San Mateo County Weather in June
Average highs run from 63°F on June 1 to 65°F on June 30, and lows from 49°F to 51°F. Normal precipitation for the month is 0.36 in over about 5 wet days.
June day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
June at a glance
- Average high
- 64°F
- Average low
- 50°F
- Precipitation
- 0.36 in
- Record high
- 109°FJun 15, 1961
- Record low
- 37°FJun 6, 1945
- Chance of a freeze
- 0%
- Daylight
- 14 h 35 min to 14 h 42 min
- Cloud cover
- 48%
- Humidity
- 85%
- Dew point
- 52°F
- Wind
- 10.7 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 |
|---|---|---|---|---|---|
| Jun 1 | 63°F | 49°F | 103°F 1960 | 41°F 1955 | 20% |
| Jun 2 | 63°F | 49°F | 108°F 1960 | 41°F 1971 | 20% |
| Jun 3 | 63°F | 49°F | 105°F 1960 | 42°F 1934 | 20% |
| Jun 4 | 63°F | 49°F | 100°F 1981 | 41°F 1962 | 20% |
| Jun 5 | 63°F | 49°F | 97°F 1972 | 42°F 1932 | 19% |
| Jun 6 | 63°F | 50°F | 97°F 1978 | 37°F 1945 | 19% |
| Jun 7 | 63°F | 50°F | 99°F 1973 | 41°F 1979 | 19% |
| Jun 8 | 64°F | 50°F | 103°F 1973 | 42°F 1950 | 19% |
| Jun 9 | 64°F | 50°F | 101°F 1973 | 42°F 1979 | 18% |
| Jun 10 | 64°F | 50°F | 101°F 1994 | 43°F 1972 | 18% |
| Jun 11 | 64°F | 50°F | 102°F 2019 | 44°F 1956 | 18% |
| Jun 12 | 64°F | 50°F | 94°F 1945 | 41°F 1968 | 18% |
| Jun 13 | 64°F | 50°F | 104°F 1966 | 42°F 1968 | 18% |
| Jun 14 | 64°F | 50°F | 108°F 1961 | 45°F 1959 | 17% |
| Jun 15 | 64°F | 50°F | 109°F 1961 | 44°F 1935 | 17% |
| Jun 16 | 64°F | 50°F | 101°F 1943 | 44°F 1933 | 17% |
| Jun 17 | 64°F | 50°F | 103°F 2021 | 44°F 1932 | 17% |
| Jun 18 | 64°F | 50°F | 102°F 1945 | 40°F 1975 | 17% |
| Jun 19 | 64°F | 50°F | 103°F 1981 | 42°F 1933 | 17% |
| Jun 20 | 64°F | 50°F | 103°F 1973 | 43°F 1933 | 17% |
| Jun 21 | 64°F | 50°F | 104°F 1981 | 42°F 1933 | 17% |
| Jun 22 | 64°F | 50°F | 100°F 1981 | 43°F 1933 | 17% |
| Jun 23 | 64°F | 50°F | 101°F 1976 | 43°F 1933 | 18% |
| Jun 24 | 64°F | 50°F | 104°F 1976 | 45°F 1934 | 18% |
| Jun 25 | 64°F | 50°F | 102°F 1976 | 39°F 1975 | 18% |
| Jun 26 | 64°F | 51°F | 103°F 1973 | 43°F 1950 | 18% |
| Jun 27 | 65°F | 51°F | 104°F 1976 | 45°F 1964 | 18% |
| Jun 28 | 65°F | 51°F | 100°F 1976 | 45°F 1969 | 18% |
| Jun 29 | 65°F | 51°F | 103°F 1934 | 42°F 1949 | 19% |
| Jun 30 | 65°F | 51°F | 103°F 1972 | 45°F 1933 | 19% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PDT).
- June 1
- sunrise 5:50 AM, sunset 8:25 PM
- June 30
- sunrise 5:52 AM, sunset 8:34 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00043714 (Half Moon Bay), public domain. Records: NOAA GHCN-Daily, station USC00047339, 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.