Weather in September 2025

Sri Lanka weather in September 2025

The weather in Sri Lanka in September is very hot. The average temperatures are between 26°C and 29°C, drinking water regularly is advisable.

There’s going to be many days of rain during the month of September in Sri Lanka.

Sri Lanka should expect an average of 15 to 22 days of rain, so be sure to bring along a waterproof jacket to stay dry this month!

Our weather forecast can give you a great sense of what weather to expect in Sri Lanka in September 2025.

If you’re planning to visit Sri Lanka in the near future, we highly recommend that you review the 14 day weather forecast for Sri Lanka before you arrive.

Temperatures
Temperatures
29° / 26°
Rainy Days
Rainy Days
15
Snowy Days
Snowy Days
0
Dry Days
Dry Days
15
Rainfall
Rainfall
475
mm
10.1
Sun Hours
10.1
Hrs

Sri Lanka annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January 31° / 24° 5 26 0 69 mm
Good
February 32° / 24° 5 23 0 71 mm
Good
March 32° / 26° 9 22 0 135 mm
Ok
April 32° / 27° 13 17 0 246 mm
Ok
May 30° / 27° 18 13 0 637 mm
Ok
June 29° / 26° 21 9 0 736 mm
Ok
July 29° / 26° 20 11 0 595 mm
Ok
August 29° / 26° 20 11 0 608 mm
Ok
September 29° / 26° 15 15 0 475 mm
Ok
October 30° / 26° 15 16 0 383 mm
Ok
November 30° / 25° 14 16 0 300 mm
Ok
December 30° / 25° 9 22 0 159 mm
Ok
Temperatures in Sri Lanka in September
Rain in Sri Lanka in September

Recommended Hotels in Sri Lanka

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That’s why we run our special tools and found the best hotels in Sri Lanka. Click on hotel for more details.

Weather in Sri Lanka in September - FAQ

What is the average temperature in Sri Lanka in September?
The average temperature in Sri Lanka in September is 26/29° C.
What is the chance of rain in Sri Lanka in September?
On average, there are 15 rainy days in Sri Lanka during September.
Weather wise, is September a good time to visit Sri Lanka?
The weather in Sri Lanka in September is ok.
Can it snow in Sri Lanka in September?
On average, there are 0 snowy days in Sri Lanka in September.
Cities in Sri Lanka

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More about the weather in Sri Lanka