Average sea water temperature in September:
+86.1°F
| Minimum sea water temperature in September: | 88.3°F |
| Maximum sea water temperature in September: | 83.8°F |
Daily sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 87.4°F. The highest and lowest sea temperatures during the month were 88.3°F and 86.0°F.
sea water
temperature
temperature
| George Town |
monthly
weather
weather
| George Town |
current
weather
weather
| George Town |
14 days
forecast
forecast
| George Town |
Monthly sea water temperature in George Town, °F
Which Cayman Islands resorts have warmest sea in September?
| Place name | September 2026 | September 2025 |
|---|---|---|
| Grand Cayman | 87.4°F | 87.4°F |
| George Town | 87.4°F | 87.4°F |
| Little Cayman | 87.0°F | 87.5°F |
| Cayman Brac | 86.9°F | 87.6°F |
Best time for vacation in George Town
George Town on a weather map
Places in Cayman Islands:
Name
°F
24 Hours Forecast
George Town
Local time: 13:41
October 27, tuesday
1500

82°F
S
8 mph
8 mph
1800

82°F
SW
10 mph
10 mph
2100

82°F
S
11 mph
11 mph
October 28, wednesday
0000

82°F
S
9 mph
9 mph
0300

81°F
S
7 mph
7 mph
0600

81°F
S
6 mph
6 mph
0900

81°F
S
7 mph
7 mph
1200

82°F
SW
5 mph
5 mph


























