World Resorts Mexico Cancun Weather

Cancun sea water temperature

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

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

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.

Best time for vacation in Cancun

Sunniest months:
July 15 days
April 15 days
May 13 days
Warmest months:
August 88.8 °F
July 88.7 °F
September 87.5 °F
Warmest sea temp:
August 85.1 °F
September 84.8 °F
July 84.4 °F
Coldest months:
January 78.9 °F
February 80.5 °F
December 81.0 °F
Rainiest months:
October 8 days
September 8 days
June 7 days
Windiest months:
March 11.6 mph
April 11.3 mph
May 10.7 mph

Cancun on a weather map

Cancun
+79°F
W 5 mph
Feels like: +86°F
Precip.: 13%
Places in Mexico:
Name
°F
+81°F
+79°F
+81°F
+84°F
+77°F
+77°F
+77°F
+79°F
+70°F
+77°F
24 Hours Forecast
Cancun
Local time: 01:29
July 16, thursday
0300
79°F
SW
8 mph
0600
81°F
W
9 mph
0900
84°F
W
10 mph
1200
88°F
W
11 mph
1500
88°F
W
11 mph
1800
86°F
W
9 mph
2100
82°F
SW
9 mph
July 17, friday
0000
82°F
SW
9 mph
Units of measurement: °C / °F