Thermograph

How unusual is the weather? Graded against ~45 years of local climate history.

Weather in Colombo in September

In an average September, Colombo sees a daily high around 28°C and a low around 26°C, based on 1980–2026 of local climate records.

Average high28°C
Typical high range27°C to 29°C
Average low26°C
Typical low range25°C to 27°C
Average daily precipitation8 mm

September records

The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.

High

Highest 30°C 2024-09-28
Lowest 26°C 2004-09-27

Low

Highest 28°C 2024-09-06
Lowest 24°C 1985-09-24

Feels-like

Highest 41°C 2024-09-28
Lowest 26°C 2004-09-27

Humidity

Highest 23.6 g/m³ 2024-09-28
Lowest 19.0 g/m³ 2008-09-30

Wind

Highest 41 km/h 2020-09-06
Lowest 8 km/h 2010-09-30

Gust

Highest 66 km/h 2020-09-06
Lowest 17 km/h 2010-09-30

Precip

Wettest 524 mm 2023
Driest 88 mm 2016

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