St Lucia weather in January 2026

Expect 29°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in St Lucia in January based on long-term weather averages. There is usually 12 days with some rainfall and 148 mm of average monthly rainfall in January.

  • 29°C maximum daytime temperature in January in St Lucia29
    29°C max day temperature
  • 8 hours of sunshine per day
  • 12 days with some rainfall in January in St Lucia12
    12 days with some rainfall
  • 21°C minimum night-time temperature in January in St Lucia21
    21°C min night temperature
  • 14 hours of daylight per day in January in St Lucia14
    14 hours of daylight per day
  • High heat & humidity in January in St LuciaH
    High heat & humidity
  • 148 mm monthly rainfall in January in St Lucia148
    148 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in January in St Lucia11
    11+ (Extreme) UV index
  • 26°C sea temperature in January in St Lucia26
    26°C sea temperature

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The January weather guide for South Africa (St Lucia) 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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How hot is it in St Lucia in January?

Daytime temperatures usually reach 29°C in St Lucia in January with high heat and humidity, falling to 21°C at night.

How sunny is it in St Lucia in January?

There are normally 8 hours of bright sunshine each day in St Lucia in January - that's 58% of daylight hours.

How warm is the sea around St Lucia in January?

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

Does it rain in St Lucia in January?

There are usually 12 days with some rain in St Lucia in January and the average monthly rainfall is 148mm.

St Lucia January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 04:57 18:51
Friday, 16th January 2026 05:08 18:52
Saturday, 31st January 2026 05:21 18:46

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