Castries weather in June 2025

Expect 30°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Castries in June. Check more long-term weather averages for Castries in June before you book your next holiday to St Lucia in 2025/2026.

  • 30°C maximum daytime temperature in June in Castries30
    30°C max day temperature
  • 8 hours of sunshine per day
  • 19 days with some rainfall in June in Castries19
    19 days with some rainfall
  • 24°C minimum night-time temperature in June in Castries24
    24°C min night temperature
  • 13 hours of daylight per day in June in Castries13
    13 hours of daylight per day
  • High heat & humidity in June in CastriesH
    High heat & humidity
  • 182 mm monthly rainfall in June in Castries182
    182 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in June in Castries11
    11+ (Extreme) UV index
  • 28°C sea temperature in June in Castries28
    28°C sea temperature

More about Castries

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The June weather guide for St Lucia (Castries) 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 St Lucia

How hot is it in Castries in June?

Daytime temperatures usually reach 30°C in Castries in June with high heat and humidity, falling to 24°C at night.

How sunny is it in Castries in June?

There are normally 8 hours of bright sunshine each day in Castries in June - that's 58% of daylight hours.

How warm is the sea around Castries in June?

The average sea temperature around Castries in June is 28°C.

Does it rain in Castries in June?

There are usually 19 days with some rain in Castries in June and the average monthly rainfall is 182mm.

Castries June sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st June 2025 05:35 18:29
Sunday, 15th June 2025 05:36 18:33
Monday, 30th June 2025 05:40 18:36

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