Chanthaburi climate by month
Averages and records for each calendar month at Chanthaburi, Thailand, from 1951 to 2025. The warmest month is April, averaging 33.8°C; the coolest is August at 30.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 32.2°C | 20.7°C | 37.7°C9 January 1993 | 11.2°C12 January 1955 | 69 / 75 |
| February | 32.6°C | 21.7°C | 37.7°C7 February 1953 | 14.8°C21 February 1962 | 68 / 75 |
| March | 33.0°C | 23.4°C | 37.2°C27 March 1952 | 14.5°C3 March 1986 | 70 / 75 |
| April | 33.8°C | 23.9°C | 38.8°C13 April 1988 | 17.9°C3 April 2022 | 70 / 75 |
| May | 32.7°C | 24.6°C | 40.9°C5 May 1989 | 21.4°C9 May 1953 | 72 / 75 |
| June | 31.6°C | 24.4°C | 39.0°C29 June 1988 | 20.2°C5 June 1988 | 72 / 75 |
| July | 31.1°C | 24.2°C | 37.1°C18 July 1989 | 19.9°C30 July 1993 | 70 / 75 |
| August | 30.9°C | 24.2°C | 37.0°C19 August 1987 | 19.0°C25 August 1957 | 69 / 75 |
| September | 31.0°C | 23.8°C | 35.9°C20 September 2015 | 20.5°C18 September 1971 | 69 / 74 |
| October | 31.8°C | 23.4°C | 35.8°C27 October 2019 | 18.7°C30 October 1991 | 68 / 74 |
| November | 31.9°C | 22.5°C | 36.3°C18 November 2006 | 13.0°C23 November 1954 | 67 / 74 |
| December | 31.5°C | 21.0°C | 36.0°C31 December 1951 | 8.9°C16 December 1954 | 68 / 74 |
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 67 to 72 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.