Napa weather in May 2019

  • 23°C maximum daytime temperature in May in Napa23
    23°C max day temperature
  • 11 hours of sunshine per day
  • 3 days with some rainfall in May in Napa3
    3 days with some rainfall
  • 8°C minimum night-time temperature in May in Napa8
    8°C min night temperature
  • 14 hours of daylight per day in May in Napa14
    14 hours of daylight per day
  • No heat & humidity in May in Napa0
    No heat & humidity
  • 14 mm monthly rainfall in May in Napa14
    14 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in Napa8
    8 (Very High) UV index

Going to Napa? Find the best month to visit Napa based on the weather.

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Expect 23°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in Napa in May. Check more long-term weather averages for Napa in May before you book your next holiday to California in 2019/2020.

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More about Napa

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The May 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.

Metric (°C / mm)  |  Imperial (°F / inches)

Guide to Napa weather in May

The average maximum daytime temperature in Napa in May is a warm 23°C (73°F). The average night-time temperature is usually a cool 8°C (46°F). There are usually 11 hours of bright sunshine each day, which represents 80% of the 14 hours of daylight.

Expect 14mm (0.6 inches) of rainfall across the whole of May with 3 days with some rain falling. Maximum UV levels will be very high (8 UV index) at midday when the skies are clear.

Napa sunrise & sunset times for May 2019

Browse the sunrise & sunset times for Napa in May 2019. Select a month to view Napa sunrise & sunset times for the next twelve months.


Date Sunrise times Sunset times
Wednesday, 1st May 2019 06:13 20:01
Thursday, 2nd May 2019 06:11 20:01
Friday, 3rd May 2019 06:10 20:02
Saturday, 4th May 2019 06:09 20:03
Sunday, 5th May 2019 06:08 20:04
Monday, 6th May 2019 06:07 20:05
Tuesday, 7th May 2019 06:06 20:06
Wednesday, 8th May 2019 06:05 20:07
Thursday, 9th May 2019 06:04 20:08
Friday, 10th May 2019 06:03 20:09
Saturday, 11th May 2019 06:02 20:10
Sunday, 12th May 2019 06:01 20:11
Monday, 13th May 2019 06:00 20:12
Tuesday, 14th May 2019 05:59 20:12
Wednesday, 15th May 2019 05:58 20:13
Thursday, 16th May 2019 05:57 20:14
Friday, 17th May 2019 05:57 20:15
Saturday, 18th May 2019 05:56 20:16
Sunday, 19th May 2019 05:55 20:17
Monday, 20th May 2019 05:54 20:18
Tuesday, 21st May 2019 05:53 20:19
Wednesday, 22nd May 2019 05:53 20:19
Thursday, 23rd May 2019 05:52 20:20
Friday, 24th May 2019 05:52 20:21
Saturday, 25th May 2019 05:51 20:22
Sunday, 26th May 2019 05:50 20:23
Monday, 27th May 2019 05:50 20:23
Tuesday, 28th May 2019 05:49 20:24
Wednesday, 29th May 2019 05:49 20:25
Thursday, 30th May 2019 05:48 20:26
Friday, 31st May 2019 05:48 20:26
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Below are average maximum temperatures at popular destinations in California in May. Select a destination to see more weather parameters.

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