Caernarfon weather in October 2025

Expect 14°C 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.

  • 14°C maximum daytime temperature in October in Caernarfon14
    14°C max day temperature
  • 3 hours of sunshine per day
  • 19 days with some rainfall in October in Caernarfon19
    19 days with some rainfall
  • 8°C minimum night-time temperature in October in Caernarfon8
    8°C 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
  • 174 mm monthly rainfall in October in Caernarfon174
    174 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in October in Caernarfon2
    2 (Low) UV index
  • 14°C sea temperature in October in Caernarfon14
    14°C 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 / mm)  |  Imperial (°F / inches)

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More about Wales

How warm is it in Caernarfon in October?

Daytime temperatures usually reach 14°C in Caernarfon in October, falling to 8°C 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 14°C.

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 174mm.

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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