Bangkok Intl climate by month
Averages and records for each calendar month at Bangkok Intl, Thailand, from 1943 to 2025. The warmest month is April, averaging 35.2°C; the coolest is December at 30.7°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 31.9°C | 20.1°C | 36.7°C12 January 1947 | 11.4°C12 January 1955 | 43 / 82 |
| February | 33.1°C | 22.0°C | 38.3°C11 February 1997 | 13.9°C15 February 1946 | 40 / 81 |
| March | 34.5°C | 23.7°C | 40.0°C22 March 1983 | 14.9°C3 March 1986 | 42 / 83 |
| April | 35.2°C | 24.9°C | 41.1°C30 April 2024 | 18.3°C9 April 1943 | 42 / 83 |
| May | 34.3°C | 25.1°C | 40.8°C22 May 1983 | 20.0°C5 May 1975 | 41 / 83 |
| June | 33.2°C | 25.1°C | 40.0°C14 June 1997 | 19.3°C12 June 2005 | 42 / 83 |
| July | 32.7°C | 24.8°C | 39.3°C10 July 2005 | 21.0°C23 July 1994 | 40 / 82 |
| August | 32.5°C | 24.8°C | 37.4°C9 August 1996 | 16.6°C25 August 1986 | 42 / 83 |
| September | 31.9°C | 24.7°C | 39.4°C13 September 1997 | 20.6°C16 September 1955 | 41 / 82 |
| October | 31.6°C | 24.8°C | 38.2°C27 October 1988 | 20.2°C21 October 1994 | 41 / 82 |
| November | 30.9°C | 23.5°C | 36.8°C27 November 1997 | 15.0°C25 November 1975 | 42 / 81 |
| December | 30.7°C | 20.7°C | 36.7°C25 December 1946 | 10.0°C30 December 1975 | 42 / 81 |
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 40 to 43 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.