Cozumel weather by month & the best time to visit
Mexico · beach resort · tropical — wet & dry seasons climate
The best time to visit Cozumel is March — its sunniest month (Sunshine Score 88/100), with April and February close behind. Cozumel averages about 2,855 hours of sunshine a year. Daytime highs around 27°C / 81°F and roughly 42 mm of rain in March.
When is the best time to visit Cozumel?
For sunshine, the best time to visit Cozumel is March, then April and February. The dullest month is June (68/100, 177 mm of rain). The full month-by-month picture is in the table below.
How sunny is Cozumel?
Cozumel gets a lot of sun: around 2,855 hours a year. March (88/100) is noticeably better than June (68). It ranks #44 of 62 destinations in Mexico for annual sunshine, below the national median of 3,138 hours. Rain has a clear season: the wettest stretch, around October, carries about 41% of the annual 1,282 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 85 | 26° / 79°F | 23° / 73°F | 61 mm | 7 | 28° / 82°F |
| February | 87 | 27° / 81°F | 24° / 75°F | 47 mm | 8 | 27° / 81°F |
| March | 88 | 27° / 81°F | 24° / 75°F | 42 mm | 10 | 28° / 82°F |
| April | 88 | 28° / 82°F | 25° / 77°F | 42 mm | 11 | 28° / 82°F |
| May | 78 | 29° / 84°F | 26° / 79°F | 100 mm | 10 | 29° / 84°F |
| June | 68 | 29° / 84°F | 27° / 81°F | 177 mm | 10 | 30° / 86°F |
| July | 78 | 29° / 84°F | 27° / 81°F | 96 mm | 11 | 30° / 86°F |
| August | 73 | 30° / 86°F | 27° / 81°F | 125 mm | 11 | 31° / 88°F |
| September | 68 | 29° / 84°F | 27° / 81°F | 170 mm | 10 | 31° / 88°F |
| October | 68 | 29° / 84°F | 26° / 79°F | 224 mm | 8 | 30° / 86°F |
| November | 72 | 27° / 81°F | 25° / 77°F | 129 mm | 7 | 29° / 84°F |
| December | 83 | 27° / 81°F | 24° / 75°F | 69 mm | 6 | 28° / 82°F |
Sea temperature in Cozumel by month
The sea off Cozumel is warmest in August at around 31°C / 88°F, and coolest in February 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
How Cozumel compares month by month: Cozumel vs Mérida · Cozumel vs Cancún · Cozumel vs Chetumal · Cozumel vs Tulum · all comparisons
Cozumel: questions and answers
What kind of destination is Cozumel?
Cozumel is a beach resort in Mexico with a tropical — wet & dry seasons climate — the sea reaches 31°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Cozumel get a year?
Cozumel gets about 2,855 hours of sunshine a year, at its best around March.
When is the best time to visit Cozumel?
The sunniest time to visit Cozumel is March, when the Sunshine Score peaks at 88/100 (with April and February close behind). Expect daytime highs around 27°C / 81°F.
What is the least sunny month in Cozumel?
June is the least sunny month in Cozumel, scoring 68/100 with about 177 mm of rain.
What is the sea temperature in Cozumel?
The sea in Cozumel ranges from about 27°C (February) to 31°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Cozumel?
The typical midday UV index in Cozumel peaks around 11 (extreme) in April, easing to about 6 (high) in December. Month-by-month midday UV values are in the UV column of the table on this page.
Put the Cozumel sunshine badge on your site
A compact badge showing Cozumel's sunshine at a glance — free to embed under CC BY 4.0. Paste this wherever you'd like it to appear:
Live preview — this is exactly what your readers see: