Chetumal Intl climate by month
Averages and records for each calendar month at Chetumal Intl, Mexico, from 1973 to 2025. The warmest month is August, averaging 34.2°C; the coolest is January at 29.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 29.9°C | 18.2°C | 34.9°C15 January 1996 | 9.0°C20 January 1977 | 19 / 51 |
| February | 30.5°C | 19.2°C | 36.4°C27 February 2013 | 8.0°C1 February 1995 | 16 / 51 |
| March | 31.7°C | 20.6°C | 37.5°C24 March 2024 | 7.3°C2 March 1986 | 27 / 51 |
| April | 32.9°C | 22.7°C | 38.6°C27 April 2010 | 12.0°C1 April 1987 | 24 / 50 |
| May | 33.7°C | 24.2°C | 39.7°C21 May 2007 | 17.9°C2 May 1992 | 25 / 50 |
| June | 33.5°C | 24.4°C | 40.0°C18 June 1982 | 17.8°C15 June 2005 | 12 / 51 |
| July | 33.8°C | 24.1°C | 39.0°C10 July 1978 | 20.0°C13 July 1978 | 19 / 51 |
| August | 34.2°C | 23.9°C | 39.3°C26 August 2014 | 19.3°C30 August 2009 | 18 / 51 |
| September | 34.0°C | 23.6°C | 39.9°C8 September 1986 | 15.8°C17 September 1992 | 18 / 48 |
| October | 32.7°C | 22.1°C | 38.1°C15 October 2009 | 14.7°C30 October 1990 | 27 / 51 |
| November | 31.5°C | 20.0°C | 38.7°C24 November 2000 | 10.0°C24 November 2006 | 22 / 51 |
| December | 30.1°C | 18.6°C | 39.1°C22 December 2004 | 8.0°C30 December 1980 | 21 / 52 |
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 12 to 27 years each.
See what Chetumal Intl 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.