Reunion weather in January 2025

Expect 27°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Reunion in January. Check more long-term weather averages for Reunion in January before you book your next holiday to Reunion in 2025/2026.

  • 27°C maximum daytime temperature in January in Reunion (Saint-Denis)27
    27°C max day temperature
  • 7 hours of sunshine per day
  • 18 days with some rainfall in January in Reunion (Saint-Denis)18
    18 days with some rainfall
  • 20°C minimum night-time temperature in January in Reunion (Saint-Denis)20
    20°C min night temperature
  • 13 hours of daylight per day in January in Reunion (Saint-Denis)13
    13 hours of daylight per day
  • High heat & humidity in January in Reunion (Saint-Denis)H
    High heat & humidity
  • 254 mm monthly rainfall in January in Reunion (Saint-Denis)254
    254 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in January in Reunion (Saint-Denis)11
    11+ (Extreme) UV index
  • 27°C sea temperature in January in Reunion (Saint-Denis)27
    27°C sea temperature

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The January weather guide for Reunion (Saint-Denis) 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 Reunion destinations

Below are average maximum temperatures at popular countries, regions and places in Reunion in January. Select a holiday destination to see more weather parameters.

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Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Reunion in January?

Daytime temperatures usually reach 27°C in Saint-Denis, Reunion in January with high heat and humidity, falling to 20°C at night.

How sunny is it in Reunion in January?

There are normally 7 hours of bright sunshine each day in Saint-Denis, Reunion in January - that's 54% of daylight hours.

How warm is the sea around Reunion in January?

The average sea temperature around Saint-Denis, Reunion in January is 27°C.

Does it rain in Reunion in January?

There are usually 18 days with some rain in Saint-Denis, Reunion in January and the average monthly rainfall is 254mm.

What is the chance of a cyclone in Reunion in January?

On average 1.6 days in January in Saint-Denis, Reunion are likely to be affected by the passage of one or more tropical storms.

Reunion January sunrise & sunset times

Browse the sunrise and sunset times for Reunion in January 2025. Select a month to view Reunion sunrise and sunset times for the next 12 months. The Reunion sunrise and sunset times shown below are for Saint-Denis.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 05:41 19:03
Thursday, 16th January 2025 05:51 19:05
Friday, 31st January 2025 06:00 19:03

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