Cancun, Mexico: Annual Weather Averages
June is the hottest month in Cancun with an average temperature of 28°C (82°F) and the coldest is January at 23°C (73°F) with the most daily sunshine hours at 11 in August. The wettest month is September with an average of 270mm of rain. The best month to swim in the sea is in July when the average sea temperature is 29°C (84°F).
Average Temperature: Cancun
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 23 | 23 | 25 | 26 | 27 | 28 | 28 | 28 | 28 | 27 | 25 | 24 |
| °F | 73 | 73 | 77 | 79 | 81 | 82 | 82 | 82 | 82 | 81 | 77 | 75 |
Average High/Low Temperature: Cancun
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 28 | 29 | 30 | 32 | 33 | 33 | 33 | 34 | 33 | 31 | 30 | 28 |
| Low °C | 21 | 21 | 22 | 23 | 24 | 25 | 25 | 25 | 25 | 24 | 23 | 21 |
| High °F | 82 | 84 | 86 | 90 | 91 | 91 | 91 | 93 | 91 | 88 | 86 | 82 |
| Low °F | 70 | 70 | 72 | 73 | 75 | 77 | 77 | 77 | 77 | 75 | 73 | 70 |
Average Day/Night Temperature: Cancun
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day °C | 25 | 26 | 27 | 28 | 29 | 29 | 29 | 30 | 29 | 28 | 27 | 26 |
| Night °C | 22 | 23 | 24 | 26 | 26 | 27 | 27 | 27 | 27 | 25 | 23 | 23 |
| Day °F | 77 | 79 | 80 | 82 | 83 | 84 | 85 | 85 | 84 | 82 | 80 | 79 |
| Night °F | 72 | 73 | 75 | 78 | 79 | 80 | 80 | 81 | 80 | 78 | 74 | 74 |
Average Rainfall: Cancun
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 43 | 46 | 40 | 27 | 28 | 109 | 115 | 181 | 270 | 177 | 104 | 87 |
| Days | 7 | 5 | 4 | 3 | 5 | 8 | 5 | 6 | 10 | 11 | 8 | 7 |
Average Daily Sunshine Hours: Cancun
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hours | 8 | 9 | 10 | 10 | 11 | 10 | 11 | 11 | 9 | 8 | 8 | 8 |
Average Sea Temperature: Cancun
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 27 | 26 | 26 | 27 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 27 |
| °F | 81 | 79 | 79 | 81 | 82 | 82 | 84 | 84 | 84 | 84 | 82 | 81 |
Chance of windy day: Cancun
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % | 11 | 12 | 22 | 32 | 25 | 16 | 5 | 3 | 4 | 6 | 4 | 8 |
Chance of cloudy day: Cancun
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % | 13 | 12 | 5 | 9 | 18 | 34 | 19 | 16 | 26 | 28 | 18 | 14 |
