Castlebar weather in October 2025

Expect daytime maximum temperatures of 13°C in Castlebar, Ireland in October based on long-term weather averages. There are 2 hours of sunshine per day on average with 23 days with some rainfall and typically 131 mm of rainfall in the month.

  • 13°C maximum daytime temperature in October in Castlebar13
    13°C max day temperature
  • 2 hours of sunshine per day
  • 23 days with some rainfall in October in Castlebar23
    23 days with some rainfall
  • 7°C minimum night-time temperature in October in Castlebar7
    7°C min night temperature
  • 11 hours of daylight per day in October in Castlebar11
    11 hours of daylight per day
  • No heat & humidity in October in Castlebar0
    No heat & humidity
  • 131 mm monthly rainfall in October in Castlebar131
    131 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in October in Castlebar2
    2 (Low) UV index

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The October weather guide for Ireland (Castlebar) 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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How warm is it in Castlebar in October?

Daytime temperatures usually reach 14°C in Castlebar in October, falling to 8°C at night.

How sunny is it in Castlebar in October?

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

How warm is the sea around Castlebar in October?

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

Does it rain in Castlebar in October?

There are usually 16 days with some rain in Castlebar in October and the average monthly rainfall is 67mm.

Castlebar October sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:39 18:13
Thursday, 16th October 2025 07:07 17:37
Friday, 31st October 2025 07:36 17:05

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