Swansea weather in March 2025

Expect 9°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Swansea in March. Check more long-term weather averages for Swansea in March before you book your next holiday to Wales in 2025/2026.

  • 9°C maximum daytime temperature in March in Swansea9
    9°C max day temperature
  • 4 hours of sunshine per day
  • 18 days with some rainfall in March in Swansea18
    18 days with some rainfall
  • 4°C minimum night-time temperature in March in Swansea4
    4°C min night temperature
  • 12 hours of daylight per day in March in Swansea12
    12 hours of daylight per day
  • No heat & humidity in March in Swansea0
    No heat & humidity
  • 96 mm monthly rainfall in March in Swansea96
    96 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in March in Swansea2
    2 (Low) UV index
  • 8°C sea temperature in March in Swansea8
    8°C sea temperature

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The March weather guide for Wales (Swansea) 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 Wales

How warm is it in Swansea in March?

Daytime temperatures usually reach 9°C in Swansea in March, falling to 4°C at night.

How sunny is it in Swansea in March?

There are normally 4 hours of bright sunshine each day in Swansea in March - that's 30% of daylight hours.

Is the sea cold around Swansea in March?

The average sea temperature around Swansea in March is 8°C.

Does it rain in Swansea in March?

There are usually 18 days with some rain in Swansea in March and the average monthly rainfall is 96mm.

Swansea March sunrise & sunset times

Browse the sunrise and sunset times for Swansea in March 2025. Select a month to view Swansea sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st March 2025 07:01 17:56
Sunday, 16th March 2025 06:27 18:22
Monday, 31st March 2025 05:53 18:48

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