Caernarfon weather in October 2025

Expect 57°F daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Caernarfon in October. Check more long-term weather averages for Caernarfon in October before you book your next holiday to Wales in 2025/2026.

  • 57°F maximum daytime temperature in October in Caernarfon57
    57°F max day temperature
  • 3 hours of sunshine per day
  • 19 days with some rainfall in October in Caernarfon19
    19 days with some rainfall
  • 46°F minimum night-time temperature in October in Caernarfon46
    46°F min night temperature
  • 11 hours of daylight per day in October in Caernarfon11
    11 hours of daylight per day
  • No heat & humidity in October in Caernarfon0
    No heat & humidity
  • 6.9 inches monthly rainfall in October in Caernarfon6.9
    6.9 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in October in Caernarfon2
    2 (Low) UV index
  • 57°F sea temperature in October in Caernarfon57
    57°F sea temperature

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The October 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 October?

Daytime temperatures usually reach 57°F in Caernarfon in October, falling to 46°F at night.

How sunny is it in Caernarfon in October?

There are normally 3 hours of bright sunshine each day in Caernarfon in October - that's 28% of daylight hours.

How warm is the sea around Caernarfon in October?

The average sea temperature around Caernarfon in October is 57°F.

Does it rain in Caernarfon in October?

There are usually 19 days with some rain in Caernarfon in October and the average monthly rainfall is 6.9 inches.

Caernarfon October sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:19 17:54
Thursday, 16th October 2025 06:46 17:19
Friday, 31st October 2025 07:14 16:47

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