St Barthelemy weather in January 2026

Q: How hot is it in St Barthelemy in January?

Daytime temperatures usually reach 29°C in St Barthelemy in January with moderate heat and humidity, falling to 23°C at night.

Q: How sunny is it in St Barthelemy in January?

There are normally 8 hours of bright sunshine each day in St Barthelemy in January - that's 75% of daylight hours.

Q: How warm is the sea around St Barthelemy in January?

The average sea temperature around St Barthelemy in January is 26°C.

Q: Does it rain in St Barthelemy in January?

There are usually 17 days with some rain in St Barthelemy in January and the average monthly rainfall is 63mm.

Expect daytime maximum temperatures of 29°C in St Barthelemy in January based on long-term weather averages. There are 8 hours of sunshine per day on average with 17 days with some rainfall and typically 63 mm of rainfall in the month.

29
29°C max day temperature
8
8 hours of sunshine per day
17
17 days with some rainfall
23
23°C min night temperature
11
11 hours of daylight per day
M
Moderate heat & humidity
63
63 mm of monthly rainfall
8
8 (Very High) UV index
26
26°C sea temperature

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The January weather guide for St Barthelemy 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)

How hot is it in St Barthelemy in January?

Daytime temperatures usually reach 29°C in St Barthelemy in January with moderate heat and humidity, falling to 23°C at night.

How sunny is it in St Barthelemy in January?

There are normally 8 hours of bright sunshine each day in St Barthelemy in January - that's 75% of daylight hours.

How warm is the sea around St Barthelemy in January?

The average sea temperature around St Barthelemy in January is 26°C.

Does it rain in St Barthelemy in January?

There are usually 17 days with some rain in St Barthelemy in January and the average monthly rainfall is 63mm.

St Barthelemy January sunrise & sunset times

Browse the sunrise and sunset times for St Barthelemy in January 2026. Select a month to view St Barthelemy sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec