Caernarfon weather in March 2025

Expect 46°F daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Caernarfon in March. Check more long-term weather averages for Caernarfon in March before you book your next holiday to Wales in 2025/2026.

  • 46°F maximum daytime temperature in March in Caernarfon46
    46°F max day temperature
  • 3 hours of sunshine per day
  • 18 days with some rainfall in March in Caernarfon18
    18 days with some rainfall
  • 37°F minimum night-time temperature in March in Caernarfon37
    37°F min night temperature
  • 12 hours of daylight per day in March in Caernarfon12
    12 hours of daylight per day
  • No heat & humidity in March in Caernarfon0
    No heat & humidity
  • 5.0 inches monthly rainfall in March in Caernarfon5.0
    5.0 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in March in Caernarfon2
    2 (Low) UV index
  • 45°F sea temperature in March in Caernarfon45
    45°F sea temperature

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The March weather guide for Wales (Caernarfon) 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)  |  Imperial (°F)

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More about Wales

How warm is it in Caernarfon in March?

Daytime temperatures usually reach 46°F in Caernarfon in March, falling to 37°F at night.

How sunny is it in Caernarfon in March?

There are normally 3 hours of bright sunshine each day in Caernarfon in March - that's 29% of daylight hours.

How warm is the sea around Caernarfon in March?

The average sea temperature around Caernarfon in March is 45°F.

Does it rain in Caernarfon in March?

There are usually 18 days with some rain in Caernarfon in March and the average monthly rainfall is 5.0 inches.

Caernarfon March sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st March 2025 07:04 17:56
Sunday, 16th March 2025 06:29 18:24
Monday, 31st March 2025 05:53 18:51

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