Average sea water temperature in September:
+86.4°F
| Minimum sea water temperature in September: | 88.3°F |
| Maximum sea water temperature in September: | 84.0°F |
Daily sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 86.9°F. The highest and lowest sea temperatures during the month were 88.2°F and 85.8°F.
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| Cayman Brac |
monthly
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| Cayman Brac |
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| Cayman Brac |
14 days
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| Cayman Brac |
Monthly sea water temperature in Cayman Brac, °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 Cayman Brac
Cayman Brac on a weather map
Places in Cayman Islands:
Name
°F
24 Hours Forecast
Cayman Brac
Local time: 10:28
October 07, wednesday
1200

84°F
NW
7 mph
7 mph
1500

84°F
NW
6 mph
6 mph
1800

84°F
NW
6 mph
6 mph
2100

84°F
NW
7 mph
7 mph
October 08, thursday
0000

84°F
NW
6 mph
6 mph
0300

82°F
NW
6 mph
6 mph
0600

82°F
W
9 mph
9 mph
0900

84°F
W
11 mph
11 mph

























