Annual mean 27°C · wettest around October · prevailing wind W
Warmest
31.5 °C
Coldest
28.9 °C
Wettest
24%
Windiest
3.0 m/s
Prevailing
W
2.4 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Colombo over the whole year is 27°C. April is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 23°C. The rainy (wet) season in Colombo runs from September to November, peaking in October with a 23% chance of rain on a given day. The dry season is December to April; February is the driest month, at 4%. Winds in Colombo are highest in June, averaging 2.3 m/s (8 km/h), and lightest in November, at 1.2 m/s (4 km/h). The prevailing wind is from the W. The clearest skies in Colombo come in February, when the sky is typically 46% covered; October is the cloudiest month, at 70%.
Month by month Colombo climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
30°C
23°C
33°C
5%
51%
1.8 m/s
7
54
3
February
31°C
24°C
34°C
4%
46%
1.7 m/s
5
39
3
March
31°C
25°C
35°C
6%
51%
1.3 m/s
4
21
2
April
31°C
26°C
36°C
10%
57%
1.3 m/s
4
10
2
May
30°C
26°C
35°C
20%
69%
1.9 m/s
3
16
2
June
30°C
27°C
34°C
17%
67%
2.3 m/s
3
26
2
July
30°C
26°C
33°C
10%
66%
2.3 m/s
4
35
3
August
29°C
26°C
33°C
10%
68%
2.2 m/s
4
41
2
September
29°C
26°C
33°C
21%
69%
2.0 m/s
4
36
2
October
29°C
25°C
33°C
23%
70%
1.5 m/s
4
34
2
November
30°C
24°C
34°C
19%
67%
1.2 m/s
4
33
2
December
30°C
24°C
33°C
10%
58%
1.5 m/s
6
44
3
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Colombo weather by season
Year round, Colombo has days of about 29°C at their warmest in September, its coolest month, and 31°C in April, its warmest; the coolest hours of the day run from 23°C to 27°C through the year, and the average temperature over the year is 27°C around the clock. Rain is most likely around October and least likely around February. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Colombo weather in winterDecember to February
High 30°CLow 24°CRain 6%
Winter in Colombo has typical daily highs of about 30°C and lows of about 24°C, with a 6% chance of rain on a given day.
Colombo weather in springMarch to May
High 31°CLow 26°CRain 12%
Spring in Colombo has typical daily highs of about 31°C and lows of about 26°C, with a 12% chance of rain on a given day.
Colombo weather in summerJune to August
High 30°CLow 26°CRain 12%
Summer in Colombo has typical daily highs of about 30°C and lows of about 26°C, with a 12% chance of rain on a given day.
Colombo weather in autumnSeptember to November
High 29°CLow 25°CRain 21%
Autumn in Colombo has typical daily highs of about 29°C and lows of about 25°C, with a 21% chance of rain on a given day.
When is the rainy season in Colombo?
The rainy (wet) season in Colombo runs from September to November, peaking in October with a 23% chance of rain on a given day. The dry season is December to April; February is the driest month, at 4%.
What time of year is Colombo windiest?
Winds in Colombo are highest in June, averaging 2.3 m/s (8 km/h), and lightest in November, at 1.2 m/s (4 km/h). The prevailing wind is from the W.
What is the average temperature in Colombo year round?
The average temperature in Colombo over the whole year is 27°C. April is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 23°C.