St Martin weather in January 2026

Expect daytime maximum temperatures of 29°C in St Martin 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°C maximum daytime temperature in January in St Martin29
    29°C max day temperature
  • 8 hours of sunshine per day
  • 17 days with some rainfall in January in St Martin17
    17 days with some rainfall
  • 23°C minimum night-time temperature in January in St Martin23
    23°C min night temperature
  • 11 hours of daylight per day in January in St Martin11
    11 hours of daylight per day
  • Moderate heat & humidity in January in St MartinM
    Moderate heat & humidity
  • 63 mm monthly rainfall in January in St Martin63
    63 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in January in St Martin8
    8 (Very High) UV index
  • 26°C sea temperature in January in St Martin26
    26°C sea temperature

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The January weather guide for St Martin 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 Martin in January?

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

How sunny is it in St Martin in January?

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

How warm is the sea around St Martin in January?

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

Does it rain in St Martin in January?

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

St Martin January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 06:44 17:48
Friday, 16th January 2026 06:47 17:58
Saturday, 31st January 2026 06:45 18:06

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