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Draft data. Times, fares and step counts are desk estimates awaiting field checks. Unknown times stay unknown. How we verify

When to go · Colombo

Colombo in September

Mixed month. Mixed; showers and storms.

Key facts

Verdict
Mixed
Temperature
29° / 25°
average high / low
Rain days
15
Crowds
Low
Sri Lanka overall
Prices
Low
Sri Lanka overall

Verdict

MixedVoykit month rating for Colombo

Mixed; showers and storms.

Weather in September

Long-term averages
  • ColomboHighs around 29 °C, lows around 25 °C, rain on about 15 days
  • West and south coast, Sri Lanka · Colombo, Negombo, Bentota, Galle, Mirissarainy

    South-west monsoon May–Sep brings rough seas and red flags; October–November inter-monsoon storms are heavy in Colombo.

South-west monsoon season

Heavy, frequent rain; the east coast is drier in this window if you are combining regions.

Watch: Flooded streets after storms; rough seas.

Crowds and prices

Crowds · Sri Lanka overall
Low
Prices · Sri Lanka overall
Low

Sri Lanka overall: East still good; Yala often closes for part of September–October.

What to pack

  • A rain jacket or umbrella and shoes that dry fast

Build the full packing list for your trip →

Across Sri Lanka in September →