Historical Weather in Colombo, Sri Lanka
See 55+ years of weather history for any date in Colombo going back to 1970.
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Monthly Climate Averages
Historical temperature and precipitation averages for Colombo, Sri Lanka, based on 55+ years of weather data.
Temperatures shown in Celsius with Fahrenheit in parentheses. Rainfall in millimetres, snowfall in centimetres.
Colombo Weather by Month
9 of the 10 warmest Januarys on record in Colombo have come since 2012.
9 of the 10 warmest Februarys on record in Colombo have come since 2012.
9 of the 10 warmest Marches on record in Colombo have come since 2012.
9 of the 10 warmest Aprils on record in Colombo have come since 2012.
9 of the 10 warmest Mays on record in Colombo have come since 2012.
9 of the 10 warmest Junes on record in Colombo have come since 2012.
10 of the 10 warmest Julys on record in Colombo have come since 2012.
9 of the 10 warmest Augusts on record in Colombo have come since 2012.
September 2025 was the warmest September in 16 years of records, 0.7°C (1.2°F) above the long-run average.
8 of the 10 warmest Octobers on record in Colombo have come since 2011.
10 of the 10 warmest Novembers on record in Colombo have come since 2011.
10 of the 10 warmest Decembers on record in Colombo have come since 2011.
Source: NOAA GHCN-Daily, Colombo (1978–2026). Records through 2026.