Napa Weather: May
 |
Average Day Temperature: | 78.5°F |
|
Average Night Temperature: | 52.8°F |
|
Number of Sunny Days: | 23 days |
| Sunshine Hours: | 13.8 - 14.6 hours | |
|
Number of Rainy Days: | 0 days |
| Precipitation Totals: | 0.2 in | |
| detailed information | ||
Air Temperature in May, °F
The highest day temperature in May 2026 was 91°F. The lowest night temperature was 50°F. The average values for day and night temperatures during May were 73.1°F и 53.4°F respectivly.
Sunny, Cloudy and Gloomy days
Most of the days in May are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in May, in
Precipitation total in May for Napa is 0.2 in.
Wind Speed in May, mph
The average wind speed in May is 6.0 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 May is 11.6 hours.
Napa on the Weather Map
USA Resorts:
NAME
F°
| Boston |  |
+90 |
| Chicago | |
+76 |
| Hawaii |  |
+78 |
| Honolulu | |
+78 |
| Houston |  |
+86 |
| Las Vegas | |
+92 |
| Los Angeles |  |
+70 |
| Maui | |
+70 |
| Miami | |
+82 |
| Miami Beach | |
+84 |
| New York | |
+94 |
| San Diego | |
+64 |
| San Francisco | |
+60 |
| Sarasota | |
+94 |
| Tampa | |
+92 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Napa
Local time: 10:00
04 jun, thursday
| 1200 |  |
84°F | NE 6 mph |
| 1500 | |
86°F | NE 9 mph |
| 1800 | |
82°F | NE 8 mph |
| 2100 |  |
66°F | NE 5 mph |
05 jun, friday
| 0000 | |
58°F | E 4 mph |
| 0300 | |
54°F | NE 3 mph |
| 0600 |  |
54°F | E 2 mph |
| 0900 | |
70°F | NE 3 mph |