Warm-summer Mediterranean climate
Climate Sonoma - California
Annual high73ºF
Annual low45ºF
Precipitation31.43 inch
| Month | HighºF | LowºF | Precipinch |
|---|---|---|---|
| Jan | 56 | 38 | 6.02 |
| Feb | 62 | 40 | 5.95 |
| Mar | 65 | 42 | 4.39 |
| Apr | 70 | 43 | 1.78 |
| May | 76 | 47 | 1.06 |
| Jun | 83 | 51 | 0.19 |
| Jul | 90 | 52 | 0.00 |
| Aug | 87 | 52 | 0.09 |
| Sep | 85 | 51 | 0.24 |
| Oct | 77 | 47 | 1.64 |
| Nov | 65 | 42 | 3.86 |
| Dec | 56 | 38 | 6.21 |
- JanHigh 56ºFLow 38ºFPrecip 6.02 inch
- FebHigh 62ºFLow 40ºFPrecip 5.95 inch
- MarHigh 65ºFLow 42ºFPrecip 4.39 inch
- AprHigh 70ºFLow 43ºFPrecip 1.78 inch
- MayHigh 76ºFLow 47ºFPrecip 1.06 inch
- JunHigh 83ºFLow 51ºFPrecip 0.19 inch
- JulHigh 90ºFLow 52ºFPrecip 0.00 inch
- AugHigh 87ºFLow 52ºFPrecip 0.09 inch
- SepHigh 85ºFLow 51ºFPrecip 0.24 inch
- OctHigh 77ºFLow 47ºFPrecip 1.64 inch
- NovHigh 65ºFLow 42ºFPrecip 3.86 inch
- DecHigh 56ºFLow 38ºFPrecip 6.21 inch
Climate summary
What is the average weather in Sonoma, California?
Sonoma experiences a warm-summer climate, characterized by hot, dry summers and cool, wet winters. Rainfall is moderate overall, but it is concentrated in the cooler months, with frequent rain or drizzle common during winter. Summers are notably dry, creating a strong seasonal contrast in precipitation.
Sonoma weather averages
Annual high73ºF
Annual low45ºF
Precipitation31.43 inch
Daily normals Sonoma - California - January
| Day | HighºF | LowºF | Prec/ | Prec/ |
|---|---|---|---|---|
| Jan 1 | 55.7 | 37.7 | 0.13 | 0.13 |
| Jan 2 | 55.7 | 37.7 | 0.28 | 0.28 |
| Jan 3 | 55.8 | 37.8 | 0.43 | 0.43 |
| Jan 4 | 55.8 | 37.8 | 0.60 | 0.60 |
| Jan 5 | 55.9 | 37.8 | 0.76 | 0.76 |
| Jan 6 | 55.9 | 37.9 | 0.93 | 0.93 |
| Jan 7 | 56.0 | 37.9 | 1.09 | 1.09 |
| Jan 8 | 56.1 | 37.9 | 1.27 | 1.27 |
| Jan 9 | 56.1 | 38.0 | 1.45 | 1.45 |
| Jan 10 | 56.2 | 38.0 | 1.63 | 1.63 |
| Jan 11 | 56.3 | 38.1 | 1.82 | 1.82 |
| Jan 12 | 56.4 | 38.1 | 2.00 | 2.00 |
| Jan 13 | 56.5 | 38.2 | 2.17 | 2.17 |
| Jan 14 | 56.6 | 38.2 | 2.34 | 2.34 |
| Jan 15 | 56.7 | 38.3 | 2.51 | 2.51 |
| Jan 16 | 56.8 | 38.4 | 2.68 | 2.68 |
| Jan 17 | 56.9 | 38.4 | 2.85 | 2.85 |
| Jan 18 | 57.0 | 38.5 | 3.02 | 3.02 |
| Jan 19 | 57.2 | 38.5 | 3.20 | 3.20 |
| Jan 20 | 57.3 | 38.6 | 3.38 | 3.38 |
| Jan 21 | 57.4 | 38.6 | 3.56 | 3.56 |
| Jan 22 | 57.6 | 38.7 | 3.73 | 3.73 |
| Jan 23 | 57.7 | 38.8 | 3.92 | 3.92 |
| Jan 24 | 57.9 | 38.8 | 4.11 | 4.11 |
| Jan 25 | 58.0 | 38.9 | 4.30 | 4.30 |
| Jan 26 | 58.2 | 39.0 | 4.49 | 4.49 |
| Jan 27 | 58.3 | 39.0 | 4.69 | 4.69 |
| Jan 28 | 58.5 | 39.1 | 4.88 | 4.88 |
| Jan 29 | 58.7 | 39.1 | 5.08 | 5.08 |
| Jan 30 | 58.8 | 39.2 | 5.28 | 5.28 |
| Jan 31 | 59.0 | 39.3 | 5.47 | 5.47 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Sonoma - September 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Sep 1 | 73.0 | 55.0 | 0.00 |
| Sep 2 | 73.9 | 55.9 | 0.01 |
| Sep 3 | 73.0 | 55.9 | 0.06 |
| Sep 4 | 75.0 | 52.0 | 0.00 |
| Sep 5 | 78.1 | 48.0 | 0.00 |
| Sep 6 | 77.0 | 45.0 | 0.00 |
| Sep 7 | 87.1 | 48.9 | 0.00 |
| Sep 8 | 93.0 | 52.0 | 0.00 |
| Sep 9 | 100.0 | 57.9 | 0.00 |
| Sep 10 | 98.1 | 64.0 | 0.00 |
| Sep 11 | 95.0 | 55.9 | 0.00 |
| Sep 12 | 82.0 | 52.0 | 0.00 |
| Sep 13 | 75.9 | 48.9 | 0.00 |
| Sep 14 | 84.9 | 48.0 | 0.00 |
| Sep 15 | 82.0 | 50.0 | 0.00 |
| Sep 16 | 75.0 | 53.1 | 0.00 |
| Sep 17 | 73.9 | 55.0 | 0.00 |
| Sep 18 | 82.0 | 50.0 | 0.00 |
| Sep 19 | 84.9 | 48.9 | 0.00 |
| Sep 20 | 84.9 | 52.0 | 0.00 |
| Sep 21 | 73.0 | 55.0 | 0.00 |
| Sep 22 | 75.0 | 54.0 | 0.00 |
| Sep 23 | 89.1 | 55.0 | 0.00 |
| Sep 24 | 91.0 | 53.1 | 0.00 |
| Sep 25 | 80.1 | 46.9 | 0.00 |
| Sep 26 | 84.9 | 46.9 | 0.00 |
| Sep 27 | 77.0 | 55.9 | 0.00 |
| Sep 28 | 80.1 | 44.1 | 0.00 |
| Sep 29 | 93.0 | 46.9 | 0.00 |
| Sep 30 | 93.0 | 51.1 | 0.00 |
The data for September 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature100.0ºF · Sep 9
- Lowest max temperature73.0ºF · Sep 1
- Highest min temperature64.0ºF · Sep 10
- Lowest min temperature44.1ºF · Sep 28
Geo Sonoma - California
Location
- Country
- United States
- State
- California
- County
- Sonoma
- City
- Sonoma
- Zip Code
- 95476
- Elevation
- 26 ft
- Longitude
- -122.43
- Latitude
- 38.26
- ICAO
- –
- IATA
- –