16.09
wed
wed
Day
86°F
W 9 mph
Precip.
13%
13%
Night
82°F
SW 8 mph
Precip.
12%
12%
17.09
thu
thu
Day
86°F
W 8 mph
Precip.
7%
7%
Night
82°F
W 5 mph
Precip.
27%
27%
18.09
fri
fri
Day
84°F
NW 7 mph
Precip.
25%
25%
Night
79°F
NE 4 mph
Precip.
22%
22%
19.09
sat
sat
Day
86°F
NW 9 mph
Precip.
5%
5%
Night
81°F
NW 6 mph
Precip.
8%
8%
20.09
sun
sun
Day
86°F
NW 9 mph
Precip.
6%
6%
Night
82°F
NW 9 mph
Precip.
8%
8%
21.09
mon
mon
Day
86°F
NW 9 mph
Precip.
36%
36%
Night
82°F
NW 12 mph
Precip.
24%
24%
22.09
tue
tue
Day
84°F
NW 11 mph
Precip.
69%
69%
Night
79°F
W 15 mph
Precip.
80%
80%
23.09
wed
wed
Day
79°F
W 14 mph
Precip.
76%
76%
Night
77°F
W 7 mph
Precip.
75%
75%
24.09
thu
thu
Day
81°F
SW 8 mph
Precip.
63%
63%
Night
82°F
SW 8 mph
Precip.
24%
24%
25.09
fri
fri
Day
82°F
W 2 mph
Precip.
52%
52%
Night
81°F
W 9 mph
Precip.
45%
45%
26.09
sat
sat
Day
77°F
NW 11 mph
Precip.
81%
81%
Night
79°F
W 19 mph
Precip.
78%
78%
27.09
sun
sun
Day
79°F
NW 25 mph
Precip.
87%
87%
Night
79°F
NW 32 mph
Precip.
85%
85%
28.09
mon
mon
Day
79°F
N 22 mph
Precip.
92%
92%
Night
81°F
N 17 mph
Precip.
59%
59%
29.09
tue
tue
Day
82°F
NW 18 mph
Precip.
49%
49%
Night
82°F
NW 13 mph
Precip.
36%
36%
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 85.8°F. The highest and lowest sea temperatures during the month were 86.5°F and 85.1°F.
Air temperature in Cancun, °F
Precipitation total in Cancun, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Cancun
Cancun on a weather map
Places in Mexico:
Name
°F
24 Hours Forecast
Cancun
Local time: 10:36
September 16, wednesday
1200
86°F
W
9 mph
9 mph
1500
86°F
W
8 mph
8 mph
1800
84°F
SW
7 mph
7 mph
2100
82°F
SW
10 mph
10 mph
September 17, thursday
0000
82°F
SW
8 mph
8 mph
0300
82°F
SW
6 mph
6 mph
0600
81°F
SW
4 mph
4 mph
0900
86°F
W
5 mph
5 mph
