CLIMATE
Climate of Colombo, SriLanka
Seasonal climate characteristics and practical weather context.
Climate of Colombo, SriLanka
NASA POWER’s 1991–2020 climatology for Colombo, SriLanka (6.935, 79.849) gives an annual mean temperature of 26.4 °C and estimated annual precipitation of about 1,774 mm.
Temperature
April has the highest monthly mean temperature at 27.7 °C. January is coolest at 25.5 °C, a yearly monthly-mean range of 2.2 °C.
Precipitation
November has the highest estimated monthly total (about 266 mm); February has the lowest (about 61 mm). Monthly totals are estimated from NASA POWER’s mean daily precipitation rates.
Monthly averages
| Month | Mean temperature | Estimated precipitation |
|---|---|---|
| January | 25.5 °C | 66 mm |
| February | 26.5 °C | 61 mm |
| March | 27.7 °C | 89 mm |
| April | 27.7 °C | 192 mm |
| May | 27.3 °C | 203 mm |
| June | 26.6 °C | 139 mm |
| July | 26.1 °C | 97 mm |
| August | 26.1 °C | 102 mm |
| September | 26.2 °C | 146 mm |
| October | 26.1 °C | 262 mm |
| November | 26.0 °C | 266 mm |
| December | 25.6 °C | 152 mm |