Donegal weather in October 2025

Expect 12°C daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Donegal in October. Check more long-term weather averages for Donegal in October before you book your next holiday to Ireland in 2025/2026.

  • 12°C maximum daytime temperature in October in Donegal12
    12°C max day temperature
  • 3 hours of sunshine per day
  • 23 days with some rainfall in October in Donegal23
    23 days with some rainfall
  • 6°C minimum night-time temperature in October in Donegal6
    6°C min night temperature
  • 10 hours of daylight per day in October in Donegal10
    10 hours of daylight per day
  • No heat & humidity in October in Donegal0
    No heat & humidity
  • 157 mm monthly rainfall in October in Donegal157
    157 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in October in Donegal2
    2 (Low) UV index
  • 13°C sea temperature in October in Donegal13
    13°C sea temperature

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The October weather guide for Ireland (Donegal) 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 Ireland

How warm is it in Donegal in October?

Daytime temperatures usually reach 12°C in Donegal in October, falling to 6°C at night.

How sunny is it in Donegal in October?

There are normally 3 hours of bright sunshine each day in Donegal in October - that's 24% of daylight hours.

How warm is the sea around Donegal in October?

The average sea temperature around Donegal in October is 13°C.

Does it rain in Donegal in October?

There are usually 23 days with some rain in Donegal in October and the average monthly rainfall is 157mm.

Donegal October sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:35 18:08
Thursday, 16th October 2025 07:04 17:31
Friday, 31st October 2025 07:33 16:58

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