Mexico · 30-year monthly climate averages
Based on 30 years of climate data, the most comfortable months to visit Cancun are February, March and December, when daytime temperatures are agreeable and rainfall is relatively low.
Cancun sees its warmest weather in August, when daytime highs average around 35°C, and its coolest in January (around 28°C).
Annual precipitation totals roughly 1300mm — October is typically the wettest month (~272mm) and April the driest (~41mm).
A distinctly wetter period runs from September to November — worth planning around if you prefer dry days.
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
Daily forecast highs vs the 30-year normal — last 61 days
Each bar is one day: orange above normal, blue below.
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 28° / 20°C | 105mm | 👍 Good |
| February | 29° / 20°C | 50mm | 👍 Good |
| March | 31° / 21°C | 44mm | 👍 Good |
| April | 32° / 23°C | 41mm | 👍 Good |
| May | 34° / 24°C | 87mm | 🤔 Fair |
| June | 34° / 25°C | 138mm | ⚠️ Challenging |
| July | 34° / 25°C | 78mm | 🤔 Fair |
| August | 35° / 25°C | 88mm | 🤔 Fair |
| September | 34° / 24°C | 182mm | ⚠️ Challenging |
| October | 32° / 23°C | 272mm | ⚠️ Challenging |
| November | 30° / 22°C | 130mm | 🤔 Fair |
| December | 29° / 21°C | 86mm | 👍 Good |
January in Cancun is warm, with average daytime highs around 28°C (83°F) and nighttime lows near 20°C (68°F). Expect roughly 105mm of precipitation spread over about 9 rainy days, with a moderate amount of rain.
🎒 What to pack — light summer clothing · sunscreen and sunglasses
February in Cancun is warm, with average daytime highs around 29°C (85°F) and nighttime lows near 20°C (69°F). Expect roughly 50mm of precipitation spread over about 6 rainy days, with little rainfall.
🎒 What to pack — light summer clothing · sunscreen and sunglasses
March in Cancun is hot, with average daytime highs around 31°C (87°F) and nighttime lows near 21°C (70°F). Expect roughly 44mm of precipitation spread over about 5 rainy days, with little rainfall.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle
April in Cancun is hot, with average daytime highs around 32°C (90°F) and nighttime lows near 23°C (73°F). Expect roughly 41mm of precipitation spread over about 4 rainy days, with little rainfall.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle
May in Cancun is hot, with average daytime highs around 34°C (92°F) and nighttime lows near 24°C (75°F). Expect roughly 87mm of precipitation spread over about 7 rainy days, with a moderate amount of rain.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle
June in Cancun is hot, with average daytime highs around 34°C (93°F) and nighttime lows near 25°C (76°F). Expect roughly 138mm of precipitation spread over about 11 rainy days, and this is one of the wetter months.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle · compact umbrella or rain jacket
July in Cancun is hot, with average daytime highs around 34°C (94°F) and nighttime lows near 25°C (77°F). Expect roughly 78mm of precipitation spread over about 9 rainy days, with a moderate amount of rain.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle
August in Cancun is hot, with average daytime highs around 35°C (95°F) and nighttime lows near 25°C (76°F). Expect roughly 88mm of precipitation spread over about 10 rainy days, with a moderate amount of rain.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle
September in Cancun is hot, with average daytime highs around 34°C (93°F) and nighttime lows near 24°C (76°F). Expect roughly 182mm of precipitation spread over about 14 rainy days, and this is one of the wetter months.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle · compact umbrella or rain jacket
October in Cancun is hot, with average daytime highs around 32°C (89°F) and nighttime lows near 23°C (74°F). Expect roughly 272mm of precipitation spread over about 16 rainy days, and heavy rainfall is common — this is peak wet season territory.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle · compact umbrella or rain jacket
November in Cancun is warm, with average daytime highs around 30°C (86°F) and nighttime lows near 22°C (71°F). Expect roughly 130mm of precipitation spread over about 11 rainy days, and this is one of the wetter months.
🎒 What to pack — light summer clothing · sunscreen and sunglasses · compact umbrella or rain jacket
December in Cancun is warm, with average daytime highs around 29°C (83°F) and nighttime lows near 21°C (69°F). Expect roughly 86mm of precipitation spread over about 10 rainy days, with a moderate amount of rain.
🎒 What to pack — light summer clothing · sunscreen and sunglasses