Coleraine weather in August 2025

Expect 18°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Coleraine in August. Check more long-term weather averages for Coleraine in August before you book your next holiday to Northern Ireland in 2025/2026.

  • 18°C maximum daytime temperature in August in Coleraine18
    18°C max day temperature
  • 4 hours of sunshine per day
  • 19 days with some rainfall in August in Coleraine19
    19 days with some rainfall
  • 10°C minimum night-time temperature in August in Coleraine10
    10°C min night temperature
  • 15 hours of daylight per day in August in Coleraine15
    15 hours of daylight per day
  • No heat & humidity in August in Coleraine0
    No heat & humidity
  • 85 mm monthly rainfall in August in Coleraine85
    85 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Coleraine5
    5 (Moderate) UV index

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The August weather guide for Northern Ireland (Coleraine) 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 the UK

How hot is it in Coleraine in August?

Daytime temperatures usually reach 18°C in Coleraine in August, falling to 10°C at night.

How sunny is it in Coleraine in August?

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

Does it rain in Coleraine in August?

There are usually 19 days with some rain in Coleraine in August and the average monthly rainfall is 85mm.

Coleraine August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:35 20:30
Saturday, 16th August 2025 05:03 19:58
Sunday, 31st August 2025 05:31 19:21

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