World Resorts Mexico Cancun Weather

Cancun sea water temperature

Current sea water temperature:
+79.5°F
Minimum sea water temperature in March: 81.5°F
Maximum sea water temperature in March: 77.7°F
Average sea water temperature in March: 79.7°F

Sea water temperature for the last 10 days:

March 16 79.5°F March 11 79.9°F
March 15 80.2°F March 10 79.9°F
March 14 79.9°F March 9 80.1°F
March 13 79.7°F March 8 79.7°F
March 12 79.5°F March 7 80.6°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:
2025
2024
2023

The average sea water temperature in July of 2025 was 84.5°F. The highest and lowest sea temperatures during the month were 85.8°F and 83.7°F.

Best time for vacation in Cancun

Sunniest months:
July 15 days
April 15 days
May 14 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 11.8 mph
April 11.5 mph
May 10.8 mph

Cancun on a weather map

Cancun
+79°F
NW 4 mph
Feels like: +84°F
Precip.: 0%
Places in Mexico:
Name
°F
+73°F
+70°F
+79°F
+79°F
+70°F
+70°F
+75°F
+63°F
+79°F
+64°F
+79°F
24 Hours Forecast
Cancun
Local time: 01:00
March 17, tuesday
0300
77°F
W
1 mph
0600
75°F
SW
6 mph
0900
79°F
SW
9 mph
1200
81°F
SW
9 mph
1500
79°F
SW
8 mph
1800
77°F
S
12 mph
2100
75°F
SW
20 mph
March 18, wednesday
0000
73°F
SW
16 mph
Units of measurement: °C / °F