Cancún weather by month & the best time to visit
Mexico · coastal city break · tropical — wet & dry seasons climate
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The best time to visit Cancún is March — its sunniest month (Sunshine Score 89/100), with April and February close behind. Cancún averages about 2,850 hours of sunshine a year. Daytime highs around 28°C / 82°F and roughly 38 mm of rain in March.
When is the best time to visit Cancún?
For sunshine, the best time to visit Cancún is March, then April and February. The dullest month is June (68/100, 181 mm of rain). The full month-by-month picture is in the table below.
How sunny is Cancún?
Cancún gets a lot of sun: around 2,850 hours a year. March (89/100) is noticeably better than June (68). It ranks #45 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 1,251 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 84 | 26° / 79°F | 22° / 72°F | 63 mm | 6 | 27° / 81°F |
| February | 86 | 27° / 81°F | 22° / 72°F | 51 mm | 8 | 27° / 81°F |
| March | 89 | 28° / 82°F | 23° / 73°F | 38 mm | 10 | 28° / 82°F |
| April | 88 | 29° / 84°F | 24° / 75°F | 41 mm | 10 | 28° / 82°F |
| May | 79 | 30° / 86°F | 25° / 77°F | 92 mm | 10 | 29° / 84°F |
| June | 68 | 29° / 84°F | 26° / 79°F | 181 mm | 10 | 30° / 86°F |
| July | 80 | 30° / 86°F | 26° / 79°F | 89 mm | 10 | 30° / 86°F |
| August | 75 | 30° / 86°F | 27° / 81°F | 114 mm | 11 | 30° / 86°F |
| September | 68 | 30° / 86°F | 26° / 79°F | 166 mm | 10 | 30° / 86°F |
| October | 68 | 29° / 84°F | 25° / 77°F | 224 mm | 8 | 29° / 84°F |
| November | 73 | 27° / 81°F | 24° / 75°F | 124 mm | 7 | 29° / 84°F |
| December | 83 | 27° / 81°F | 23° / 73°F | 68 mm | 6 | 27° / 81°F |
Sea temperature in Cancún by month
The sea off Cancún is warmest in June at around 30°C / 86°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
How Cancún compares month by month: Cancún vs Mérida · Cancún vs Punta Cana · Cancún vs Cozumel · Cancún vs Tulum · all comparisons
Cancún: questions and answers
What kind of destination is Cancún?
Cancún is a coastal city break in Mexico with a tropical — wet & dry seasons climate — the sea reaches 30°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Cancún get a year?
Cancún gets about 2,850 hours of sunshine a year, at its best around March.
When is the best time to visit Cancún?
The sunniest time to visit Cancún is March, when the Sunshine Score peaks at 89/100 (with April and February close behind). Expect daytime highs around 28°C / 82°F.
What is the least sunny month in Cancún?
June is the least sunny month in Cancún, scoring 68/100 with about 181 mm of rain.
What is the sea temperature in Cancún?
The sea in Cancún ranges from about 27°C (January) to 30°C (June). Month-by-month sea temperatures are on this page.
How strong is the sun in Cancún?
The typical midday UV index in Cancún peaks around 11 (extreme) in August, easing to about 6 (high) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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