World Resorts Mexico Cozumel Weather

Cozumel sea water temperature

Current sea water temperature:
+85.5°F
Minimum sea water temperature in August: 86.9°F
Maximum sea water temperature in August: 83.7°F
Average sea water temperature in August: 85.1°F

Sea water temperature for the last 10 days:

August 25 85.5°F August 20 84.7°F
August 24 85.6°F August 19 84.9°F
August 23 86.0°F August 18 84.6°F
August 22 86.0°F August 17 85.3°F
August 21 85.3°F August 16 85.6°F

When is the warmest sea in Cozumel?

Based on the data about daily sea water temperature for the last three years the warmest sea in Cozumel was noticed in September, August and October.

Monthly Sea Temperatures in Cozumel, °F

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 85.9°F. The highest and lowest sea temperatures during the month were 86.7°F and 84.9°F.

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 85.3°F. The highest and lowest sea temperatures during the month were 86.0°F and 84.6°F.

Sea water temperature in October, °F

Show year:
2025
2024
2023

The average sea water temperature in October of 2025 was 85.7°F. The highest and lowest sea temperatures during the month were 86.5°F and 84.7°F.

Best time for vacation in Cozumel

Sunniest months:
July 12 days
April 12 days
August 11 days
Warmest months:
August 87.6 °F
July 87.5 °F
September 87.0 °F
Warmest sea temp:
September 85.3 °F
August 85.1 °F
October 84.9 °F
Coldest months:
January 79.1 °F
February 80.2 °F
December 81.0 °F
Rainiest months:
October 9 days
September 8 days
June 8 days
Windiest months:
March 10.5 mph
January 10.3 mph
June 10.2 mph

Cozumel on a weather map

Cozumel
+84°F
W 8 mph
Feels like: +91°F
Precip.: 6%
Places in Mexico:
Name
°F
24 Hours Forecast
Cozumel
Local time: 09:04
August 25, tuesday
1200
88°F
W
9 mph
1500
88°F
W
8 mph
1800
86°F
W
9 mph
2100
82°F
W
9 mph
August 26, wednesday
0000
82°F
W
8 mph
0300
82°F
W
8 mph
0600
82°F
W
8 mph
0900
84°F
W
6 mph
Units of measurement: °C / °F