Average temperatures in Colombo throughout September is 26. Highs are around 30 and lows around 25. We have put some more information below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 26 |
| High Temperature | 30 |
| Low Temperature | 25 |
| Sunshine Per Day | 9 |
Useful Links: Colombo Weather: Average Weather & Yearly Climate