Cardiff weather in June 2026

Expect daytime maximum temperatures of 66°F in Cardiff, Wales in June based on long-term weather averages. There are 7 hours of sunshine per day on average with 14 days with some rainfall and typically 2.6 inches of rainfall in the month.

  • 66°F maximum daytime temperature in June in Cardiff66
    66°F max day temperature
  • 7 hours of sunshine per day
  • 14 days with some rainfall in June in Cardiff14
    14 days with some rainfall
  • 50°F minimum night-time temperature in June in Cardiff50
    50°F min night temperature
  • 17 hours of daylight per day in June in Cardiff17
    17 hours of daylight per day
  • No heat & humidity in June in Cardiff0
    No heat & humidity
  • 2.6 inches monthly rainfall in June in Cardiff2.6
    2.6 inches of monthly rainfall
  • UV (maximum) index 6 (High) in June in Cardiff6
    6 (High) UV index
  • 59°F sea temperature in June in Cardiff59
    59°F sea temperature

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The June weather guide for Wales (Cardiff) 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 Cardiff in June?

Daytime temperatures usually reach 66°F in Cardiff in June, falling to 50°F at night.

How sunny is it in Cardiff in June?

There are normally 7 hours of bright sunshine each day in Cardiff in June - that's 41% of daylight hours.

How warm is the sea around Cardiff in June?

The average sea temperature around Cardiff in June is 59°F.

Does it rain in Cardiff in June?

There are usually 14 days with some rain in Cardiff in June and the average monthly rainfall is 2.6 inches.

Cardiff June sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st June 2026 04:01 20:20
Monday, 15th June 2026 03:55 20:31
Tuesday, 30th June 2026 03:59 20:33

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