Napa Valley in july: average Weather, Temperature and Climate
Weather in Napa Valley in july 2025
The weather in Napa Valley in the month of july comes from statistical datas on the past years. You can view the weather statistics for all the month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout july
perfect weather UV index: 7
Weather at 6am
65°F
Clear/Sunny
87% of time
11%
3%
1%
Weather at 12pm
88°F
Clear/Sunny
90% of time
9%
2%
1%
Weather at 6pm
77°F
Clear/Sunny
93% of time
6%
2%
1%
Weather at 3am
58°F
77%
17%
6%
1%
Evolution of daily average temperature and precipitation in Napa Valley in july
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Napa Valley in july.
The climate of Napa Valley in july is perfect
The weather in july in Napa Valley is dry ; it never rains.
The climate good in this location july. The high seasonal norm is 90°F. On average, the recorded minimum temperature is 65°F. Thus, the mean temperature average on this month of july in Napa Valley is 77°F. These temperatures are far removed from those records observed in Napa Valley in the month of july with a maximum record of 106°F in 2021 and a minimum record of 50°F in 2020. You can expect to have about 21 days with temperatures above 86°F, or 68 of time.
On average, in Napa Valley, the days of july last 14:35. Sunrise is at 04:58 and sets at 19:33.
With a perfect climate, the month of july is advisable to go there.
Seasonal average climate and temperature of Napa Valley in july
Check below seasonal norms These datas are generated from the weather statements of the last years of july.
| July | |||||
| Outside temperature | |||||
| Average temperature | 77°F | ||||
| Highest temperature | 90°F | ||||
| Lowest temperature | 65°F | ||||
| Highest record temperature | 106°F (2021) | ||||
| Lowest record temperature | 50°F (2020) | ||||
| Number of days at +86°F | 21 day(s) (68%) | ||||
| Number of days at +65°F | 31 day(s) (100%) | ||||
| Wind | |||||
| Wind speed | 14km/h | ||||
| Wind temperature | 65°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 0.1in | ||||
| Number of days with rainfall | 0 day(s) (0%) | ||||
| Record daily rainfall | 0.2in (2015) | ||||
| Other climate data | |||||
| Humidity | 67% | ||||
| Visibility | 9.69km | ||||
| Cloud cover | 6% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 15 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 04:58 | ||||
| Time of sunset | 19:33 | ||||
| Length of day | 14:35 | ||||
| Our opinion about the weather in july | |||||
| Our opinion at whereandwhen.net | perfect | ||||
How was the weather last july?
Here is the day by day recorded weather in Napa Valley in july 2024:
58°F to 95°F
70°F to 106°F
72°F to 106°F
67°F to 104°F
67°F to 106°F
65°F to 103°F
59°F to 97°F
56°F to 94°F
54°F to 94°F
59°F to 103°F
63°F to 106°F
61°F to 103°F
65°F to 95°F
59°F to 94°F
56°F to 92°F
52°F to 86°F
52°F to 94°F
58°F to 95°F
59°F to 99°F
58°F to 94°F
56°F to 92°F
58°F to 101°F
63°F to 101°F
63°F to 99°F
58°F to 95°F
56°F to 83°F
54°F to 81°F
50°F to 79°F
50°F to 83°F
52°F to 85°F
56°F to 92°F
Map: other cities in California in july
Cities near Napa Valley:
| Bodega Bay in july | perfect weather |
| Stinson Beach in july | perfect weather |
| Jenner in july | perfect weather |
| Golden Gate National Recreation Area in july | perfect weather |
| Point Reyes in july | good weather |
| Oakland in july | perfect weather |
| San Francisco in july | perfect weather |
| Timber Cove in july | perfect weather |
| Sacramento in july | good weather |
| Sea Ranch in july | perfect weather |
| Moss Beach in july | good weather |
| Gualala in july | perfect weather |
Click over cities on the map for information about the weather in july.
Napa Valley
perfect weather
good
tolerable
bad
very bad
Weather data for Napa Valley in july:
Weather data for Napa Valley for july 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.