Chetumal weather by month & the best time to visit
Mexico · beach resort · tropical — wet & dry seasons climate

The best time to visit Chetumal is February — its sunniest month (Sunshine Score 86/100), with March and April close behind. Chetumal averages about 2,483 hours of sunshine a year. Daytime highs around 28°C / 82°F and roughly 40 mm of rain in February.
When is the best time to visit Chetumal?
For sunshine, the best time to visit Chetumal is February, then March and April. The dullest month is June (66/100, 201 mm of rain). The full month-by-month picture is in the table below.
How sunny is Chetumal?
Chetumal gets a moderate 2,483 hours of sunshine a year. February (86/100) is noticeably better than June (66). It ranks #58 of 62 destinations in Mexico for annual sunshine, below the national median of 3,138 hours. The year's 1,392 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 81 | 27° / 81°F | 22° / 72°F | 68 mm | 7 | 27° / 81°F |
| February | 86 | 28° / 82°F | 22° / 72°F | 40 mm | 8 | 27° / 81°F |
| March | 86 | 29° / 84°F | 23° / 73°F | 38 mm | 10 | 29° / 84°F |
| April | 86 | 31° / 88°F | 25° / 77°F | 39 mm | 10 | 30° / 86°F |
| May | 70 | 31° / 88°F | 26° / 79°F | 130 mm | 9 | 31° / 88°F |
| June | 66 | 30° / 86°F | 26° / 79°F | 201 mm | 9 | 31° / 88°F |
| July | 71 | 30° / 86°F | 26° / 79°F | 120 mm | 9 | 31° / 88°F |
| August | 66 | 30° / 86°F | 26° / 79°F | 154 mm | 10 | 32° / 90°F |
| September | 66 | 30° / 86°F | 26° / 79°F | 172 mm | 9 | 32° / 90°F |
| October | 66 | 29° / 84°F | 25° / 77°F | 221 mm | 8 | 30° / 86°F |
| November | 70 | 28° / 82°F | 23° / 73°F | 128 mm | 7 | 29° / 84°F |
| December | 79 | 27° / 81°F | 22° / 72°F | 81 mm | 6 | 27° / 81°F |
Sea temperature in Chetumal by month
The sea off Chetumal is warmest in August at around 32°C / 90°F, and coolest in January at 27°C / 81°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Head-to-head
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Chetumal: questions and answers
What kind of destination is Chetumal?
Chetumal is a beach resort in Mexico with a tropical — wet & dry seasons climate — the sea reaches 32°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Chetumal get a year?
Chetumal gets about 2,483 hours of sunshine a year, at its best around February.
When is the best time to visit Chetumal?
The sunniest time to visit Chetumal is February, when the Sunshine Score peaks at 86/100 (with March and April close behind). Expect daytime highs around 28°C / 82°F.
What is the least sunny month in Chetumal?
June is the least sunny month in Chetumal, scoring 66/100 with about 201 mm of rain.
What is the sea temperature in Chetumal?
The sea in Chetumal ranges from about 27°C (January) to 32°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Chetumal?
The typical midday UV index in Chetumal peaks around 10 (very high) in March, easing to about 6 (high) in December. Month-by-month midday UV values are in the UV column of the table on this page.
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