Colombo weather in January 2026

Expect daytime maximum temperatures of 31°C in Colombo, Sri Lanka in January and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 55 mm of rainfall in the month.

  • 31°C maximum daytime temperature in January in Colombo31
    31°C max day temperature
  • 8 hours of sunshine per day
  • 5 days with some rainfall in January in Colombo5
    5 days with some rainfall
  • 22°C minimum night-time temperature in January in Colombo22
    22°C min night temperature
  • 12 hours of daylight per day in January in Colombo12
    12 hours of daylight per day
  • High heat & humidity in January in ColomboH
    High heat & humidity
  • 55 mm monthly rainfall in January in Colombo55
    55 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in January in Colombo11
    11 (Extreme) UV index
  • 28°C sea temperature in January in Colombo28
    28°C sea temperature

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The January weather guide for Sri Lanka (Colombo) 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 Colombo in January?

Daytime temperatures usually reach 31°C in Colombo in January with high heat and humidity, falling to 22°C at night.

How sunny is it in Colombo in January?

There are normally 8 hours of bright sunshine each day in Colombo in January - that's 67% of daylight hours.

How warm is the sea around Colombo in January?

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

Does it rain in Colombo in January?

There are usually 5 days with some rain in Colombo in January and the average monthly rainfall is 55mm.

Colombo January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 06:22 18:06
Friday, 16th January 2026 06:27 18:13
Saturday, 31st January 2026 06:29 18:19

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