Colombo in September
Colombo in September
Colombo, Sri Lanka
Visiting Colombo in September means experiencing the wet season. As a tropical destination, expect warm temperatures year-round with higher rainfall and humidity.
Weather in Colombo in September
Average highs around 28.6C and lows near 24.7C. 313.8mm average precipitation and about 29 rainy days. September typically sits between August and October conditions, so it is useful for travelers wanting a balanced window in Colombo. Pack quick-dry clothing and a light waterproof layer for September.
Temperature
September brings wet season conditions in Colombo, Sri Lanka. The average temperature is about 26.7C, with lows near 24.7C and highs around 28.6C.
Sunshine Hours
Colombo, Sri Lanka usually gets around 9.1 hours of sunshine per day in September, with roughly 12.2 daylight hours available for sightseeing.
Rain
September sees around 313.8mm of rainfall over about 29 days. Rain can occur for around 16.7 hours per day on average.
Humidity
Humidity in September is generally humid for Colombo, Sri Lanka, especially when rainfall periods increase.
Additional Information
Average winds are around 19.1 km/h, so pack layers that handle changing conditions. Pack quick-dry clothing and a light waterproof layer for September.
Our September Hotel Picks for Colombo
CityRest Fort
Bright dorms & private rooms in a down-to-earth hostel offering a communal kitchen & a guest lounge.
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The Kingsbury Colombo
Elegant rooms & suites in a striking, contemporary hotel offering 4 restaurants, a pool & a spa.
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Jetwing Colombo Seven
Refined hotel featuring a rooftop bar/restaurant & an infinity pool, plus a spa & a gym.
View hotelWhat to Do in Colombo in September
Beddagana Wetland Park
Peaceful natural area with walking paths through the wetlands & abundant bird life.
Explore activity
Mount Lavinia Beach.
Scenic beach offering a stretch of sand, waves, lifeguards, hotels & nearby restaurants.
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Galle Dutch Fort
Built in the 16th century, this preserved Dutch sea fort houses a network of museums, shops & cafes.
Explore activityTravel tips for Colombo in September
Pack quick-dry clothing and a light waterproof layer for September. Book accommodation earlier when events overlap with peak weekends, and keep an eye on changing weather windows for day trips.
