Climate averages 1991–2020
Napa weather
in November.
A mild, moderately wet month: the 8th warmest and the 8th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
November is a mild month in Napa: daytime highs average 18.3°C and nights cool to about 8.4°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 56 mm of rain on roughly 6 days, which makes November a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 08 min on an average November day.
The nearest other city in this atlas is Vallejo (22 km away). In November its highs average 18.0°C, about as warm as Napa, with 49 mm of rain.
Among the 498 cities listed in the United States, Napa ranks joint 172nd of 498 for the warmest November highs and joint 217th of 498 for the driest November (rainfall, lowest first). The mean November high of those 498 cities is 15.2°C; Napa is 3.1°C warmer than that mean.
From November to December, average highs fall by 4.2°C to 14.2°C, and monthly rainfall rises from 56 mm to 110 mm.
The annual picture
November in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Napa climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 14.4°C5.3°C | 5.3°C | 116 | 9.4 | 9.810 h |
| February | 15.9°C6.3°C | 6.3°C | 117 | 8.7 | 10.711 h |
| March | 18.0°C7.5°C | 7.5°C | 86 | 8.4 | 11.912 h |
| April | 20.7°C9.0°C | 9.0°C | 38 | 4.9 | 13.213 h |
| May | 24.6°C11.5°C | 11.5°C | 20 | 3.2 | 14.214 h |
| June | 28.9°C13.9°C | 13.9°C | 4.7 | 0.9 | 14.815 h |
| July | 30.7°C14.7°C | 14.7°C | 0.4 | 0.1 | 14.515 h |
| August | 30.6°C14.9°C | 14.9°C | 0.7 | 0.2 | 13.714 h |
| September | 29.5°C14.6°C | 14.6°C | 2.0 | 0.4 | 12.512 h |
| October | 25.1°C12.6°C | 12.6°C | 26 | 2.9 | 11.211 h |
| November, selected | 18.3°C8.4°C | 8.4°C | 56 | 5.9 | 10.110 h |
| December | 14.2°C5.6°C | 5.6°C | 110 | 9.4 | 9.610 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
November in nearby cities
- Vallejo in NovemberUnited States · 22 kmHigh 18.0°C · Low 8.3°C · 49 mm rain
- Fairfield in NovemberUnited States · 22 kmHigh 17.8°C · Low 8.7°C · 50 mm rain
- Vacaville in NovemberUnited States · 27 kmHigh 18.1°C · Low 8.6°C · 50 mm rain
- Santa Rosa, United States in NovemberUnited States · 41 kmHigh 18.0°C · Low 7.0°C · 75 mm rain
- Concord (California), United States in NovemberUnited States · 42 kmHigh 17.9°C · Low 8.8°C · 44 mm rain
- Berkeley in NovemberUnited States · 47 kmHigh 17.4°C · Low 8.3°C · 46 mm rain
- Antioch in NovemberUnited States · 53 kmHigh 17.9°C · Low 9.1°C · 45 mm rain
- Oakland in NovemberUnited States · 55 kmHigh 17.6°C · Low 8.6°C · 46 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Napa) is explained once on the Napa year overview and on the Sources, method and limits page.