Sligo weather in August 2025

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

  • 18°C maximum daytime temperature in August in Sligo18
    18°C max day temperature
  • 4 hours of sunshine per day
  • 20 days with some rainfall in August in Sligo20
    20 days with some rainfall
  • 10°C minimum night-time temperature in August in Sligo10
    10°C min night temperature
  • 15 hours of daylight per day in August in Sligo15
    15 hours of daylight per day
  • No heat & humidity in August in Sligo0
    No heat & humidity
  • 105 mm monthly rainfall in August in Sligo105
    105 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Sligo5
    5 (Moderate) UV index
  • 16°C sea temperature in August in Sligo16
    16°C sea temperature

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The August weather guide for Ireland (Sligo) 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 hot is it in Sligo in August?

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

How sunny is it in Sligo in August?

There are normally 4 hours of bright sunshine each day in Sligo in August - that's 26% of daylight hours.

How warm is the sea around Sligo in August?

The average sea temperature around Sligo in August is 16°C.

Does it rain in Sligo in August?

There are usually 20 days with some rain in Sligo in August and the average monthly rainfall is 105mm.

Sligo August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:46 20:33
Saturday, 16th August 2025 05:13 20:02
Sunday, 31st August 2025 05:40 19:27

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