World Resorts Sri Lanka Colombo Weather

Colombo weather in August

Weather in Colombo: August

Average day temperature: 84.7°F
Average night temperature: 78.9°F
Sea water temperature: 81.9°F
Number of sunny days: 2 days
Day length: 11.4 - 12.4 hours
Number of rainy days: 17 days
Precipitation totals: 14.6 in.

Air temperature in August, °F

Show year:
2025
2024
2023

The highest day temperature during August of 2025 was 84°F. At the same time the lowest night temperature was 77°F. Daily and nightly averages during August were 81.7°F and 78.3°F.

Sea water temperature in Colombo in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 82.2°F. The highest and lowest sea temperatures during the month were 83.7°F and 80.8°F.

Sunny, partly cloudy and cloudy days

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

Precipitation total in August, in.

Precipitation total value in Colombo in August is 17.6 in. It makes august one of the most rainy months of the year.

Wind speed in August, mph

The average wind speed value in August is 10.4 mph It makes August 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 August is: 4.4.

Best time for vacation in Colombo

Sunniest months:
January 16 days
February 16 days
March 15 days
Warmest months:
April 89.9 °F
March 89.8 °F
February 88.8 °F
Warmest sea temp:
April 86.3 °F
May 85.3 °F
March 84.8 °F
Coldest months:
August 84.7 °F
September 84.8 °F
July 84.9 °F
Rainiest months:
July 19 days
June 19 days
May 18 days
Windiest months:
June 11.0 mph
July 10.7 mph
August 10.6 mph

Colombo on a weather map

Colombo
+81°F
W 2 mph
Feels like: +86°F
Precip.: 0%
Places in Sri Lanka:
Name
°F
+82°F
+82°F
+82°F
+82°F
+82°F
+82°F
+81°F
+82°F
+81°F
+82°F
+82°F
+81°F
+82°F
+84°F
+82°F
24 Hours Forecast
Colombo
Local time: 10:11
December 05, friday
1200
82°F
E
6 mph
1500
81°F
E
11 mph
1800
79°F
SE
8 mph
2100
79°F
SW
7 mph
December 06, saturday
0000
77°F
W
6 mph
0300
75°F
SW
6 mph
0600
75°F
SW
6 mph
0900
81°F
SW
4 mph
Units of measurement: °C / °F