17.09
thu
thu
Day
84°F
W 7 mph
Precip.
5%
5%
Night
84°F
SW 6 mph
Precip.
18%
18%
18.09
fri
fri
Day
86°F
W 7 mph
Precip.
17%
17%
Night
86°F
W 11 mph
Precip.
17%
17%
19.09
sat
sat
Day
86°F
W 11 mph
Precip.
18%
18%
Night
86°F
NW 5 mph
Precip.
16%
16%
20.09
sun
sun
Day
86°F
W 6 mph
Precip.
5%
5%
Night
84°F
W 12 mph
Precip.
18%
18%
21.09
mon
mon
Day
86°F
W 10 mph
Precip.
10%
10%
Night
84°F
NW 9 mph
Precip.
33%
33%
22.09
tue
tue
Day
81°F
N 8 mph
Precip.
42%
42%
Night
81°F
W 7 mph
Precip.
53%
53%
23.09
wed
wed
Day
84°F
W 12 mph
Precip.
33%
33%
Night
84°F
W 13 mph
Precip.
29%
29%
sea water
temperature
temperature
| Little Cayman |
monthly
weather
weather
| Little Cayman |
current
weather
weather
| Little Cayman |
14 days
forecast
forecast
| Little Cayman |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 87.6°F. The highest and lowest sea temperatures during the month were 88.3°F and 86.5°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 86.7°F. The highest and lowest sea temperatures during the month were 87.8°F and 85.6°F.
Air temperature in Little Cayman, °F
Precipitation total in Little Cayman, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Little Cayman
Little Cayman on a weather map
Places in Cayman Islands:
Name
°F
24 Hours Forecast
Little Cayman
Local time: 08:17
September 17, thursday
0900
84°F
W
9 mph
9 mph
1200
84°F
W
7 mph
7 mph
1500
84°F
W
6 mph
6 mph
1800
84°F
SW
6 mph
6 mph
2100
84°F
W
6 mph
6 mph
September 18, friday
0000
84°F
SW
6 mph
6 mph
0300
84°F
SW
8 mph
8 mph
0600
84°F
SW
6 mph
6 mph
