Roscommon weather in August 2025

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

  • 66°F maximum daytime temperature in August in Roscommon66
    66°F max day temperature
  • 4 hours of sunshine per day
  • 20 days with some rainfall in August in Roscommon20
    20 days with some rainfall
  • 50°F minimum night-time temperature in August in Roscommon50
    50°F min night temperature
  • 15 hours of daylight per day in August in Roscommon15
    15 hours of daylight per day
  • No heat & humidity in August in Roscommon0
    No heat & humidity
  • 3.4 inches monthly rainfall in August in Roscommon3.4
    3.4 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Roscommon5
    5 (Moderate) UV index

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The August weather guide for Ireland (Roscommon) 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 Roscommon in August?

Daytime temperatures usually reach 66°F in Roscommon in August, falling to 50°F at night.

How sunny is it in Roscommon in August?

There are normally 4 hours of bright sunshine each day in Roscommon in August - that's 27% of daylight hours.

Does it rain in Roscommon in August?

There are usually 20 days with some rain in Roscommon in August and the average monthly rainfall is 3.4 inches.

Roscommon August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:48 20:29
Saturday, 16th August 2025 05:14 19:59
Sunday, 31st August 2025 05:40 19:25

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