Santa Rosa Weather in July
Average highs run from 15°C on July 1 to 16°C on July 31, and lows from 2°C to 1°C. Normal precipitation for the month is 19 mm over about 3 wet days.
July day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
July at a glance
- Average high
- 15°C
- Average low
- 1°C
- Precipitation
- 19 mm
- Record high
- 28°CJul 28, 1968
- Record low
- -12°CJul 21, 1953
- Daylight
- 9 h 42 min to 10 h 16 min
- Cloud cover
- 58%
- Humidity
- 74%
- Dew point
- 2°C
- Wind
- 8.6 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 |
|---|---|---|---|---|---|
| Jul 1 | 15°C | 2°C | 21°C 1991 | -11°C 1970 | 9% |
| Jul 2 | 14°C | 2°C | 22°C 1986 | -8°C 1964 | 9% |
| Jul 3 | 14°C | 2°C | 23°C 1966 | -9°C 1964 | 9% |
| Jul 4 | 15°C | 2°C | 24°C 2021 | -9°C 1953 | 9% |
| Jul 5 | 15°C | 2°C | 23°C 1987 | -8°C 1953 | 9% |
| Jul 6 | 1°C | 27°C 1958 | -9°C 1955 | 9% | |
| Jul 7 | 15°C | 2°C | 26°C 2006 | -8°C 1955 | 9% |
| Jul 8 | 14°C | 2°C | 23°C 1995 | -9°C 1976 | 10% |
| Jul 9 | 15°C | 1°C | 22°C 1959 | -11°C 2007 | 9% |
| Jul 10 | 14°C | 1°C | 23°C 1968 | -11°C 1988 | 9% |
| Jul 11 | 14°C | 2°C | 24°C 1990 | -10°C 1988 | 9% |
| Jul 12 | 13°C | 2°C | 23°C 1956 | -7°C 2007 | 9% |
| Jul 13 | 15°C | 2°C | 22°C 2008 | -9°C 1957 | 9% |
| Jul 14 | 15°C | 1°C | 24°C 1971 | -6°C 1966 | 9% |
| Jul 15 | 14°C | 1°C | 27°C 1971 | -8°C 1965 | 9% |
| Jul 16 | 14°C | 0°C | 27°C 2008 | -7°C 2010 | 10% |
| Jul 17 | 15°C | 0°C | 25°C 2013 | -9°C 1975 | 9% |
| Jul 18 | 15°C | 1°C | 23°C 1976 | -8°C 1990 | 10% |
| Jul 19 | 16°C | 1°C | 26°C 2025 | -7°C 1953 | 9% |
| Jul 20 | 15°C | 2°C | 23°C 2012 | -6°C 1965 | 9% |
| Jul 21 | 15°C | 2°C | 24°C 2006 | -12°C 1953 | 9% |
| Jul 22 | 14°C | 0°C | 22°C 1972 | -8°C 1953 | 8% |
| Jul 23 | 15°C | 0°C | 23°C 1980 | -9°C 1962 | 8% |
| Jul 24 | 15°C | 1°C | 25°C 1999 | -6°C 1954 | 8% |
| Jul 25 | 17°C | 1°C | 25°C 1986 | -5°C 1988 | 8% |
| Jul 26 | 17°C | 1°C | 26°C 1997 | -6°C 1975 | 8% |
| Jul 27 | 15°C | 2°C | 25°C 1964 | -6°C 2001 | 8% |
| Jul 28 | 17°C | 3°C | 28°C 1968 | -5°C 1993 | 8% |
| Jul 29 | 15°C | 2°C | 26°C 1968 | -9°C 1953 | 8% |
| Jul 30 | 16°C | 1°C | 24°C 1996 | -8°C 2006 | 8% |
| Jul 31 | 16°C | 1°C | 26°C 1970 | -9°C 1993 | 8% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- July 1
- sunrise 8:30 AM, sunset 6:12 PM
- July 31
- sunrise 8:16 AM, sunset 6:32 PM
Other months
Sources
Records: NOAA GHCN-Daily, station AR000087623, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.