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St Lucia weather in June 2025
Expect 30°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in St Lucia in June. Check more long-term weather averages for St Lucia in June before you book your next holiday to St Lucia in 2025/2026.
- 30°C max day temperature
30 - 8 hours of sunshine per day
- 19 days with some rainfall
19 - 24°C min night temperature
24 - 13 hours of daylight per day
13 - High heat & humidity
H - 182 mm of monthly rainfall
182 - 11+ (Extreme) UV index
11 - 28°C sea temperature
28
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Recommended for St Lucia
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.
Top St Lucia destinations
Below are average maximum temperatures at popular countries, regions and places in St Lucia in June. Select a holiday destination to see more weather parameters.
All St Lucia destinations
- Anse la Raye
- Cap Estate
- Castries
- Choc Bay
- Grand Anse
- Gros Islet
- Marigot Bay
- Morgan Bay
- Reduit Beach
- Rodney Bay
- Soufriere
- Vieux Fort
Metric (°C / mm) | Imperial (°F / inches)
More about St Lucia
How hot is it in St Lucia in June?
Daytime temperatures usually reach 30°C in Castries, St Lucia in June with high heat and humidity, falling to 24°C at night.
How sunny is it in St Lucia in June?
There are normally 8 hours of bright sunshine each day in Castries, St Lucia in June - that's 58% of daylight hours.
How warm is the sea around St Lucia in June?
The average sea temperature around Castries, St Lucia in June is 28°C.
Does it rain in St Lucia in June?
There are usually 19 days with some rain in Castries, St Lucia in June and the average monthly rainfall is 182mm.
St Lucia June sunrise & sunset times
Browse the sunrise and sunset times for St Lucia in June 2025. Select a month to view St Lucia sunrise and sunset times for the next 12 months. The St Lucia sunrise and sunset times shown below are for Castries.
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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