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Chetumal, Quintana Roo Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Chetumal, Quintana Roo?
Chetumal, Quintana Roo gets 1131 mm of precipitation a year over about 99 rainy days. July is the warmest month (average high 34°C) and January the coldest (average low 18°C).
Tropical savanna climate
Chetumal, Quintana Roo has hot summers and hot winters. Daytime highs range from about 30°C in January to 35°C in August. October is usually the wettest month.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 19° | 31° |
| Spring | Mar–May | 23° | 33° |
| Summer | Jun–Aug | 24° | 34° |
| Autumn | Sep–Nov | 22° | 33° |
How much rain does Chetumal get?
Chetumal gets 1131 mm of precipitation in an average year, spread over about 99 days with measurable rain. That is more rainy days than 86% of Mexico.
October is the wettest month, with 191 mm. February is the driest, with 18 mm. October has the most rainy days, about 14.
The longest dry spell in the last five years lasted 30 days, to March 21, 2024.
Chetumal weather by month
Chetumal weather in January
In January, Chetumal averages a high of 31°C and a low of 18°C. It gets 56 mm of precipitation over about 7 rainy days. Estimated sunshine is 58% of daylight hours, derived from ERA5 cloud cover. The January record high is 35°C (1996) and the record low is 9°C (1996).
Chetumal weather in February
In February, Chetumal averages a high of 31°C and a low of 19°C. It gets 18 mm of precipitation over about 4 rainy days. Estimated sunshine is 67% of daylight hours, derived from ERA5 cloud cover. The February record high is 37°C (2013) and the record low is 8°C (1995).
Chetumal weather in March
In March, Chetumal averages a high of 32°C and a low of 21°C. It gets 22 mm of precipitation over about 3 rainy days. Estimated sunshine is 68% of daylight hours, derived from ERA5 cloud cover. The March record high is 38°C (2024) and the record low is 7°C (1986).
Chetumal weather in April
In April, Chetumal averages a high of 33°C and a low of 23°C. It gets 32 mm of precipitation over about 3 rainy days. Estimated sunshine is 61% of daylight hours, derived from ERA5 cloud cover. The April record high is 38°C (2010) and the record low is 12°C (1987).
Chetumal weather in May
In May, Chetumal averages a high of 34°C and a low of 24°C. It gets 78 mm of precipitation over about 6 rainy days. Estimated sunshine is 46% of daylight hours, derived from ERA5 cloud cover. The May record high is 39°C (1988) and the record low is 18°C (1992).
Chetumal weather in June
In June, Chetumal averages a high of 34°C and a low of 25°C. It gets 167 mm of precipitation over about 11 rainy days. Estimated sunshine is 35% of daylight hours, derived from ERA5 cloud cover. The June record high is 40°C (1982) and the record low is 18°C (2005).
Chetumal weather in July
In July, Chetumal averages a high of 34°C and a low of 24°C. It gets 121 mm of precipitation over about 10 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The July record high is 39°C (1984) and the record low is 20°C (1979).
Chetumal weather in August
In August, Chetumal averages a high of 34°C and a low of 24°C. It gets 119 mm of precipitation over about 11 rainy days. Estimated sunshine is 37% of daylight hours, derived from ERA5 cloud cover. The August record high is 39°C (2014) and the record low is 19°C (2009).
Chetumal weather in September
In September, Chetumal averages a high of 34°C and a low of 24°C. It gets 172 mm of precipitation over about 13 rainy days. Estimated sunshine is 33% of daylight hours, derived from ERA5 cloud cover. The September record high is 40°C (1986) and the record low is 16°C (1992).
Chetumal weather in October
In October, Chetumal averages a high of 33°C and a low of 23°C. It gets 191 mm of precipitation over about 14 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The October record high is 38°C (2009) and the record low is 14°C (1990).
