Napa, CA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Napa now
Loading the National Weather Service forecast…
Napa weather by the hour
Napa weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Napa.
This week in Napa
Sunrise, sunset and moon in Napa
What is the weather usually like in Napa?
Köppen climate classification, calculated from the 1991–2020 normals
- Septemberwarmest month · 84°F average high
- Decembercoldest month · 40°F average low
- 26.7 inprecipitation per year · 677 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Napa: May to July and October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station NAPA STATE HOSPITAL, CA US (USC00046074), adjusted for the elevation of Napa.
Napa weather month by month
Sunrise and sunset in Napa through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:23 AM | 5:14 PM | 9 h 51 min |
| February | 6:57 AM | 5:48 PM | 10 h 51 min |
| March | 7:18 AM | 7:17 PM | 11 h 59 min |
| April | 6:31 AM | 7:46 PM | 13 h 15 min |
| May | 5:56 AM | 8:14 PM | 14 h 18 min |
| June | 5:43 AM | 8:35 PM | 14 h 52 min |
| July | 5:56 AM | 8:33 PM | 14 h 37 min |
| August | 6:22 AM | 8:04 PM | 13 h 41 min |
| September | 6:49 AM | 7:18 PM | 12 h 28 min |
| October | 7:17 AM | 6:32 PM | 11 h 15 min |
| November | 6:49 AM | 4:58 PM | 10 h 8 min |
| December | 7:17 AM | 4:51 PM | 9 h 33 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Napa?
Napa has a warm-summer mediterranean climate. The warmest month is September, with an average high of 84°F (29°C), and the coldest is December, with average lows of 40°F (4°C).
It gets about 26.7 inches (677 mm) of precipitation a year. The wettest month is December and the driest is July.
The best time to visit Napa is May to July and October. At 20 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Napa
Weather in towns near Napa
- Silverado Resort weather4.8 mi NE
- Yountville weather7.5 mi NW
- Green Valley weather8.3 mi E
- American Canyon weather8.5 mi S
- Sonoma weather8.6 mi W
- Boyes Hot Springs weather10.2 mi W
- Fetters Hot Springs-Agua Caliente weather10.3 mi W
- El Verano weather10.3 mi W
- Temelec weather11.0 mi W
- Oakville weather11.3 mi NW
Questions about the weather in Napa
What is the hottest month in Napa?
September, with an average high of 84°F (29°C).
What is the coldest month in Napa?
December, with an average low of 40°F (4°C).
How much does it rain in Napa?
About 26.7 inches (677 mm) a year; the wettest month is December.
Does it snow in Napa?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Napa?
May to July and October, when temperatures are most pleasant and rainy days are fewer.
What climate does Napa have?
Warm-summer mediterranean (Köppen Csb).
What is the weather like in Napa in November?
Highs average 66°F and lows 44°F, with about 2.8 inches of precipitation.
What time is sunrise in Napa?
Around 6:49 AM in mid-November, and sunset around 4:58 PM. Today’s exact times are shown above.
Where does this Napa weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Napa.
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