Measurements:
°C
°F
Cancun
80°F
W 6 mph
Feels like: 86°F
Precip: 0%
World Resorts Mexico Cancun Weather

7 Day Weather Forecast

12.17
wed
DAY
90°F
W 9 mph
precip
0%
NIGHT
78°F
NW 7 mph
precip
100%
12.18
thu
DAY
88°F
NW 9 mph
precip
0%
NIGHT
82°F
NW 4 mph
precip
0%
12.19
fri
DAY
90°F
NW 0 mph
precip
0%
NIGHT
80°F
W 5 mph
precip
0%
12.20
sat
DAY
82°F
W 9 mph
precip
100%
NIGHT
80°F
W 8 mph
precip
83%
12.21
sun
DAY
82°F
W 11 mph
precip
100%
NIGHT
80°F
SW 11 mph
precip
0%
12.22
mon
DAY
82°F
W 13 mph
precip
100%
NIGHT
78°F
SW 11 mph
precip
76%
12.23
tue
DAY
78°F
W 13 mph
precip
100%
NIGHT
76°F
W 9 mph
precip
100%

Cancun Sea Water Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for Cancun was 27.8°F. The maximum and minimum values were 27.4°F and 28.1°F respectively.

Cancun on the Weather Map

Best Time to Visit Cancun
The most sunny months:
July 15 days
April 15 days
May 14 days
The most warm months:
August 93.1 °F
July 93.0 °F
September 91.7 °F
Warmest sea temperature:
August 89.0 °F
September 88.7 °F
July 88.2 °F
The most cold months:
January 82.1 °F
February 84.0 °F
December 84.3 °F
The most rainy months:
October 8 days
September 8 days
June 7 days
The most windy months:
March 11 mph
April 11 mph
May 11 mph