San Rafael Weather in October
Average highs run from 20°C on October 1 to 24°C on October 31, and lows from 5°C to 8°C. Normal precipitation for the month is 37 mm over about 6 wet days.
October day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
October at a glance
- Average high
- 22°C
- Average low
- 6°C
- Precipitation
- 37 mm
- Record high
- 37°COct 26, 2021
- Record low
- -2°COct 6, 1981
- Daylight
- 12 h 27 min to 13 h 29 min
- Cloud cover
- 44%
- Humidity
- 45%
- Dew point
- 0°C
- Wind
- 15.1 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Oct 1 | 20°C | 5°C | 32°C 2007 | 0°C 2021 | 16% |
| Oct 2 | 20°C | 5°C | 31°C 1989 | 1°C 1991 | 17% |
| Oct 3 | 20°C | 5°C | 30°C 1996 | -2°C 2021 | 16% |
| Oct 4 | 20°C | 5°C | 30°C 1998 | 0°C 1999 | 16% |
| Oct 5 | 20°C | 5°C | 30°C 2017 | -1°C 2020 | 16% |
| Oct 6 | 21°C | 5°C | 31°C 2004 | -2°C 1981 | 16% |
| Oct 7 | 21°C | 5°C | 32°C 1983 | -2°C 1981 | 18% |
| Oct 8 | 21°C | 5°C | 33°C 2018 | 1°C 2004 | 18% |
| Oct 9 | 21°C | 5°C | 32°C 2006 | 1°C 2022 | 17% |
| Oct 10 | 21°C | 6°C | 32°C 1993 | 1°C 2014 | 17% |
| Oct 11 | 21°C | 6°C | 33°C 2005 | -1°C 1977 | 16% |
| Oct 12 | 22°C | 6°C | 32°C 1991 | 1°C 1973 | 16% |
| Oct 13 | 22°C | 6°C | 35°C 2002 | 0°C 1995 | 16% |
| Oct 14 | 22°C | 6°C | 35°C 1992 | 3°C 2009 | 16% |
| Oct 15 | 22°C | 6°C | 35°C 2003 | 1°C 2021 | 15% |
| Oct 16 | 22°C | 6°C | 33°C 2003 | 2°C 2015 | 15% |
| Oct 17 | 22°C | 7°C | 33°C 1979 | 0°C 1976 | 15% |
| Oct 18 | 22°C | 7°C | 36°C 2020 | 3°C 2004 | 15% |
| Oct 19 | 22°C | 7°C | 32°C 1998 | 1°C 2002 | 14% |
| Oct 20 | 23°C | 7°C | 33°C 2024 | 3°C 2002 | 15% |
| Oct 21 | 23°C | 7°C | 32°C 2000 | 2°C 2016 | 15% |
| Oct 22 | 23°C | 7°C | 33°C 2014 | 2°C 2002 | 14% |
| Oct 23 | 23°C | 7°C | 33°C 2006 | 0°C 1991 | 13% |
| Oct 24 | 23°C | 7°C | 34°C 1978 | 1°C 1974 | 13% |
| Oct 25 | 23°C | 7°C | 34°C 2007 | 4°C 1991 | 14% |
| Oct 26 | 23°C | 7°C | 37°C 2021 | 4°C 1973 | 14% |
| Oct 27 | 23°C | 7°C | 35°C 2007 | 3°C 1975 | 14% |
| Oct 28 | 23°C | 8°C | 30°C 1978 | 2°C 1992 | 15% |
| Oct 29 | 23°C | 8°C | 36°C 2021 | 3°C 1998 | 15% |
| Oct 30 | 24°C | 8°C | 36°C 2009 | 2°C 1992 | 14% |
| Oct 31 | 24°C | 8°C | 35°C 2024 | 0°C 1997 | 14% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- October 1
- sunrise 7:10 AM, sunset 7:37 PM
- October 31
- sunrise 6:33 AM, sunset 8:02 PM
Other months
Sources
Records: NOAA GHCN-Daily, station ARM00087509, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine, and temperature and precipitation: 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.