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

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