Donegal weather in July 2025

Expect 17°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Donegal in July. Check more long-term weather averages for Donegal in July before you book your next holiday to Ireland in 2025/2026.

  • 17°C maximum daytime temperature in July in Donegal17
    17°C max day temperature
  • 4 hours of sunshine per day
  • 20 days with some rainfall in July in Donegal20
    20 days with some rainfall
  • 10°C minimum night-time temperature in July in Donegal10
    10°C min night temperature
  • 17 hours of daylight per day in July in Donegal17
    17 hours of daylight per day
  • No heat & humidity in July in Donegal0
    No heat & humidity
  • 100 mm monthly rainfall in July in Donegal100
    100 mm of monthly rainfall
  • UV (maximum) index 6 (High) in July in Donegal6
    6 (High) UV index
  • 15°C sea temperature in July in Donegal15
    15°C sea temperature

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The July weather guide for Ireland (Donegal) 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 warm is it in Donegal in July?

Daytime temperatures usually reach 17°C in Donegal in July, falling to 10°C at night.

How sunny is it in Donegal in July?

There are normally 4 hours of bright sunshine each day in Donegal in July - that's 24% of daylight hours.

How warm is the sea around Donegal in July?

The average sea temperature around Donegal in July is 15°C.

Does it rain in Donegal in July?

There are usually 20 days with some rain in Donegal in July and the average monthly rainfall is 100mm.

Donegal July sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 04:01 21:12
Wednesday, 16th July 2025 04:18 20:59
Thursday, 31st July 2025 04:42 20:35

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