World Resorts Sri Lanka Colombo Weather

Colombo weather in September

Weather in Colombo: September

Average day temperature: 85.0°F
Average night temperature: 78.6°F
Sea water temperature: 82.6°F
Number of sunny days: 1 day
Day length: 12.1 - 12.2 hours
Number of rainy days: 17 days
Precipitation totals: 13.4 in.

Air temperature in September, °F

Show year:
2024
2023
2022

The highest day temperature during September of 2024 was 84°F. At the same time the lowest night temperature was 78°F. Day and night temperature averages during September were 83.0°F and 79.8°F.

Sea water temperature in Colombo in September, °F

Show year:
2024
2023
2022

The average sea water temperature in September of 2024 was 84.1°F. The highest and lowest sea temperatures during the month were 84.9°F and 83.5°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Colombo in September is 16.3 in. It makes september one of the most rainy months of the year.

Wind speed in September, mph

The average wind speed value in September is 9.5 mph It makes September one of the most windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 4.0.

Best time for vacation in Colombo

Sunniest months:
January 17 days
February 16 days
March 15 days
Warmest months:
April 90.2 °F
March 90.1 °F
February 89.1 °F
Warmest sea temp:
April 86.3 °F
May 85.3 °F
March 84.7 °F
Coldest months:
August 84.9 °F
September 85.0 °F
July 85.1 °F
Rainiest months:
July 19 days
June 19 days
May 18 days
Windiest months:
June 10.9 mph
July 10.6 mph
August 10.6 mph

Colombo on a weather map

Colombo
+81°F
SW 2 mph
Feels like: +86°F
Precip.: 100%
Places in Sri Lanka:
Name
°F
+81°F
+81°F
+81°F
+81°F
+79°F
+81°F
+81°F
+79°F
+77°F
+79°F
+79°F
+77°F
+81°F
+79°F
+79°F
24 Hours Forecast
Colombo
Local time: 17:38
November 21, thursday
1800
81°F
SW
2 mph
2100
79°F
SW
11 mph
November 22, friday
0000
77°F
SW
10 mph
0300
77°F
SW
7 mph
0600
77°F
SW
11 mph
0900
81°F
S
11 mph
1200
84°F
S
12 mph
1500
82°F
S
15 mph
Units of measurement: °C / °F