Current sea water temperature:
+84.0°F
| Minimum sea water temperature in July: | 86.2°F |
| Maximum sea water temperature in July: | 81.5°F |
| Average sea water temperature in July: | 84.4°F |
| more information | |
14 days
forecast
forecast
| Cancun |
monthly
weather
weather
| Cancun |
Sea water temperature for the last 10 days:
| July 15 | 84.0°F | July 10 | 85.1°F |
| July 14 | 84.2°F | July 9 | 84.6°F |
| July 13 | 84.4°F | July 8 | 85.3°F |
| July 12 | 84.4°F | July 7 | 85.3°F |
| July 11 | 84.2°F | July 6 | 84.9°F |
Monthly sea water temperature, °F
When is the warmest sea in Cancun?
Based on the data about daily sea water temperature for the last three years the warmest sea in Cancun was noticed in August, September and July.
Monthly Sea Temperatures in Cancun, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 85.4°F. The highest and lowest sea temperatures during the month were 86.0°F and 84.9°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 85.0°F. The highest and lowest sea temperatures during the month were 85.8°F and 84.4°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 84.6°F. The highest and lowest sea temperatures during the month were 85.3°F and 84.0°F.
current
weather
weather
| Cancun |
weather in
July
July
| Cancun |
Best time for vacation in Cancun
Cancun on a weather map
Places in Mexico:
Name
°F
24 Hours Forecast
Cancun
Local time: 01:29
July 16, thursday
0300

79°F
SW
8 mph
8 mph
0600

81°F
W
9 mph
9 mph
0900

84°F
W
10 mph
10 mph
1200

88°F
W
11 mph
11 mph
1500

88°F
W
11 mph
11 mph
1800

86°F
W
9 mph
9 mph
2100

82°F
SW
9 mph
9 mph
July 17, friday
0000

82°F
SW
9 mph
9 mph



























