Colombo climate can be broadly described as tropical. The mean monthly temperature of Colombo is about 27º C with the highest temperature reaching about 36º C and the minimum of around 15º C. Colombo has two distinctive rainy seasons: i) from April to June and ii) from October to December. The distribution of mean monthly temperature and average monthly rainfall in Colombo over the 12 months of a year is:
| Month |
Mean Temp. in º C |
Avg. Precipitation in mm |
| January |
26.1 |
89 |
| February |
26.4 |
69 |
|
| March |
27.2 |
147 |
| April |
27.8 |
231 |
| May |
28.1 |
371 |
| June |
27.2 |
224 |
| July |
27.2 |
135 |
| August |
27.2 |
109 |
| September |
27.2 |
160 |
| October |
26.7 |
348 |
| November |
26.1 |
315 |
| December |
25.9 |
147 |
Colombo weather is characterized by the tropical and hot atmospheric conditions without much variation in temperature or humidity. In Colombo there are no distinct seasons, except for the two rainy seasons.
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