sunrise 6:39 AM, sunset 7:40 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00047767 (San Francisco Oceanside), public domain. Records: NOAA GHCN-Daily, station USW00023234, 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.