Galway weather in August 2025

Expect 66°F daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Galway in August. Check more long-term weather averages for Galway in August before you book your next holiday to Ireland in 2025/2026.

  • 66°F maximum daytime temperature in August in Galway66
    66°F max day temperature
  • 4 hours of sunshine per day
  • 20 days with some rainfall in August in Galway20
    20 days with some rainfall
  • 52°F minimum night-time temperature in August in Galway52
    52°F min night temperature
  • 15 hours of daylight per day in August in Galway15
    15 hours of daylight per day
  • No heat & humidity in August in Galway0
    No heat & humidity
  • 3.5 inches monthly rainfall in August in Galway3.5
    3.5 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Galway5
    5 (Moderate) UV index
  • 61°F sea temperature in August in Galway61
    61°F sea temperature

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The August weather guide for Ireland (Galway) 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 Ireland

How hot is it in Galway in August?

Daytime temperatures usually reach 66°F in Galway in August, falling to 52°F at night.

How sunny is it in Galway in August?

There are normally 4 hours of bright sunshine each day in Galway in August - that's 28% of daylight hours.

How warm is the sea around Galway in August?

The average sea temperature around Galway in August is 61°F.

Does it rain in Galway in August?

There are usually 20 days with some rain in Galway in August and the average monthly rainfall is 3.5 inches.

Galway August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:53 20:31
Saturday, 16th August 2025 05:18 20:01
Sunday, 31st August 2025 05:44 19:27

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