Climate Napa - California
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 55 | 60 | 64 | 68 | 73 | 78 |
| Average low in ºF Av. low Lo | 37 | 39 | 40 | 42 | 46 | 50 |
| Av. precipitation in inch Av. precip. Pre. | 4.38 | 3.79 | 2.50 | 1.04 | 0.82 | 0.19 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 78 | 80 | 80 | 74 | 64 | 56 |
| Average low in ºF Av. low Lo | 53 | 52 | 49 | 43 | 39 | 36 |
| Av. precipitation in inch Av. precip. Pre. | 0.00 | 0.03 | 0.32 | 0.97 | 2.56 | 3.79 |
What is the average weather in Napa, California?
Napa experiences a warm-summer climate with dry summers and wetter winters. Summers are warm, but the warmest month is unusually late, occurring in September. Winters are cool, bringing moderate precipitation, with frequent rain or drizzle common during the cooler season. The seasonal contrast between the dry, warm summers and the cool, wet winters is strong.
Napa Climate Graph - California Climate Chart
Daily normals Napa - California - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 54.2 | 36.3 | 0.20 | 0.20 | 0.00 | 0.00 |
| 2 Jan | 54.2 | 36.3 | 0.39 | 0.39 | 0.00 | 0.00 |
| 3 Jan | 54.2 | 36.4 | 0.55 | 0.55 | 0.00 | 0.00 |
| 4 Jan | 54.2 | 36.4 | 0.71 | 0.71 | 0.00 | 0.00 |
| 5 Jan | 54.3 | 36.5 | 0.91 | 0.91 | 0.00 | 0.00 |
| 6 Jan | 54.3 | 36.5 | 1.06 | 1.06 | 0.00 | 0.00 |
| 7 Jan | 54.3 | 36.6 | 1.22 | 1.22 | 0.00 | 0.00 |
| 8 Jan | 54.3 | 36.7 | 1.42 | 1.42 | 0.00 | 0.00 |
| 9 Jan | 54.4 | 36.7 | 1.57 | 1.57 | 0.00 | 0.00 |
| 10 Jan | 54.4 | 36.8 | 1.77 | 1.77 | 0.00 | 0.00 |
| 11 Jan | 54.5 | 36.8 | 1.93 | 1.93 | 0.00 | 0.00 |
| 12 Jan | 54.5 | 36.9 | 2.09 | 2.09 | 0.00 | 0.00 |
| 13 Jan | 54.6 | 36.9 | 2.24 | 2.24 | 0.00 | 0.00 |
| 14 Jan | 54.7 | 36.9 | 2.40 | 2.40 | 0.00 | 0.00 |
| 15 Jan | 54.8 | 37.0 | 2.56 | 2.56 | 0.00 | 0.00 |
| 16 Jan | 54.8 | 37.0 | 2.68 | 2.68 | 0.00 | 0.00 |
| 17 Jan | 54.9 | 37.1 | 2.80 | 2.80 | 0.00 | 0.00 |
| 18 Jan | 55.0 | 37.1 | 2.91 | 2.91 | 0.00 | 0.00 |
| 19 Jan | 55.1 | 37.2 | 3.03 | 3.03 | 0.00 | 0.00 |
| 20 Jan | 55.2 | 37.2 | 3.15 | 3.15 | 0.00 | 0.00 |
| 21 Jan | 55.4 | 37.2 | 3.27 | 3.27 | 0.00 | 0.00 |
| 22 Jan | 55.5 | 37.3 | 3.39 | 3.39 | 0.00 | 0.00 |
| 23 Jan | 55.6 | 37.3 | 3.46 | 3.46 | 0.00 | 0.00 |
| 24 Jan | 55.8 | 37.3 | 3.58 | 3.58 | 0.00 | 0.00 |
| 25 Jan | 55.9 | 37.4 | 3.70 | 3.70 | 0.00 | 0.00 |
| 26 Jan | 56.1 | 37.4 | 3.82 | 3.82 | 0.00 | 0.00 |
| 27 Jan | 56.2 | 37.5 | 3.90 | 3.90 | 0.00 | 0.00 |
| 28 Jan | 56.4 | 37.5 | 4.02 | 4.02 | 0.00 | 0.00 |
| 29 Jan | 56.5 | 37.5 | 4.13 | 4.13 | 0.00 | 0.00 |
| 30 Jan | 56.7 | 37.6 | 4.25 | 4.25 | 0.00 | 0.00 |
| 31 Jan | 56.9 | 37.6 | 4.37 | 4.37 | 0.00 | 0.00 |
