Mirissa Beach weather in January 2025

Expect 30°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Mirissa Beach in January. Check more long-term weather averages for Mirissa Beach in January before you book your next holiday to Sri Lanka in 2025/2026.

  • 30°C maximum daytime temperature in January in Mirissa Beach30
    30°C max day temperature
  • 7 hours of sunshine per day
  • 5 days with some rainfall in January in Mirissa Beach5
    5 days with some rainfall
  • 22°C minimum night-time temperature in January in Mirissa Beach22
    22°C min night temperature
  • 12 hours of daylight per day in January in Mirissa Beach12
    12 hours of daylight per day
  • High heat & humidity in January in Mirissa BeachH
    High heat & humidity
  • 89 mm monthly rainfall in January in Mirissa Beach89
    89 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in January in Mirissa Beach11
    11+ (Extreme) UV index
  • 28°C sea temperature in January in Mirissa Beach28
    28°C sea temperature

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The January weather guide for Sri Lanka (Mirissa Beach) 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 Sri Lanka

How hot is it in Mirissa Beach in January?

Daytime temperatures usually reach 30°C in Mirissa Beach in January with high heat and humidity, falling to 22°C at night.

How sunny is it in Mirissa Beach in January?

There are normally 7 hours of bright sunshine each day in Mirissa Beach in January - that's 62% of daylight hours.

How warm is the sea around Mirissa Beach in January?

The average sea temperature around Mirissa Beach in January is 28°C.

Does it rain in Mirissa Beach in January?

There are usually 5 days with some rain in Mirissa Beach in January and the average monthly rainfall is 89mm.

Mirissa Beach January sunrise & sunset times

Browse the sunrise and sunset times for Mirissa Beach in January 2025. Select a month to view Mirissa Beach sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 06:18 18:05
Thursday, 16th January 2025 06:23 18:12
Friday, 31st January 2025 06:25 18:18

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