Napa weather in August 2024
Expect 28°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in Napa in August. Check more long-term weather averages for Napa in August before you book your next holiday to California in 2024/2025.
- 2828°C max day temperature
- 11 day with some rainfall
- 1212°C min night temperature
- 1414 hours of daylight per day
- MModerate heat & humidity
- 33 mm of monthly rainfall
- 99 (Very High) UV index
The August weather guide for California (Napa) 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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Napa by month
Metric (°C / mm) | Imperial (°F / inches)
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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 August sunrise & sunset times
Browse the sunrise and sunset times for Napa in August 2024. Select a month to view Napa sunrise and sunset times for the next 12 months.
|Date||Sunrise times||Sunset times|
|Thursday, 1st August 2024||06:12||20:18|
|Friday, 16th August 2024||06:25||20:01|
|Saturday, 31st August 2024||06:38||19:39|
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