Portsmouth weather in May 2019

  • 30°C maximum daytime temperature in May in Portsmouth30
    30°C max day temperature
  • 8 hours of sunshine per day
  • 17 days with some rainfall in May in Portsmouth17
    17 days with some rainfall
  • 23°C minimum night-time temperature in May in Portsmouth23
    23°C min night temperature
  • 13 hours of daylight per day in May in Portsmouth13
    13 hours of daylight per day
  • High heat & humidity in May in PortsmouthH
    High heat & humidity
  • 177 mm monthly rainfall in May in Portsmouth177
    177 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Portsmouth11
    11+ (Extreme) UV index
  • 27°C sea temperature in May in Portsmouth27
    27°C sea temperature

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

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Expect 30°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Portsmouth in May. Check more long-term weather averages for Portsmouth in May before you book your next holiday to Dominica in 2019/2020.

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More about Portsmouth

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The May weather guide for Portsmouth, Dominica 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 Portsmouth weather in May

The average maximum daytime temperature in Portsmouth in May is a hot 30°C (86°F) with high heat & humidity. The average night-time temperature is usually a warm 23°C (73°F). There are usually 8 hours of bright sunshine each day, which represents 61% of the 13 hours of daylight.

Expect 177mm (7.0 inches) of rainfall across the whole of May with 17 days with some rain falling. Maximum UV levels will be extreme (11+ UV index) at midday when the skies are clear.

The average sea temperature in and around Portsmouth in May is 27°C (81°F).

Portsmouth sunrise & sunset times for May 2019

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st May 2019 05:42 18:24
Thursday, 2nd May 2019 05:42 18:24
Friday, 3rd May 2019 05:41 18:24
Saturday, 4th May 2019 05:41 18:25
Sunday, 5th May 2019 05:40 18:25
Monday, 6th May 2019 05:40 18:25
Tuesday, 7th May 2019 05:39 18:25
Wednesday, 8th May 2019 05:39 18:26
Thursday, 9th May 2019 05:39 18:26
Friday, 10th May 2019 05:38 18:26
Saturday, 11th May 2019 05:38 18:27
Sunday, 12th May 2019 05:38 18:27
Monday, 13th May 2019 05:37 18:27
Tuesday, 14th May 2019 05:37 18:28
Wednesday, 15th May 2019 05:37 18:28
Thursday, 16th May 2019 05:36 18:28
Friday, 17th May 2019 05:36 18:28
Saturday, 18th May 2019 05:36 18:29
Sunday, 19th May 2019 05:36 18:29
Monday, 20th May 2019 05:35 18:29
Tuesday, 21st May 2019 05:35 18:30
Wednesday, 22nd May 2019 05:35 18:30
Thursday, 23rd May 2019 05:35 18:30
Friday, 24th May 2019 05:35 18:31
Saturday, 25th May 2019 05:35 18:31
Sunday, 26th May 2019 05:34 18:31
Monday, 27th May 2019 05:34 18:32
Tuesday, 28th May 2019 05:34 18:32
Wednesday, 29th May 2019 05:34 18:32
Thursday, 30th May 2019 05:34 18:33
Friday, 31st May 2019 05:34 18:33
  • Save up to 10% on cruises to Dominica
  • Book Marella Cruises online with TUI
  • Travel before 31st October 2020 (inclusive)

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