Common information
CountrySri Lanka
Population47 832
Weather, climate, temperature by months in Ratnapura
Season | Autumn | Winter | Spring | Summer | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
Record high, °C | 38 | 38 | 38 | 38 | 37 | 40 | 33 | 40 | 36 | 40 | 38 | 39 | 40 |
Average high, °C | 31 | 31 | 32 | 32 | 33 | 34 | 34 | 34 | 32 | 31 | 31 | 31 | 32 |
Average temperature, °C | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 |
Average low, °C | 23 | 23 | 23 | 22 | 22 | 22 | 23 | 23 | 24 | 24 | 24 | 23 | 23 |
Record low, °C | 20 | 17 | 18 | 17 | 17 | 18 | 20 | 21 | 21 | 15 | 20 | 17 | 15 |
Rain, days | 20 | 21 | 18 | 14 | 9 | 9 | 14 | 20 | 20 | 21 | 19 | 20 | 205 |
Fog, days | 0 | 3 | 4 | 4 | 4 | 5 | 4 | 1 | 1 | 0 | 1 | 0 | 27 |
Thunderstorms, days | 2 | 4 | 7 | 6 | 2 | 3 | 7 | 12 | 9 | 2 | 1 | 1 | 56 |
Average precipitation, mm. | 421 | 437 | 371 | 235 | 111 | 137 | 212 | 339 | 476 | 412 | 293 | 304 | 3749 |
Relative humidity morning, % | 87 | 91 | 93 | 91 | 87 | 90 | 91 | 91 | 87 | 86 | 85 | 85 | 89 |
Relative humidity evening, % | 72 | 72 | 70 | 64 | 59 | 60 | 62 | 67 | 72 | 73 | 72 | 72 | 68 |
Wind speed, km/h | 9 | 8 | 8 | 8 | 8 | 9 | 9 | 8 | 8 | 9 | 9 | 9 | 9 |
Day Length, часов | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 12 |
Dew point, °C | 23 | 23 | 22 | 22 | 21 | 21 | 22 | 23 | 24 | 23 | 23 | 23 | 270 |
Growing degree-day, °C | 510 | 530 | 515 | 528 | 534 | 502 | 568 | 553 | 556 | 521 | 530 | 529 | 6376 |
Solar radiation, global, Mj/m2 | 18 | 17 | 16 | 15 | 17 | 20 | 22 | 20 | 18 | 17 | 17 | 18 | 18 |