Napa Weather: July
 |
Average Day Temperature: | 88.8°F |
|
Average Night Temperature: | 59.1°F |
|
Number of Sunny Days: | 26 days |
| Sunshine Hours: | 14.1 - 14.8 hours | |
|
Number of Rainy Days: | 0 days |
| Precipitation Totals: | 0.0 in | |
| detailed information | ||
Air Temperature in July, °F
The highest day temperature in July 2025 was 95°F. The lowest night temperature was 51°F. The average values for day and night temperatures during July were 81.4°F и 55.5°F respectivly.
Sunny, Cloudy and Gloomy days
Most of the days in July are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in July, in
Precipitation total in July for Napa is 0.0 in. It makes july one of the least rainy months of the year.
Wind Speed in July, mph
The average wind speed in July is 5.6 mph. This value is relatively stable throughout the year.
Average Sunny Hours Per Day
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Napa in July is 12.9 hours.
Napa on the Weather Map
USA Resorts:
NAME
F°
| Chicago |  |
-2 |
| Hawaii | |
+78 |
| Honolulu | |
+78 |
| Houston | |
+44 |
| Las Vegas |  |
+40 |
| Los Angeles | |
+52 |
| Maui | |
+72 |
| Miami | |
+72 |
| Miami Beach |  |
+80 |
| New York | |
+18 |
| San Diego | |
+54 |
| San Francisco | |
+46 |
| Sarasota | |
+62 |
| Tampa | |
+62 |
| Washington | |
+28 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Napa
Local time: 00:42
05 dec, friday
| 0300 |  |
42°F | SW 2 mph |
| 0600 |  |
38°F | SW 2 mph |
| 0900 |  |
40°F | SW 2 mph |
| 1200 |  |
54°F | SW 0 mph |
| 1500 |  |
62°F | NE 2 mph |
| 1800 | |
56°F | N 2 mph |
| 2100 |  |
50°F | SE 1 mph |
06 dec, saturday
| 0000 | |
48°F | W 1 mph |