Cancun weather in August 2025

Expect 91°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Cancun in August. Check more long-term weather averages for Cancun in August before you book your next holiday to Mexico's Caribbean Coast in 2025/2026.

  • 91°F maximum daytime temperature in August in Cancun91
    91°F max day temperature
  • 7 hours of sunshine per day
  • 13 days with some rainfall in August in Cancun13
    13 days with some rainfall
  • 73°F minimum night-time temperature in August in Cancun73
    73°F min night temperature
  • 13 hours of daylight per day in August in Cancun13
    13 hours of daylight per day
  • Very high heat & humidity in August in CancunVH
    Very High heat & humidity
  • 5.8 inches monthly rainfall in August in Cancun5.8
    5.8 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Cancun11
    11+ (Extreme) UV index
  • 84°F sea temperature in August in Cancun84
    84°F sea temperature

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The August weather guide for Mexico's Caribbean Coast (Cancun) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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More about Mexico's Caribbean Coast

How hot is it in Cancun in August?

Daytime temperatures usually reach 91°F in Cancun in August with very high heat and humidity, falling to 73°F at night.

How sunny is it in Cancun in August?

There are normally 7 hours of bright sunshine each day in Cancun in August - that's 55% of daylight hours.

How warm is the sea around Cancun in August?

The average sea temperature around Cancun in August is 84°F.

Does it rain in Cancun in August?

There are usually 13 days with some rain in Cancun in August and the average monthly rainfall is 5.8 inches.

What is the chance of a hurricane in Cancun in August?

On average less than 1 day in August in Cancun is likely to be affected by the passage of one or more tropical storms.

Cancun August sunrise & sunset times

Browse the sunrise and sunset times for Cancun in August 2025. Select a month to view Cancun sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 06:21 19:26
Saturday, 16th August 2025 06:26 19:16
Sunday, 31st August 2025 06:31 19:04

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