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St Lucia weather in October 2025
Expect daytime maximum temperatures of 86°F in St Lucia in October and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 18 days with some rainfall and typically 10.6 inches of rainfall in the month.
- 86°F max day temperature
86 - 7 hours of sunshine per day
- 18 days with some rainfall
18 - 75°F min night temperature
75 - 12 hours of daylight per day
12 - High heat & humidity
H - 10.6 inches of monthly rainfall
10.6 - 11 (Extreme) UV index
11 - 84°F sea temperature
84
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The October 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 October. 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) | Imperial (°F)
More about St Lucia
How hot is it in St Lucia in October?
Daytime temperatures usually reach 86°F in Castries, St Lucia in October with high heat and humidity, falling to 75°F at night.
How sunny is it in St Lucia in October?
There are normally 7 hours of bright sunshine each day in Castries, St Lucia in October - that's 63% of daylight hours.
How warm is the sea around St Lucia in October?
The average sea temperature around Castries, St Lucia in October is 84°F.
Does it rain in St Lucia in October?
There are usually 18 days with some rain in Castries, St Lucia in October and the average monthly rainfall is 10.6 inches.
What is the chance of a hurricane in St Lucia in October?
On average less than 1 day in October in Castries, St Lucia is likely to be affected by the passage of one or more tropical storms.
St Lucia October sunrise & sunset times
Browse the sunrise and sunset times for St Lucia in October 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 |
|---|---|---|
| Wednesday, 1st October 2025 | 05:54 | 17:53 |
| Thursday, 16th October 2025 | 05:55 | 17:44 |
| Friday, 31st October 2025 | 05:59 | 17:36 |
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