Surin climate by month
Averages and records for each calendar month at Surin, Thailand, from 1951 to 2026. The warmest month is April, averaging 36.1°C; the coolest is December at 30.1°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 31.1°C | 17.5°C | 37.0°C30 January 2005 | 6.4°C17 January 1967 | 70 / 76 |
| February | 33.4°C | 19.8°C | 38.9°C18 February 2005 | 8.0°C8 February 2016 | 71 / 76 |
| March | 35.4°C | 22.6°C | 40.8°C26 March 1958 | 11.0°C1 March 1963 | 69 / 76 |
| April | 36.1°C | 24.2°C | 43.5°C30 April 2024 | 15.2°C15 April 1952 | 70 / 76 |
| May | 34.6°C | 24.4°C | 41.6°C3 May 1980 | 18.3°C3 May 2022 | 71 / 76 |
| June | 33.5°C | 24.1°C | 39.5°C14 June 2024 | 19.8°C17 June 1961 | 74 / 76 |
| July | 32.7°C | 23.9°C | 38.2°C5 July 1983 | 19.6°C12 July 1964 | 72 / 76 |
| August | 32.3°C | 23.8°C | 37.1°C26 August 1951 | 19.8°C27 August 1961 | 72 / 76 |
| September | 31.7°C | 23.4°C | 36.7°C10 September 1953 | 19.0°C1 September 1966 | 70 / 76 |
| October | 31.2°C | 22.7°C | 35.8°C12 October 1951 | 16.3°C31 October 1958 | 68 / 75 |
| November | 30.8°C | 20.3°C | 36.6°C15 November 2024 | 11.9°C27 November 1956 | 68 / 75 |
| December | 30.1°C | 17.8°C | 35.9°C2 December 2015 | 8.2°C30 December 1975 | 69 / 75 |
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 68 to 74 years each.
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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.