Chetumal weather in November
In November, Chetumal averages a high of 32°C and a low of 20°C. It gets 115 mm of precipitation over about 10 rainy days. Estimated sunshine is 46% of daylight hours, derived from ERA5 cloud cover. The November record high is 39°C (2000) and the record low is 10°C (2006).
Chetumal weather in December
In December, Chetumal averages a high of 31°C and a low of 19°C. It gets 41 mm of precipitation over about 7 rainy days. Estimated sunshine is 48% of daylight hours, derived from ERA5 cloud cover. The December record high is 39°C (2004) and the record low is 8°C (1980).
Sunshine, humidity and wind in Chetumal
March is the sunniest month in Chetumal, with estimated sunshine of 68% of daylight hours from ERA5 cloud cover. September is the cloudiest, at 33%. The annual cloud-cover estimate is 48% of daylight hours; it is not a measurement of sunshine duration. Chetumal is cloudier than 68% of Mexico.
Humidity peaks in November at 84% and is lowest in April at 75%.
Chetumal has about 131 days a year above 32°C. Chetumal is hotter than 63% of Mexico.
Chetumal weather records
These records cover CHETUMAL INTL during 1973–2025. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Chetumal station is 40°C, on June 18, 1982. The coldest is 7°C, on March 2, 1986.
The wettest day in the available station history brought 254 mm of precipitation, on April 14, 1977.
15 all-time records have been set at the station since 1973.
The best time to visit Chetumal
Winter (December–February) is hot, with average highs around 31°C and lows near 19°C.
Spring (March–May) is hot, with average highs around 33°C and lows near 23°C.
Summer (June–August) is hot, with average highs around 34°C and lows near 25°C. It can feel humid.
Autumn (September–November) is hot, with average highs around 33°C and lows near 22°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 18° | 31° | 56 mm | 7 | 82% | 58% | 35° | 9° |
| February | 19° | 31° | 18 mm | 4 | 78% | 67% | 37° | 8° |
| March | 21° | 32° | 22 mm | 3 | 76% | 68% | 38° | 7° |
| April | 23° | 33° | 32 mm | 3 | 75% | 61% | 38° | 12° |
| May | 24° | 34° | 78 mm | 6 | 78% | 46% | 39° | 18° |
| June | 25° | 34° | 167 mm | 11 | 82% | 35% | 40° | 18° |
| July | 24° | 34° | 121 mm | 10 | 82% | 36% | 39° | 20° |
| August | 24° | 34° | 119 mm | 11 | 83% | 37% | 39° | 19° |
| September | 24° | 34° | 172 mm | 13 | 83% | 33% | 40° | 16° |
| October | 23° | 33° | 191 mm | 14 | 82% | 36% | 38° | 14° |
| November | 20° | 32° | 115 mm | 10 | 84% | 46% | 39° | 10° |
| December | 19° | 31° | 41 mm | 7 | 83% | 48% | 39° | 8° |
Station: CHETUMAL INTL, 3 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1973–2025; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Chetumal climate questions
How much rain does Chetumal get?
Chetumal gets 1131 mm of precipitation in an average year, over about 99 rainy days.
What is the wettest month in Chetumal?
October is the wettest month in Chetumal, with 191 mm. February is the driest, with 18 mm.
How many rainy days does Chetumal have a year?
Chetumal has about 99 days with measurable rain in an average year. October has the most, about 14.
What is the hottest month in Chetumal?
July is the warmest month in Chetumal, with an average high of 34°C.
What is the coldest month in Chetumal?
January is the coldest month in Chetumal, with an average low of 18°C.
What is the record high temperature in Chetumal?
Within the available 1973–2025 station history, the record high at the Chetumal station is 40°C, set on June 18, 1982. The record low is 7°C, on March 2, 1986.
What is the sunniest month in Chetumal?
March is the sunniest month in Chetumal, with estimated sunshine of 68% of daylight hours from ERA5 cloud cover. September is the cloudiest.