Monthly climate metrics across temperature, precipitation, wind, and UV.
| Metric | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature | |||||||||||||
| Daily high°C | 28 | 28 | 29 | 30 | 32 | 32 | 32 | 31 | 31 | 30 | 29 | 28 | 30 |
| Daily mean°C | 26 | 27 | 28 | 29 | 30 | 30 | 30 | 29 | 29 | 28 | 27 | 27 | 28 |
| Daily low°C | 25 | 25 | 26 | 27 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 25 | 27 |
| Thermal comfort | |||||||||||||
| High feelsDaily high feels-like°C | 34 | 34 | 37 | 38 | 39 | 39 | 39 | 39 | 39 | 37 | 36 | 35 | 37 |
| Mean feelsDaily mean feels-like°C | 30 | 30 | 32 | 34 | 35 | 35 | 34 | 34 | 34 | 32 | 30 | 30 | 33 |
| Low feelsDaily low feels-like°C | 24 | 23 | 25 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 25 | 24 | 26 |
| Humidity | |||||||||||||
| HumidityRelative humidity% | 80 | 79 | 78 | 78 | 77 | 72 | 69 | 71 | 76 | 78 | 83 | 82 | 77 |
| Dewpoint°C | 23.3 | 22.8 | 23.5 | 24.3 | 25.0 | 24.4 | 23.6 | 23.7 | 24.0 | 23.6 | 23.8 | 23.3 | 23.8 |
| Precipitation | |||||||||||||
| Rainfallmm | 207 | 73 | 124 | 101 | 111 | 55 | 49 | 61 | 48 | 168 | 265 | 270 | 1531 |
| Rain days≥1mm | 21 | 16 | 16 | 19 | 19 | 14 | 12 | 12 | 14 | 19 | 27 | 19 | 208 |
| Wind | |||||||||||||
| Wind avgm/s | 3.8 | 4.2 | 3.2 | 2.9 | 2.2 | 1.9 | 2.2 | 2.4 | 2.0 | 2.1 | 2.8 | 3.6 | 2.8 |
| Wind gustsm/s | 5.9 | 6.2 | 5.0 | 4.2 | 4.4 | 4.1 | 5.1 | 5.2 | 4.3 | 4.7 | 5.7 | 5.9 | 5.1 |
| Sun & UV | |||||||||||||
| Sunshinehrs/day | 9.0 | 9.2 | 10.0 | 10.0 | 10.0 | 10.0 | 9.9 | 10.0 | 9.5 | 9.3 | 8.3 | 9.0 | 9.5 |
| Clear skyindex | 28% | 50% | 50% | 58% | 40% | 41% | 37% | 37% | 39% | 35% | 31% | 35% | 40% |
| UV indexmax avg | 9.1 | 10.1 | 10.7 | 11.9 | 10.5 | 10.0 | 10.2 | 11.5 | 11.3 | 10.1 | 8.4 | 7.9 | 10.2 |
Compared across Sri Lanka
Kalmunai: 25.2 °C. Typical range in Sri Lanka: 23.6–25.2 °C. Low anchor: Badulla, 20.5 °C. High anchor: Colombo, 26.5 °C.
28 cities tracked