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Hambantota, Sri Lanka climate
As Tropical savanna (dry summer)
Hambantota has a remarkably steady tropical climate (Tropical savanna (dry summer), Köppen As). The hottest month is April with an average daily high near 32°C, while the coldest is December averaging around 23°C at night. Precipitation totals about 999 mm a year and is strongly seasonal — December alone averages 160 mm while July barely receives 25 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Hambantota climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 31 | 32 | 32 | 31 | 31 | 31 | 31 | 30 | 31 | 30 | 30 |
| Avg temp (°C) | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 |
| Avg low (°C) | 23 | 23 | 24 | 25 | 26 | 25 | 25 | 25 | 25 | 24 | 24 | 23 |
| Precipitation (mm) | 46 | 55 | 44 | 68 | 85 | 42 | 25 | 76 | 115 | 124 | 159 | 160 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 31 | 32 | 32 | 31 | 31 |
| Avg temp (°C) | 27 | 27 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 23 | 23 | 24 | 25 | 26 | 25 |
| Precipitation (mm) | 46 | 55 | 44 | 68 | 85 | 42 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 31 | 30 | 31 | 30 | 30 |
| Avg temp (°C) | 28 | 28 | 28 | 27 | 27 | 27 |
| Avg low (°C) | 25 | 25 | 25 | 24 | 24 | 23 |
| Precipitation (mm) | 25 | 76 | 115 | 124 | 159 | 160 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 3 | 3 | 3 | 6 | 6 | 7 | 4 | 6 | 8 | 8 | 10 | 8 |
| Days with high ≥ 32°C (days) | 6 | 7 | 10 | 10 | 5 | 6 | 9 | 6 | 3 | 3 | 3 | 3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 3 | 3 | 3 | 6 | 6 | 7 |
| Days with high ≥ 32°C (days) | 6 | 7 | 10 | 10 | 5 | 6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 4 | 6 | 8 | 8 | 10 | 8 |
| Days with high ≥ 32°C (days) | 9 | 6 | 3 | 3 | 3 | 3 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 58 | 52 | 63 | 66 | 71 | 73 | 70 | 69 | 72 | 76 | 72 |
| Relative humidity (%) | 81 | 79 | 77 | 80 | 84 | 84 | 83 | 83 | 82 | 83 | 83 | 83 |
| Wind speed (km/h) | 17.1 | 15.6 | 12.3 | 11.8 | 19.8 | 22.5 | 22.7 | 22.5 | 21.7 | 17.2 | 12.7 | 15.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 58 | 52 | 63 | 66 | 71 |
| Relative humidity (%) | 81 | 79 | 77 | 80 | 84 | 84 |
| Wind speed (km/h) | 17.1 | 15.6 | 12.3 | 11.8 | 19.8 | 22.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 70 | 69 | 72 | 76 | 72 |
| Relative humidity (%) | 83 | 83 | 82 | 83 | 83 | 83 |
| Wind speed (km/h) | 22.7 | 22.5 | 21.7 | 17.2 | 12.7 | 15.1 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 15 years of daily observations at Hambantota, a weather station, about 2 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.