Puttalam climate by month
Averages and records for each calendar month at Puttalam, Sri Lanka, from 1962 to 2026. The warmest month is March, averaging 33.6°C; the coolest is December at 30.2°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 30.6°C | 21.6°C | 34.4°C24 January 2004 | 15.0°C25 January 1974 | 20 / 60 |
| February | 32.1°C | 22.2°C | 36.4°C27 February 2010 | 15.2°C11 February 1982 | 14 / 61 |
| March | 33.6°C | 23.5°C | 37.8°C28 March 1998 | 18.6°C5 March 1989 | 21 / 61 |
| April | 33.2°C | 25.3°C | 38.5°C2 April 2020 | 21.0°C28 April 1979 | 22 / 59 |
| May | 32.5°C | 26.6°C | 38.0°C20 May 1975 | 19.7°C9 May 1985 | 22 / 60 |
| June | 31.7°C | 27.1°C | 35.4°C24 June 2019 | 23.0°C30 June 1974 | 18 / 62 |
| July | 31.5°C | 26.7°C | 34.6°C11 July 2019 | 22.0°C13 July 1977 | 22 / 61 |
| August | 31.6°C | 26.3°C | 34.6°C17 August 1985 | 20.2°C18 August 1991 | 21 / 61 |
| September | 31.5°C | 26.1°C | 37.5°C28 September 1983 | 20.3°C5 September 1985 | 16 / 58 |
| October | 31.5°C | 24.8°C | 37.0°C22 October 1984 | 19.0°C31 October 1974 | 18 / 57 |
| November | 30.7°C | 23.5°C | 37.5°C22 November 1986 | 18.7°C10 November 2011 | 18 / 57 |
| December | 30.2°C | 22.7°C | 33.5°C1 December 2022 | 15.7°C25 December 2016 | 19 / 54 |
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 14 to 22 years each.
See what Puttalam 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.