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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 89°F, while the coldest is December averaging around 74°F at night. Precipitation totals about 39 inches a year and is strongly seasonal — December alone averages 6.3 inches while July barely receives 0.99 inches.
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 (°F) | 87 | 88 | 89 | 89 | 88 | 88 | 89 | 88 | 87 | 87 | 87 | 86 |
| Avg temp (°F) | 80 | 81 | 82 | 83 | 83 | 82 | 83 | 82 | 82 | 81 | 81 | 80 |
| Avg low (°F) | 74 | 74 | 75 | 77 | 78 | 78 | 77 | 77 | 77 | 76 | 75 | 74 |
| Precipitation (in) | 1.8 | 2.2 | 1.7 | 2.7 | 3.3 | 1.7 | 1.0 | 3.0 | 4.5 | 4.9 | 6.3 | 6.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 87 | 88 | 89 | 89 | 88 | 88 |
| Avg temp (°F) | 80 | 81 | 82 | 83 | 83 | 82 |
| Avg low (°F) | 74 | 74 | 75 | 77 | 78 | 78 |
| Precipitation (in) | 1.8 | 2.2 | 1.7 | 2.7 | 3.3 | 1.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 89 | 88 | 87 | 87 | 87 | 86 |
| Avg temp (°F) | 83 | 82 | 82 | 81 | 81 | 80 |
| Avg low (°F) | 77 | 77 | 77 | 76 | 75 | 74 |
| Precipitation (in) | 1.0 | 3.0 | 4.5 | 4.9 | 6.3 | 6.3 |
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 ≥ 90°F (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 ≥ 90°F (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 ≥ 90°F (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 (mph) | 10.6 | 9.7 | 7.7 | 7.3 | 12.3 | 14.0 | 14.1 | 14.0 | 13.5 | 10.7 | 7.9 | 9.4 |
| 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 (mph) | 10.6 | 9.7 | 7.7 | 7.3 | 12.3 | 14.0 |
| 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 (mph) | 14.1 | 14.0 | 13.5 | 10.7 | 7.9 | 9.4 |
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.