UTC Offset
UTC-07:00
Napa, United States Snapshot 2026
Where is Napa?
Napa, United States
- Continent
- Americas
- Country
- United States
- City
- Napa
- Population
- 80.4K
- Elevation
- 6 m
- Coordinates
- 38.30°, -122.29°
Napa is a city in United States with a population of approximately 80.4K. Average temperatures range from 6°C (43°F) in January to 32°C (90°F) in August. The best time to visit is May, July, August, September, October.
Time in Napa right now
Open full time & time zone page 18:21 21
Monday, June 15, 2026
IANA time zone
America/Los_Angeles
Daylight saving
DST in effect
PST / PDT
Next DST change
November 1
backward -1h
Live weather in Napa
Daylight in Napa today
View full sunrise & sunset page Sunrise
Sunset
Day length
14h 49m
Climate normals for Napa
Long-term monthly averages based on historical data.
January
Fair 
February
Fair March
Good April
Good May best
Excellent June
Excellent July best
Excellent August best
Excellent September best
Excellent October best
Excellent November
Good December
Fair | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 15°C / 6°C | 14°C / 4°C | 10days (129 mm) Wet | 6.3h Fair | 80% Humid | 2.8 Moderate | Fair | View Details |
| February | 17°C / 6°C | 15°C / 4°C | 7days (106 mm) Good | 8.1h Good | 72% Muggy | 3.6 Moderate | Fair | View Details |
| March | 18°C / 7°C | 17°C / 5°C | 11days (101 mm) Wet | 9.1h Good | 73% Muggy | 5.2 High | Good | View Details |
| April | 22°C / 9°C | 21°C / 8°C | 4days (26 mm) Good | 10.9h Excellent | 67% Muggy | 6.7 High | Good | View Details |
| May best | 26°C / 12°C | 26°C / 11°C | 2days (16 mm) Excellent | 12.5h Excellent | 60% Moderate | 7.8 Very High | Excellent | View Details |
| June | 31°C / 14°C | 31°C / 14°C | 0days (1 mm) Excellent | 13.5h Excellent | 54% Moderate | 8.1 Very High | Excellent | View Details |
| July best | 32°C / 15°C | 32°C / 14°C | 0days (0 mm) Excellent | 13.3h Excellent | 57% Moderate | 8.2 Very High | Excellent | View Details |
| August best | 32°C / 16°C | 32°C / 15°C | 0days (0 mm) Excellent | 12.4h Excellent | 59% Moderate | 7.6 Very High | Excellent | View Details |
| September best | 31°C / 15°C | 30°C / 15°C | 1days (5 mm) Excellent | 11.2h Excellent | 59% Moderate | 6.4 High | Excellent | View Details |
| October best | 27°C / 13°C | 25°C / 12°C | 3days (31 mm) Excellent | 9.4h Good | 57% Moderate | 4.8 Moderate | Excellent | View Details |
| November | 20°C / 9°C | 18°C / 7°C | 5days (57 mm) Good | 7.7h Good | 69% Muggy | 3.2 Moderate | Good | View Details |
| December | 15°C / 6°C | 14°C / 4°C | 9days (105 mm) Wet | 6.1h Fair | 79% Humid | 2.4 Moderate | Fair | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 15°C / 6°C . Feb: 17°C / 6°C . Mar: 18°C / 7°C . Apr: 22°C / 9°C . May: 26°C / 12°C . Jun: 31°C / 14°C . Jul: 32°C / 15°C . Aug: 32°C / 16°C . Sep: 31°C / 15°C . Oct: 27°C / 13°C . Nov: 20°C / 9°C . Dec: 15°C / 6°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 129 mm. Feb: 106 mm. Mar: 101 mm. Apr: 26 mm. May: 16 mm. Jun: 1 mm. Jul: 0 mm. Aug: 0 mm. Sep: 5 mm. Oct: 31 mm. Nov: 57 mm. Dec: 105 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 80%. Feb: 72%. Mar: 73%. Apr: 67%. May: 60%. Jun: 54%. Jul: 57%. Aug: 59%. Sep: 59%. Oct: 57%. Nov: 69%. Dec: 79%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 12 km/h . Feb: 15 km/h . Mar: 15 km/h . Apr: 16 km/h . May: 17 km/h . Jun: 17 km/h . Jul: 16 km/h . Aug: 16 km/h . Sep: 15 km/h . Oct: 13 km/h . Nov: 11 km/h . Dec: 12 km/h .
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 11°C . Feb: 12°C . Mar: 13°C . Apr: 17°C . May: 20°C . Jun: 21°C . Jul: 22°C . Aug: 23°C . Sep: 22°C . Oct: 20°C . Nov: 16°C . Dec: 12°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 3. Feb: UV 4. Mar: UV 5. Apr: UV 7. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 8. Sep: UV 6. Oct: UV 5. Nov: UV 3. Dec: UV 2.
Frequently Asked Questions
Napa has a population of approximately 80.4K.
The best months to visit Napa are May, July, August, September, October, when temperatures are pleasant and rainfall is lower.
Napa receives approximately 577mm of rainfall annually across 52 rainy days.
Napa is located in United States, in the Americas region.
Napa sits at an elevation of 6 m (20 ft) above sea level.