Colombo Weather in September
30.3°C high · 24.9°C low · 195 mm rain · 8.7h sun
Sep is a warm month in Colombo — not peak season, but a good time to avoid crowds.
September at a glance
| Metric | Value |
|---|---|
| Average high | 30.3°C |
| Average low | 24.9°C |
| Rainfall | 195 mm |
| Sunshine | 8.7 hours/day |
| Daylight | 12 hours |
What to pack in September
Pack light, breathable clothes, plus a raincoat and umbrella for Colombo in September.
Colombo weather by month
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Frequently asked questions
What is the weather in Colombo in September?
Highs of 30.3°C and lows of 24.9°C, with about 195 mm of rain and 8.7 hours of sunshine per day.
Is September a good time to visit Colombo?
Sep is a warm month in Colombo — not peak season, but a good time to avoid crowds.
What to do in Colombo · Best time to visit Colombo
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.