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Napa weather in August 2021
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- 28°C max day temperature
28 - 11 hours of sunshine per day
- 1 day with some rainfall
1 - 12°C min night temperature
12 - 14 hours of daylight per day
14 - Moderate heat & humidity
M - 3 mm of monthly rainfall
3 - 9 (Very High) UV index
9
Recommended for California
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
The August weather guide for Napa, California shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
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How hot is it in Napa in August?
Daytime temperatures usually reach 28°C in Napa in August with moderate heat and humidity, falling to 12°C at night.
How sunny is it in Napa in August?
There are normally 11 hours of bright sunshine each day in Napa in August - that's 79% of daylight hours.
Does it ever rain in Napa in August?
There is usually 1 day with some rain in Napa in August and the average monthly rainfall is 3mm.
Napa sunrise & sunset times for August 2021
Browse the sunrise & sunset times for Napa in August 2021. Select a month to view Napa sunrise & sunset times for the next twelve months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Sunday, 1st August 2021 | 06:12 | 20:19 |
| Monday, 16th August 2021 | 06:25 | 20:01 |
| Tuesday, 31st August 2021 | 06:38 | 19:40 |
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Metric (°C / mm) | Imperial (°F / inches)
Discover more about California
Where is hot in California in August for 2021/2022?
Below are average maximum temperatures at popular destinations in California in August. Select a destination to see more weather parameters.
- Death Valley
- Palm Springs
- Los Angeles
- Beverly Hills
- Napa
- Santa Monica
- San Diego
- Santa Barbara
- Lake Tahoe
- Big Sur
- Yosemite
- San Francisco
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