Current Sea Water Temperature:
+90.6°F
| Maximum Sea Water Temperature in September: | 91.4°F |
| Minimum Sea Water Temperature in September: | 86.6°F |
| Average water temperature in September: | 89.2°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| September 12 | 90.6°F | September 07 | 90.0°F |
| September 11 | 90.6°F | September 06 | 90.2°F |
| September 10 | 90.4°F | September 05 | 90.4°F |
| September 09 | 90.4°F | September 04 | 90.4°F |
| September 08 | 90.2°F | September 03 | 90.0°F |
When is the Warmest Sea for Cozumel?
According to our data for the last three years for Cozumel the highest average sea water temperature was in September, August and October.
Average Water Temperature by Month, °F
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Cozumel was 89.9°F. The maximum and minimum values were 88.8°F and 90.8°F respectively.
Sea Water Temperature in August
The average sea surface temperature in August 2026 for Cozumel was 89.3°F. The maximum and minimum values were 88.4°F and 90.0°F respectively.
Sea Water Temperature in October
The average sea surface temperature in October 2025 for Cozumel was 89.7°F. The maximum and minimum values were 88.6°F and 90.6°F respectively.
Mexico Resorts:
NAME
F°
| Acapulco |  |
+84 |
| Brisas de Zicatela |  |
+86 |
| Cabo San Lucas | |
+88 |
| Cancun | |
+90 |
| Ciudad Lazaro Cardenas | |
+84 |
| La Paz |  |
+82 |
| La Penita de Jaltemba | |
+88 |
| Luces en el Mar | |
+84 |
| Monte Gordo | |
+86 |
| Playa del Carmen |  |
+86 |
| Puerto Vallarta | |
+78 |
| Riviera Maya | |
+86 |
| San Jose del Cabo |  |
+86 |
| Tijuana | |
+68 |
| Tulum | |
+92 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Cozumel
Local time: 10:32
12 sep, saturday
| 1200 |  |
90°F | W 10 mph |
| 1500 | |
88°F | NW 7 mph |
| 1800 |  |
88°F | W 7 mph |
| 2100 |  |
86°F | W 10 mph |
13 sep, sunday
| 0000 | |
86°F | NW 10 mph |
| 0300 | |
88°F | NW 11 mph |
| 0600 | |
88°F | NW 10 mph |
| 0900 | |
90°F | NW 11 mph |