Current sea water temperature:
+84.7°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 |
| more information | |
14 days
forecast
forecast
| Cozumel |
monthly
weather
weather
| Cozumel |
Sea water temperature for the last 10 days:
| August 5 | 84.7°F | July 31 | 85.5°F |
| August 4 | 84.7°F | July 30 | 85.3°F |
| August 3 | 84.6°F | July 29 | 85.5°F |
| August 2 | 85.3°F | July 28 | 85.1°F |
| August 1 | 85.3°F | July 27 | 84.7°F |
Monthly sea water temperature, °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:
2025
2024
2023
The average sea water temperature in August of 2025 was 85.6°F. The highest and lowest sea temperatures during the month were 86.2°F and 85.1°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.
current
weather
weather
| Cozumel |
weather in
August
August
| Cozumel |
Best time for vacation in Cozumel
Cozumel on a weather map
Places in Mexico:
Name
°F
24 Hours Forecast
Cozumel
Local time: 08:12
August 05, wednesday
0900

86°F
W
6 mph
6 mph
1200

88°F
W
7 mph
7 mph
1500

88°F
W
9 mph
9 mph
1800

86°F
W
10 mph
10 mph
2100

81°F
SW
9 mph
9 mph
August 06, thursday
0000

81°F
W
8 mph
8 mph
0300

81°F
W
7 mph
7 mph
0600

81°F
W
6 mph
6 mph





























