Letterkenny weather in August 2026

Expect daytime maximum temperatures of 63°F in Letterkenny, Ireland in August based on long-term weather averages. There are 4 hours of sunshine per day on average with 21 days with some rainfall and typically 3.9 inches of rainfall in the month.

  • 63°F maximum daytime temperature in August in Letterkenny63
    63°F max day temperature
  • 4 hours of sunshine per day
  • 21 days with some rainfall in August in Letterkenny21
    21 days with some rainfall
  • 50°F minimum night-time temperature in August in Letterkenny50
    50°F min night temperature
  • 15 hours of daylight per day in August in Letterkenny15
    15 hours of daylight per day
  • No heat & humidity in August in Letterkenny0
    No heat & humidity
  • 3.9 inches monthly rainfall in August in Letterkenny3.9
    3.9 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Letterkenny5
    5 (Moderate) UV index

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The August weather guide for Ireland (Letterkenny) 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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How warm is it in Letterkenny in August?

Daytime temperatures usually reach 63°F in Letterkenny in August, falling to 50°F at night.

How sunny is it in Letterkenny in August?

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

Does it rain in Letterkenny in August?

There are usually 21 days with some rain in Letterkenny in August and the average monthly rainfall is 3.9 inches.

Letterkenny August sunrise & sunset times

Browse the sunrise and sunset times for Letterkenny in August 2026. Select a month to view Letterkenny sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st August 2026 04:40 20:33
Sunday, 16th August 2026 05:07 20:02
Monday, 31st August 2026 05:35 19:26

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