Caernarfon weather in July 2025

Expect 64°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Caernarfon in July. Check more long-term weather averages for Caernarfon in July before you book your next holiday to Wales in 2025/2026.

  • 64°F maximum daytime temperature in July in Caernarfon64
    64°F max day temperature
  • 6 hours of sunshine per day
  • 14 days with some rainfall in July in Caernarfon14
    14 days with some rainfall
  • 52°F minimum night-time temperature in July in Caernarfon52
    52°F min night temperature
  • 16 hours of daylight per day in July in Caernarfon16
    16 hours of daylight per day
  • No heat & humidity in July in Caernarfon0
    No heat & humidity
  • 3.9 inches monthly rainfall in July in Caernarfon3.9
    3.9 inches of monthly rainfall
  • UV (maximum) index 6 (High) in July in Caernarfon6
    6 (High) UV index
  • 59°F sea temperature in July in Caernarfon59
    59°F sea temperature

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The July weather guide for Wales (Caernarfon) 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 Caernarfon in July?

Daytime temperatures usually reach 64°F in Caernarfon in July, falling to 52°F at night.

How sunny is it in Caernarfon in July?

There are normally 6 hours of bright sunshine each day in Caernarfon in July - that's 34% of daylight hours.

How warm is the sea around Caernarfon in July?

The average sea temperature around Caernarfon in July is 59°F.

Does it rain in Caernarfon in July?

There are usually 14 days with some rain in Caernarfon in July and the average monthly rainfall is 3.9 inches.

Caernarfon July sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 03:55 20:47
Wednesday, 16th July 2025 04:11 20:35
Thursday, 31st July 2025 04:33 20:13

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