World Resorts Mexico Cozumel Weather

Cozumel sea water temperature

Current sea water temperature:
+84.4°F
Minimum sea water temperature in October: 87.1°F
Maximum sea water temperature in October: 82.2°F
Average sea water temperature in October: 84.9°F

Sea water temperature for the last 10 days:

October 4 84.4°F September 29 85.6°F
October 3 84.9°F September 28 85.6°F
October 2 85.1°F September 27 85.6°F
October 1 85.6°F September 26 85.8°F
September 30 85.8°F September 25 86.0°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:
2026
2025
2024

The average sea water temperature in September of 2026 was 86.1°F. The highest and lowest sea temperatures during the month were 86.7°F and 85.6°F.

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 85.4°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 87.5 °F
July 87.5 °F
September 86.9 °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
NW 7 mph
Feels like: +93°F
Precip.: 52%
Places in Mexico:
Name
°F
+81°F
+82°F
+84°F
+84°F
+88°F
+86°F
+88°F
+99°F
+82°F
24 Hours Forecast
Cozumel
Local time: 13:14
October 04, sunday
1500
86°F
W
8 mph
1800
84°F
W
7 mph
2100
81°F
W
7 mph
October 05, monday
0000
81°F
W
7 mph
0300
81°F
W
7 mph
0600
81°F
W
7 mph
0900
82°F
W
7 mph
1200
82°F
W
7 mph
Units of measurement: °C / °F