Weather history Napa - June 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Jun | 82.9 | 50.0 | 0.00 | - | - |
| 02 Jun | 71.1 | 51.1 | 0.00 | - | - |
| 03 Jun | 86.0 | 48.0 | 0.00 | - | - |
| 04 Jun | 78.1 | 51.1 | 0.00 | - | - |
| 05 Jun | 81.0 | 51.1 | 0.00 | - | - |
| 06 Jun | 79.0 | 52.0 | 0.00 | - | - |
| 07 Jun | 78.1 | 45.0 | 0.00 | - | - |
| 08 Jun | 80.1 | 46.0 | 0.00 | - | - |
| 09 Jun | 79.0 | 54.0 | 0.00 | - | - |
| 10 Jun | - | - | - | - | - |
| 11 Jun | - | - | - | - | - |
| 12 Jun | 84.0 | 54.0 | 0.00 | - | - |
| 13 Jun | 78.1 | 53.1 | 0.00 | - | - |
| 14 Jun | 75.0 | 57.9 | 0.00 | - | - |
| 15 Jun | - | - | - | - | - |
| 16 Jun | - | - | - | - | - |
| 17 Jun | 73.0 | 57.9 | 0.00 | - | - |
| 18 Jun | 72.0 | 57.9 | 0.00 | - | - |
| 19 Jun | 72.0 | 59.0 | 0.00 | - | - |
| 20 Jun | 75.9 | 55.0 | 0.00 | - | - |
| 21 Jun | - | - | - | - | - |
| 22 Jun | - | - | - | - | - |
| 23 Jun | - | - | - | - | - |
| 24 Jun | - | - | - | - | - |
| 25 Jun | - | - | - | - | - |
| 26 Jun | - | - | - | - | - |
| 27 Jun | - | - | - | - | - |
| 28 Jun | - | - | - | - | - |
| 29 Jun | - | - | - | - | - |
| 30 Jun | - | - | - | - | - |
Past weather Napa
| Jun 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 77.8 ºF | 55 ºF | |
| Average low temperature Av. low temp. | 52.7 ºF | 37 ºF | |
| Total precipitation Total precip. | 0.00 inch | 4.38 inch | |
| Total snowfall Total snowfall | - inch | 0 inch | |
| Highest max temperature Highest max temp. | 86.0 ºF | - | |
| Lowest max temperature Lowest max temp. | 71.1 ºF | - | |
| Highest min temperature Highest min temp. | 59.0 ºF | - | |
| Lowest min temperature Lowest min temp. | 45.0 ºF | - | |
Past weather June 2026 incomplete - Missing data
Geo Napa - California
| Country | United States | |
|---|---|---|
| State | California | |
| County | Napa | |
| City | Napa | |
| Zip Code | 94558 | |
| Longitude | -122.29 dec. degr. | |
| Latitude | 38.3 dec. degr. | |
| Altitude - Elevation | 23ft | |
| ICAO | - | |
| IATA | - |
Date and Time Napa - California
| Local Time | 03:40 AM | |
|---|---|---|
| Sunrise | 05:45 AM | |
| Sunset | 08:38 PM | |
| Day/Night | Night | |
| Timezone | Pacific Daylight Time | |
| Timezone DB | America - Los Angeles |
Map of Napa - California
USGS National Map — Open interactive map
Napa weather averages
| Annual high temperature | 69ºF |
| Annual low temperature | 44ºF |
| Average annual precip. | 20.39 inch |
Station Data
Monthly averages Napa
Longitude: -122.287, Latitude: 38.2975
Average weather Napa, CA - 94558
Monthly: 1991-2020 normals
History: 2008-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...