Cardiff weather in June 2025

Expect 19°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Cardiff in June. Check more long-term weather averages for Cardiff in June before you book your next holiday to Wales in 2025/2026.

  • 19°C maximum daytime temperature in June in Cardiff19
    19°C max day temperature
  • 7 hours of sunshine per day
  • 14 days with some rainfall in June in Cardiff14
    14 days with some rainfall
  • 10°C minimum night-time temperature in June in Cardiff10
    10°C 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
  • 65 mm monthly rainfall in June in Cardiff65
    65 mm of monthly rainfall
  • UV (maximum) index 6 (High) in June in Cardiff6
    6 (High) UV index
  • 15°C sea temperature in June in Cardiff15
    15°C 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 / mm)  |  Imperial (°F / inches)

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More about Wales

How hot is it in Cardiff in June?

Daytime temperatures usually reach 19°C in Cardiff in June, falling to 10°C 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 15°C.

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 65mm.

Cardiff June sunrise & sunset times

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


Date Sunrise times Sunset times
Sunday, 1st June 2025 04:01 20:21
Sunday, 15th June 2025 03:55 20:32
Monday, 30th June 2025 04:00 20:33

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