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 |
current
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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: 12:45
October 27, tuesday
1500

82°F
NW
4 mph
4 mph
1800

82°F
W
4 mph
4 mph
2100

82°F
W
4 mph
4 mph
October 28, wednesday
0000

82°F
W
4 mph
4 mph
0300

81°F
SW
6 mph
6 mph
0600

81°F
SW
4 mph
4 mph
0900

82°F
N
2 mph
2 mph
1200

81°F
N
5 mph
5 mph

























