Measurements:
°C
°F
CURRENT WEATHER
18:53
Cancun
88°F
NW 9 mph
Feels like: 98°F
Precip: 42%
World Resorts Mexico Cancun Weather

7 Day Weather Forecast

09.28
mon
DAY
88°F
NW 7 mph
precip
26%
NIGHT
86°F
NW 11 mph
precip
31%
09.29
tue
DAY
90°F
NW 15 mph
precip
36%
NIGHT
84°F
NW 9 mph
precip
23%
09.30
wed
DAY
80°F
N 12 mph
precip
87%
NIGHT
84°F
W 15 mph
precip
24%
10.01
thu
DAY
82°F
NW 14 mph
precip
37%
NIGHT
84°F
NW 19 mph
precip
79%
10.02
fri
DAY
88°F
NW 17 mph
precip
68%
NIGHT
86°F
NW 12 mph
precip
35%
10.03
sat
DAY
86°F
NW 12 mph
precip
75%
NIGHT
86°F
NW 12 mph
precip
56%
10.04
sun
DAY
88°F
NW 9 mph
precip
30%
NIGHT
86°F
NW 11 mph
precip
21%

Cancun Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Cancun was 29.8°F. The maximum and minimum values were 29.5°F and 30.3°F respectively.

Cancun on the Weather Map

Best Time to Visit Cancun
The most sunny months:
July 15 days
April 15 days
May 13 days
The most warm months:
August 93.0 °F
July 92.9 °F
September 91.6 °F
Warmest sea temperature:
August 89.0 °F
September 88.7 °F
July 88.2 °F
The most cold months:
January 82.2 °F
February 83.8 °F
December 84.4 °F
The most rainy months:
October 8 days
September 7 days
June 7 days
The most windy months:
March 11 mph
April 11 mph
May 11 mph
more details