Napa Valley in january: average Weather, Temperature and Climate
Weather in Napa Valley in january 2026
The weather in Napa Valley in january comes from statistical datas on the last years. You can view the weather statistics the entire month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout january
very bad weather
Weather at 6am
41°F
Clear/Sunny
44% of time
18%
12%
11%
Weather at 12pm
54°F
Clear/Sunny
45% of time
25%
15%
9%
Weather at 6pm
47°F
Clear/Sunny
46% of time
24%
14%
6%
Weather at 3am
43°F
42%
21%
12%
10%
Evolution of daily average temperature and precipitation in Napa Valley in january
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Napa Valley in january.
The climate of Napa Valley in january is very bad
the weather in Napa Valley in january is quite dry (with 6.5in of rainfall over 6 days). It should be noted an improvement from the previous month since in december it receives an average of 4.8in of precipitation over 6 days.
The climate is fairly fresh around this city the month of january, but it is bearable by dressing warm. The thermometer averaged maximum of 56°F. On average, the recorded minimum temperature is 41°F. Thus, the mean temperature average in january in Napa Valley is 49°F. These temperatures are far removed from those records observed in Napa Valley in the month of january with a maximum record of 74°F in 2009 and a minimum record of 23°F in 2012. You can expect to have about 3 days with temperatures above 65°F, or 10% of time.
On average, in Napa Valley, the days of january last 09:48. The sun rises at 07:26 and sets at 17:14.
With proper weather, this month is okay (but not the best) to go in Napa Valley in United States.
January: another location in California?
If you want to go to California in january, there are destinations with better weather than Napa Valley:
In january, 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 january
Check below seasonal norms These datas are generated from the weather statements earlier years of january.
| January | |||||
| Outside temperature | |||||
| Average temperature | 49°F | ||||
| Highest temperature | 56°F | ||||
| Lowest temperature | 41°F | ||||
| Highest record temperature | 74°F (2009) | ||||
| Lowest record temperature | 23°F (2012) | ||||
| Number of days at +65°F | 3 day(s) (10%) | ||||
| Number of days at -32°F | 3 day(s) (10%) | ||||
| Wind | |||||
| Wind speed | 11km/h | ||||
| Wind temperature | 38°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 6.5in | ||||
| Number of days with rainfall | 6 day(s) (20%) | ||||
| Record daily rainfall | 4.1in (2017) | ||||
| Other climate data | |||||
| Humidity | 81% | ||||
| Visibility | 8.94km | ||||
| Cloud cover | 36% | ||||
| UV index | 3 | ||||
| Daily sunshine hours | 8 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 07:26 | ||||
| Time of sunset | 17:14 | ||||
| Length of day | 09:48 | ||||
| Our opinion about the weather in january | |||||
| Our opinion at whereandwhen.net | very bad | ||||
How was the weather last january?
Here is the day by day recorded weather in Napa Valley in january 2025:
36°F to 54°F
47°F to 59°F
43°F to 54°F
36°F to 54°F
38°F to 58°F
41°F to 52°F
43°F to 52°F
49°F to 56°F
49°F to 65°F
45°F to 61°F
41°F to 63°F
38°F to 61°F
34°F to 58°F
41°F to 58°F
40°F to 61°F
40°F to 63°F
38°F to 49°F
38°F to 52°F
29°F to 54°F
31°F to 59°F
38°F to 58°F
40°F to 67°F
45°F to 67°F
41°F to 63°F
36°F to 54°F
36°F to 49°F
36°F to 59°F
38°F to 58°F
36°F to 41°F
40°F to 49°F
40°F to 49°F
Map: other cities in California in january
Cities near Napa Valley:
| Bodega Bay in january | tolerable weather |
| Stinson Beach in january | tolerable weather |
| Jenner in january | tolerable weather |
| Golden Gate National Recreation Area in january | tolerable weather |
| Point Reyes in january | tolerable weather |
| Oakland in january | tolerable weather |
| San Francisco in january | tolerable weather |
| Timber Cove in january | tolerable weather |
| Sacramento in january | tolerable weather |
| Sea Ranch in january | tolerable weather |
| Moss Beach in january | tolerable weather |
| Gualala in january | tolerable weather |
Click over cities on the map for information about the weather in january.
Napa Valley
perfect weather
good
tolerable
bad
very bad
Weather data for Napa Valley in january:
Weather data for Napa Valley for january 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.