How extreme does Chetumal's weather get?

The hottest, coldest, wettest and snowiest days Chetumal has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 50+ years of daily weather observations (1973–present), from the Chetumal Intl station 3 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Chetumal has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

104°F Jun 18, 1982

That is about 11°F hotter than a normal June afternoon in Chetumal (typical high near 93°F).

The three most extreme on record

1 104°F Jun 18, 1982

2 104°F Sep 8, 1986

3 103°F May 2, 1988

❄️ Coldest night

45°F Mar 2, 1986

About 25°F colder than a normal March night in Chetumal (typical low near 70°F).

The three most extreme on record

1 45°F Mar 2, 1986

2 45°F Mar 3, 1986

3 46°F Dec 30, 1980

🌧️ Most rain in one day

11.18 in Jun 16, 1995

More rain in a single day than Chetumal usually gets in the whole month of June (typical June total about 7.1 in).

The three most extreme on record

1 11.18 in Jun 16, 1995

2 10.00 in Apr 14, 1977

3 10.00 in Jul 4, 1996

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

normal range of daily temperatureshottest ever recordedcoldest ever recorded

Chetumal's record heat sits well above even a hot day for the season — June's 104°F is about 11°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, Chetumal's warmest days reach the mid-90s°F and its coldest nights drop to the mid-60s°F. But across the record it has gone as high as 104°F and as low as 45°F. A single day has delivered over 11 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Tecnologico Chetumal, inside the city.

How we build these numbers →

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