Hambantota climate by month
Averages and records for each calendar month at Hambantota, Sri Lanka, from 1869 to 2025. The warmest month is April, averaging 31.3°C; the coolest is December at 29.6°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 29.7°C | 22.5°C | 34.7°C7 January 1999 | 17.7°C27 January 1876 | 124 / 144 |
| February | 30.3°C | 22.6°C | 35.7°C23 February 2025 | 15.6°C16 February 1918 | 127 / 145 |
| March | 31.0°C | 23.5°C | 35.3°C24 March 1902 | 17.4°C10 March 1908 | 128 / 144 |
| April | 31.3°C | 24.5°C | 36.0°C21 April 1892 | 18.9°C17 April 1899 | 122 / 145 |
| May | 30.8°C | 25.2°C | 36.4°C7 May 1904 | 19.5°C28 May 1897 | 126 / 146 |
| June | 30.6°C | 24.8°C | 37.2°C3 June 1881 | 21.2°C7 June 1993 | 120 / 146 |
| July | 30.9°C | 24.5°C | 36.3°C22 July 2023 | 19.6°C1 July 1933 | 125 / 146 |
| August | 30.6°C | 24.4°C | 39.2°C22 August 1999 | 20.1°C10 August 1893 | 124 / 146 |
| September | 30.3°C | 24.3°C | 36.5°C27 September 2022 | 20.6°C8 September 1888 | 126 / 145 |
| October | 30.3°C | 24.0°C | 36.9°C31 October 1901 | 20.2°C31 October 1917 | 127 / 144 |
| November | 29.9°C | 23.4°C | 36.7°C12 November 1874 | 19.6°C1 November 1917 | 125 / 144 |
| December | 29.6°C | 22.9°C | 34.8°C7 December 2011 | 18.2°C30 December 1937 | 123 / 143 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 120 to 128 years each.
See what Hambantota is doing right now
Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.