Napa Valley in december: average Weather, Temperature and Climate
Weather in Napa Valley in december 2024
The weather in Napa Valley in the month of december comes from statistical datas on the past years. You can view the weather statistics the entire month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout december
very bad weather
Weather at 6am
41°F
Clear/Sunny
48% of time
17%
11%
11%
Weather at 12pm
54°F
Clear/Sunny
49% of time
21%
12%
11%
Weather at 6pm
47°F
Clear/Sunny
47% of time
21%
13%
8%
Weather at 3am
43°F
47%
19%
10%
10%
Evolution of daily average temperature and precipitation in Napa Valley in december
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Napa Valley in december.
The climate of Napa Valley in december is very bad
the weather in Napa Valley in december is quite dry (with 4.8in of precipitation over 6 days). The weather is worst than the previous month since in november there is an average of 2.8in of rainfall over 3 days.
The climate is quite cool in that area this month, but it is bearable when dressing warm. The high seasonal norm is 54°F. In the morning the temperature drops to 41°F. Thus, the mean temperature average on this month of december in Napa Valley is 49°F. Note that these seasonal averages are in contrast with those observed in Napa Valley in the month of december with a maximum record of 68°F in 2017 and a minimum record of 25°F in 2009. You can plan to have about 1 days with temperatures above 65°F, or 3% of time.
Day length in Napa Valley in december is 09:30. Sunrise is at 07:20 and sets at 16:50.
With a correct weather, the month of december is okay (but not good) to go in Napa Valley in United States.
December: another location in California?
If you want to go to California in december, there are destinations with better weather than Napa Valley:
In december, Los Angeles , San Diego, Channel Islands National Park, Encinitas, Gaviota and Hollywood have good weather.
Finally, San Francisco, Palm Springs, Angeles National Forest, Anza-Borrego Desert State Park, Big Sur and Cambria have a tolerable climate, but better than Napa Valley.
Seasonal average climate and temperature of Napa Valley in december
Check below seasonal norms These statistics are generated from the weather statements of the last years of the month of december.
| December | |||||
| Outside temperature | |||||
| Average temperature | 49°F | ||||
| Highest temperature | 54°F | ||||
| Lowest temperature | 41°F | ||||
| Highest record temperature | 68°F (2017) | ||||
| Lowest record temperature | 25°F (2009) | ||||
| Number of days at +65°F | 1 day(s) (3%) | ||||
| Number of days at -32°F | 3 day(s) (10%) | ||||
| Wind | |||||
| Wind speed | 11km/h | ||||
| Wind temperature | 40°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 4.8in | ||||
| Number of days with rainfall | 6 day(s) (19%) | ||||
| Record daily rainfall | 3.5in (2012) | ||||
| Other climate data | |||||
| Humidity | 78% | ||||
| Visibility | 8.87km | ||||
| Cloud cover | 37% | ||||
| UV index | 3 | ||||
| Daily sunshine hours | 8 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 07:20 | ||||
| Time of sunset | 16:50 | ||||
| Length of day | 09:30 | ||||
| Our opinion about the weather in december | |||||
| Our opinion at whereandwhen.net | very bad | ||||
How was the weather last december?
Here is the day by day recorded weather in Napa Valley in december 2023:
38°F to 58°F
47°F to 54°F
47°F to 58°F
49°F to 59°F
49°F to 61°F
47°F to 59°F
41°F to 50°F
36°F to 52°F
38°F to 56°F
38°F to 54°F
41°F to 61°F
43°F to 61°F
41°F to 56°F
41°F to 56°F
41°F to 58°F
43°F to 61°F
47°F to 61°F
45°F to 50°F
52°F to 56°F
49°F to 50°F
47°F to 58°F
47°F to 59°F
41°F to 58°F
41°F to 56°F
45°F to 61°F
43°F to 56°F
47°F to 52°F
49°F to 52°F
47°F to 54°F
45°F to 52°F
41°F to 49°F
Map: other cities in California in december
Cities near Napa Valley:
| Bodega Bay in december | tolerable weather |
| Stinson Beach in december | tolerable weather |
| Jenner in december | tolerable weather |
| Golden Gate National Recreation Area in december | tolerable weather |
| Point Reyes in december | tolerable weather |
| Oakland in december | tolerable weather |
| San Francisco in december | tolerable weather |
| Timber Cove in december | tolerable weather |
| Sacramento in december | tolerable weather |
| Sea Ranch in december | tolerable weather |
| Moss Beach in december | tolerable weather |
| Gualala in december | tolerable weather |
Click over cities on the map for information about the weather in december.
Napa Valley
perfect weather
good
tolerable
bad
very bad
Weather data for Napa Valley in december:
Weather data for Napa Valley for december are derived from an average of the weather forecast since 2009 in Napa Valley. There is a margin of error and these forecasts are to be considered as general information only. The weather in Napa Valley can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Napa Valley.