Portsmouth weather in March 2026

Expect daytime maximum temperatures of 10°C in Portsmouth, England in March based on long-term weather averages. There are 4 hours of sunshine per day on average with 14 days with some rainfall and typically 60 mm of rainfall in the month.

  • 10°C maximum daytime temperature in March in Portsmouth10
    10°C max day temperature
  • 4 hours of sunshine per day
  • 14 days with some rainfall in March in Portsmouth14
    14 days with some rainfall
  • 4°C minimum night-time temperature in March in Portsmouth4
    4°C min night temperature
  • 12 hours of daylight per day in March in Portsmouth12
    12 hours of daylight per day
  • No heat & humidity in March in Portsmouth0
    No heat & humidity
  • 60 mm monthly rainfall in March in Portsmouth60
    60 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in March in Portsmouth3
    3 (Moderate) UV index
  • 7°C sea temperature in March in Portsmouth7
    7°C sea temperature

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The March weather guide for England (Portsmouth) 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)

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More about England

How warm is it in Portsmouth in March?

Daytime temperatures usually reach 10°C in Portsmouth in March, falling to 4°C at night.

How sunny is it in Portsmouth in March?

There are normally 4 hours of bright sunshine each day in Portsmouth in March - that's 35% of daylight hours.

Is the sea cold around Portsmouth in March?

The average sea temperature around Portsmouth in March is 7°C.

Does it rain in Portsmouth in March?

There are usually 14 days with some rain in Portsmouth in March and the average monthly rainfall is 60mm.

Portsmouth March sunrise & sunset times

Browse the sunrise and sunset times for Portsmouth in March 2026. Select a month to view Portsmouth sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st March 2026 06:49 17:45
Monday, 16th March 2026 06:16 18:11
Tuesday, 31st March 2026 05:43 18:35

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