average temperatures in riviera maya mexico in july
Weather in Cancun & Riviera Maya in July. The average maximum daytime temperature in Cancun & Riviera Maya in July is a hot 32Â°C (90Â°F) with very high heat & humidity. There are usually 7 hours of bright sunshine each day, which represents 54% of the 13 hours of daylight. The average sea temperature in and around Cancun & Riviera Maya in July is 28Â°C (82Â°F). Expect 127mm (5.0 inches) of rainfall across the whole of July with 11 days with some rain falling. Maximum UV levels will be extreme (11+ UV index) at midday when the skies are clear.