Holyhead weather in August 2025

Expect 66°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Holyhead in August. Check more long-term weather averages for Holyhead in August before you book your next holiday to Wales in 2025/2026.

  • 66°F maximum daytime temperature in August in Holyhead66
    66°F max day temperature
  • 6 hours of sunshine per day
  • 16 days with some rainfall in August in Holyhead16
    16 days with some rainfall
  • 54°F minimum night-time temperature in August in Holyhead54
    54°F min night temperature
  • 15 hours of daylight per day in August in Holyhead15
    15 hours of daylight per day
  • No heat & humidity in August in Holyhead0
    No heat & humidity
  • 3.0 inches monthly rainfall in August in Holyhead3.0
    3.0 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Holyhead5
    5 (Moderate) UV index
  • 59°F sea temperature in August in Holyhead59
    59°F sea temperature

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The August weather guide for Wales (Holyhead) 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 Wales

How hot is it in Holyhead in August?

Daytime temperatures usually reach 66°F in Holyhead in August, falling to 54°F at night.

How sunny is it in Holyhead in August?

There are normally 6 hours of bright sunshine each day in Holyhead in August - that's 39% of daylight hours.

How warm is the sea around Holyhead in August?

The average sea temperature around Holyhead in August is 59°F.

Does it rain in Holyhead in August?

There are usually 16 days with some rain in Holyhead in August and the average monthly rainfall is 3.0 inches.

Holyhead August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:35 20:13
Saturday, 16th August 2025 05:01 19:44
Sunday, 31st August 2025 05:27 19:10

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