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 | 31 | 32 | 32 | 31 | 30 | 30 | 29 | 28 | 30 |
| Daily mean°C | 26 | 27 | 28 | 29 | 30 | 30 | 30 | 29 | 29 | 28 | 27 | 27 | 28 |
| Daily low°C | 25 | 26 | 27 | 27 | 28 | 29 | 28 | 28 | 28 | 27 | 26 | 26 | 27 |
| Thermal comfort | |||||||||||||
| High feelsDaily high feels-like°C | 34 | 35 | 38 | 39 | 40 | 39 | 39 | 40 | 39 | 38 | 37 | 35 | 38 |
| Mean feelsDaily mean feels-like°C | 30 | 30 | 32 | 35 | 35 | 35 | 34 | 34 | 34 | 32 | 31 | 30 | 33 |
| Low feelsDaily low feels-like°C | 24 | 24 | 25 | 27 | 29 | 28 | 27 | 27 | 27 | 26 | 25 | 24 | 26 |
| Humidity | |||||||||||||
| HumidityRelative humidity% | 79 | 78 | 78 | 77 | 76 | 70 | 68 | 71 | 74 | 78 | 83 | 82 | 76 |
| Dewpoint°C | 23.4 | 22.9 | 23.7 | 24.5 | 25.0 | 24.0 | 23.6 | 23.4 | 23.9 | 23.6 | 24.0 | 23.6 | 23.8 |
| Precipitation | |||||||||||||
| Rainfallmm | 242 | 68 | 88 | 35 | 7 | 3 | 42 | 74 | 79 | 182 | 373 | 432 | 1626 |
| Rain days≥1mm | 21 | 15 | 15 | 11 | 2 | 0 | 12 | 11 | 15 | 20 | 26 | 23 | 171 |
| Wind | |||||||||||||
| Wind avgm/s | 4.3 | 4.6 | 3.5 | 3.2 | 2.3 | 2.3 | 3.0 | 3.0 | 2.3 | 2.6 | 3.1 | 4.2 | 3.2 |
| Wind gustsm/s | 6.5 | 6.8 | 5.2 | 4.7 | 5.8 | 5.0 | 6.6 | 6.3 | 4.9 | 5.0 | 6.6 | 6.6 | 5.8 |
| Sun & UV | |||||||||||||
| Sunshinehrs/day | 9.0 | 9.5 | 10.1 | 10.2 | 10.0 | 10.0 | 10.0 | 10.0 | 9.5 | 9.6 | 9.0 | 9.0 | 9.7 |
| Clear skyindex | 33% | 53% | 56% | 60% | 40% | 38% | 38% | 39% | 40% | 37% | 34% | 36% | 42% |
| UV indexmax avg | 8.4 | 9.1 | 10.3 | 11.5 | 9.9 | 9.7 | 9.5 | 11.0 | 11.0 | 9.8 | 8.3 | 7.3 | 9.6 |
Compared across Sri Lanka
Batticaloa: 25.5 °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