When to go · September

Sri Lanka in September

Workable but with caveats

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Daytime high

30°C

86°F

Overnight low

24°C

75°F

Rainfall

160 mm

wet

Crowd levels

low

quiet

Prices

low

value window

What to expect in Sri Lanka in September

September brings hot weather to Sri Lanka, with daytime highs around 30°C (86°F) and overnight lows near 24°C (75°F). Skies are typically distinctly rainy, with about 160 mm of rainfall on average.

September is a quiet stretch — most attractions are easy to access and you'll often have spaces to yourself. It's one of the best-value windows of the year for both flights and hotels. Peak season runs December–March, for context.

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