weather in cozumel
Weather in Cozumel in December 2017. Expect 28Â°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Cozumel in December. Check more long-term weather averages for Cozumel in December before you book your next holiday to Cancun & Riviera Maya in 2017. 1  Cozumel weather overview. 2  Cozumel monthly weather. 3  Cozumel 5-day forecast. 4  Riviera Maya holidays. 5  Riviera Maya map. 6  More destinations. 7  Back to Riviera Maya.