Annual mean 19°C · wettest around January · prevailing wind NE
Warmest
26.0 °C
Coldest
17.2 °C
Wettest
39%
Windiest
3.4 m/s
Prevailing
NE
2.9 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 19°C. February is the hottest month, with highs of about 26°C; July is the coldest, with lows of about 12°C. The rainy (wet) season in Colombo runs from December to March, peaking in January with a 43% chance of rain on a given day. The dry season is July to September; July is the driest month, at 18%. Winds in Colombo are highest in November, averaging 2.5 m/s (9 km/h), and lightest in May, at 1.8 m/s (6 km/h). The prevailing wind is from the NE. The clearest skies in Colombo come in July, when the sky is typically 60% covered; October is the cloudiest month, at 80%.
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
26°C
20°C
27°C
43%
74%
2.3 m/s
55
50
23
February
26°C
20°C
27°C
41%
68%
2.1 m/s
56
52
22
March
25°C
19°C
26°C
39%
72%
2.0 m/s
60
51
25
April
22°C
17°C
23°C
25%
69%
2.0 m/s
74
31
51
May
21°C
15°C
20°C
37%
66%
1.8 m/s
74
19
64
June
19°C
13°C
18°C
36%
63%
1.9 m/s
64
10
73
July
18°C
12°C
17°C
18%
60%
1.8 m/s
63
6
76
August
19°C
13°C
18°C
20%
65%
2.1 m/s
61
12
70
September
22°C
15°C
21°C
19%
66%
2.4 m/s
66
27
56
October
21°C
16°C
21°C
34%
80%
2.4 m/s
69
24
56
November
23°C
17°C
23°C
26%
74%
2.5 m/s
71
31
49
December
25°C
19°C
25°C
39%
76%
2.4 m/s
63
44
32
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 18°C at their warmest in July, its coolest month, and 26°C in February, its warmest; the coolest hours of the day run from 12°C to 20°C through the year, and the average temperature over the year is 19°C around the clock. Rain is most likely around January and least likely around July. 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 winterJune to August
High 19°CLow 12°CRain 25%
Winter in Colombo has typical daily highs of about 19°C and lows of about 12°C, with a 25% chance of rain on a given day.
Colombo weather in springSeptember to November
High 22°CLow 16°CRain 26%
Spring in Colombo has typical daily highs of about 22°C and lows of about 16°C, with a 26% chance of rain on a given day.
Colombo weather in summerDecember to February
High 25°CLow 19°CRain 41%
Summer in Colombo has typical daily highs of about 25°C and lows of about 19°C, with a 41% chance of rain on a given day.
Colombo weather in autumnMarch to May
High 23°CLow 17°CRain 34%
Autumn in Colombo has typical daily highs of about 23°C and lows of about 17°C, with a 34% chance of rain on a given day.
When is the rainy season in Colombo?
The rainy (wet) season in Colombo runs from December to March, peaking in January with a 43% chance of rain on a given day. The dry season is July to September; July is the driest month, at 18%.
What time of year is Colombo windiest?
Winds in Colombo are highest in November, averaging 2.5 m/s (9 km/h), and lightest in May, at 1.8 m/s (6 km/h). The prevailing wind is from the NE.
What is the average temperature in Colombo year round?
The average temperature in Colombo over the whole year is 19°C. February is the hottest month, with highs of about 26°C; July is the coldest, with lows of about 12°C.