Cancún Weather in August

During August, Cancún experiences very high daytime temperatures of 31°C (88°F) and cooler nights around 27°C (81°F). Expect quite a bit of rainfall. Around 116 mm (4.6 in) is typical.

Rainfall in Cancún in August

You can expect rain on around 13 days based on historical patterns, with 116 mm (4.6 in) average for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Cancún in August

Daytime highs in Cancún in August reach 31°C (88°F), with nights around 27°C (81°F). Mornings and evenings are often more comfortable than the peak afternoon hours. Nights are warm at 27°C (81°F), which can make sleeping uncomfortable. Keeping windows open or using a fan can help. A cold shower before bed is also a good way to cool down. Note that these temperatures are average, but some days may be hotter. Dress in cool, breathable fabrics to stay comfortable in the heat.

Sunshine in Cancún in August

Expect a lot of sunshine this month, with about 233 hours of sun. These sunny conditions add to the overall experience.

Average water temperature in August

The water is 29°C (84°F), very warm by most standards. Comfortable to swim in, but not particularly refreshing if you're looking to cool off.

Should you favor a climate that's both dry and comfortably warm, January, February, March, April, November and December typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.