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 | 28 | 29 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 |
| Daily mean°C | 24 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 25 |
| Daily low°C | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 |
| Thermal comfort | |||||||||||||
| High feelsDaily high feels-like°C | 34 | 34 | 34 | 35 | 34 | 32 | 32 | 32 | 31 | 32 | 33 | 33 | 33 |
| Mean feelsDaily mean feels-like°C | 30 | 31 | 30 | 31 | 29 | 29 | 28 | 29 | 28 | 27 | 28 | 29 | 29 |
| Low feelsDaily low feels-like°C | 22 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 22 | 22 | 23 | 23 | 23 |
| Humidity | |||||||||||||
| HumidityRelative humidity% | 85 | 82 | 85 | 85 | 88 | 87 | 86 | 87 | 89 | 89 | 90 | 87 | 87 |
| Dewpoint°C | 21.6 | 21.5 | 22.2 | 22.6 | 23.1 | 22.4 | 21.9 | 21.7 | 22.0 | 21.6 | 22.0 | 21.8 | 22.0 |
| Precipitation | |||||||||||||
| Rainfallmm | 111 | 79 | 136 | 280 | 603 | 343 | 256 | 227 | 310 | 370 | 430 | 202 | 3347 |
| Rain days≥1mm | 19 | 14 | 26 | 30 | 31 | 30 | 31 | 26 | 30 | 30 | 27 | 24 | 318 |
| Wind | |||||||||||||
| Wind avgm/s | 0.8 | 0.9 | 1.0 | 0.9 | 1.6 | 2.3 | 2.5 | 2.4 | 2.1 | 1.5 | 1.0 | 0.8 | 1.5 |
| Wind gustsm/s | 1.7 | 2.0 | 2.0 | 1.9 | 4.0 | 4.1 | 4.4 | 3.9 | 3.9 | 3.7 | 2.7 | 2.6 | 3.1 |
| Sun & UV | |||||||||||||
| Sunshinehrs/day | 8.9 | 9.6 | 9.0 | 9.3 | 8.7 | 9.7 | 9.3 | 9.9 | 9.0 | 8.3 | 8.0 | 8.7 | 9.0 |
| Clear skyindex | 33% | 50% | 46% | 40% | 29% | 29% | 26% | 27% | 28% | 23% | 27% | 34% | 33% |
| UV indexmax avg | 8.7 | 10.0 | 10.2 | 10.0 | 7.1 | 7.2 | 7.6 | 8.6 | 7.5 | 7.6 | 7.2 | 7.7 | 8.3 |
Compared across Sri Lanka
Ratnapura: 23.3 °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