Weather in Colombo in September
Climate normals based on 10 years of historical data for Colombo, Sri Lanka.
Average high
29°C
Average low
25°C
Rainfall
332 mm
27 rainy days
Sunshine
0.7h/day
Kelembapan
83%
How Hot Is Colombo in September?
Expect daytime highs around 29°C and overnight lows near 25°C in Colombo during September — an average of 27°C across the day.
Sunshine Hours in September
Heavy overcast keeps sun limited in Colombo: just 0.7h a day in September.
Does It Rain In Colombo In September?
Heaviest rainfall of the year hits Colombo: 332mm across 27 days.
Is Colombo Humid In September?
Colombo is sticky and humid throughout September: 83% humidity makes the heat feel relentless.
Wind In Colombo In September
Breezes around 18 kph in Colombo this September — comfortable for outdoor activity.
Cloud Cover In Colombo In September
Heavy cloud blankets Colombo in September — averaging 80% cover, with mostly overcast skies.
Cities With Similar Weather In September
Weather in Colombo, month by month
| Month | High / Low | Hujan | |
|---|---|---|---|
| Cuaca Januari | 31°C / 23°C | 88mm | Details → |
| Cuaca Februari | 31°C / 24°C | 64mm | Details → |
| Cuaca Mac | 32°C / 25°C | 121mm | Details → |
| Cuaca April | 32°C / 26°C | 183mm | Details → |
| Cuaca Mei | 30°C / 26°C | 491mm | Details → |
| Cuaca Jun | 29°C / 26°C | 358mm | Details → |
| Cuaca Julai | 29°C / 26°C | 249mm | Details → |
| Cuaca Ogos | 29°C / 25°C | 286mm | Details → |
| Cuaca September | 29°C / 25°C | 332mm | |
| Cuaca Oktober | 29°C / 25°C | 441mm | Details → |
| Cuaca November | 29°C / 24°C | 437mm | Details → |
| Cuaca Disember | 30°C / 24°C | 196mm | Details → |