Cancún weather in August
August is a fair month to visit Cancún: highs of 30°C (87°F) and about 114 mm (4.5 in) of rain on average. Nights average 27°C (80°F) and cloud cover 52% (NASA POWER, 2001–2025 averages). It is the 5th wettest month of the year and the warmest. Compared with July, it is about as warm and wetter; September brings highs of 30°C (85°F) and 166 mm (6.5 in) of rain.
Is August a good time to visit Cancún?
fair month Weather score 71/100.
August is a fair month in Cancún. The weather is usually best in Dec–May.
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Does it rain a lot in Cancún in August?
Some rain is normal: about 114 mm (4.5 in) falls in an average August. It is the 5th wettest month of the year.
How warm is Cancún in August?
Days average 30°C (87°F) and nights 27°C (80°F).
Cancún weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 26°C (79°F) | 22°C (71°F) | 63 mm | 53% | best |
| February | 27°C (81°F) | 22°C (72°F) | 51 mm | 43% | best |
| March | 28°C (82°F) | 23°C (73°F) | 38 mm | 38% | best |
| April | 29°C (85°F) | 24°C (75°F) | 41 mm | 37% | best |
| May | 30°C (86°F) | 25°C (77°F) | 92 mm | 44% | best |
| June | 30°C (85°F) | 26°C (79°F) | 181 mm | 59% | least pleasant |
| July | 30°C (86°F) | 26°C (79°F) | 89 mm | 50% | fair |
| August | 30°C (87°F) | 27°C (80°F) | 114 mm | 52% | fair |
| September | 30°C (85°F) | 26°C (79°F) | 166 mm | 58% | least pleasant |
| October | 29°C (83°F) | 25°C (78°F) | 224 mm | 58% | least pleasant |
| November | 27°C (81°F) | 24°C (74°F) | 124 mm | 53% | fair |
| December | 27°C (80°F) | 23°C (73°F) | 68 mm | 50% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
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