Portsmouth weather in May 2020

  • 19°C maximum daytime temperature in May in Portsmouth19
    19°C max day temperature
  • 8 hours of sunshine per day
  • 12 days with some rainfall in May in Portsmouth12
    12 days with some rainfall
  • 6°C minimum night-time temperature in May in Portsmouth6
    6°C min night temperature
  • 15 hours of daylight per day in May in Portsmouth15
    15 hours of daylight per day
  • No heat & humidity in May in Portsmouth0
    No heat & humidity
  • 86 mm monthly rainfall in May in Portsmouth86
    86 mm of monthly rainfall
  • UV (maximum) index 7 (High) in May in Portsmouth7
    7 (High) UV index
  • 9°C sea temperature in May in Portsmouth9
    9°C sea temperature
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The May weather guide for Portsmouth, New Hampshire 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 Portsmouth in May?

Daytime temperatures usually reach 19°C in Portsmouth in May, falling to 6°C at night.

How sunny is it in Portsmouth in May?

There are normally 8 hours of bright sunshine each day in Portsmouth in May - that's 55% of daylight hours.

Is the sea cold around Portsmouth in May?

The average sea temperature around Portsmouth in May is 9°C.

Does it rain in Portsmouth in May?

There are usually 12 days with some rain in Portsmouth in May and the average monthly rainfall is 86mm.

Portsmouth sunrise & sunset times for May 2020

Browse the sunrise & sunset times for Portsmouth in May 2020. Select a month to view Portsmouth sunrise & sunset times for the next twelve months.


Date Sunrise times Sunset times
Friday, 1st May 2020 05:36 19:45
Saturday, 16th May 2020 05:18 20:01
Sunday, 31st May 2020 05:07 20:15
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Metric (°C / mm)  |  Imperial (°F / inches)

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Where's hot in New Hampshire in May?

Below are average maximum temperatures at popular destinations in New Hampshire in May. Select a destination to see more weather parameters.

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