St Lucia weather in January 2026

Expect daytime maximum temperatures of 29°C in St Lucia, South Africa in January and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 12 days with some rainfall and typically 148 mm of rainfall in the month.

  • 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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More about South Africa

How hot is it in St Lucia in January?

Daytime temperatures usually reach 25°C in St Lucia in January with low heat and humidity, falling to 15°C at night.

How sunny is it in St Lucia in January?

There are normally 11 hours of bright sunshine each day in St Lucia in January - that's 77% of daylight hours.

How warm is the sea around St Lucia in January?

The average sea temperature around St Lucia in January is 19°C.

Does it rain in St Lucia in January?

There are usually 5 days with some rain in St Lucia in January and the average monthly rainfall is 32mm.

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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