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St Lucia weather in December 2024
Expect 29°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in St Lucia in December. Check more long-term weather averages for St Lucia in December before you book your next holiday to St Lucia in 2024/2025.
- 29°C max day temperature
29 - 8 hours of sunshine per day
- 18 days with some rainfall
18 - 23°C min night temperature
23 - 11 hours of daylight per day
11 - Moderate heat & humidity
M - 149 mm of monthly rainfall
149 - 8 (Very High) UV index
8 - 28°C sea temperature
28
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Recommended for St Lucia
The December 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 December. 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 December?
Daytime temperatures usually reach 29°C in Castries, St Lucia in December with moderate heat and humidity, falling to 23°C at night.
How sunny is it in St Lucia in December?
There are normally 8 hours of bright sunshine each day in Castries, St Lucia in December - that's 68% of daylight hours.
How warm is the sea around St Lucia in December?
The average sea temperature around Castries, St Lucia in December is 28°C.
Does it rain in St Lucia in December?
There are usually 18 days with some rain in Castries, St Lucia in December and the average monthly rainfall is 149mm.
St Lucia December sunrise & sunset times
Browse the sunrise and sunset times for St Lucia in December 2024. 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 December 2024 | 06:12 | 17:34 |
| Monday, 16th December 2024 | 06:21 | 17:39 |
| Tuesday, 31st December 2024 | 06:28 | 17:47 |
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