Current sea water temperature:
+86.5°F
| Minimum sea water temperature in September: | 88.3°F |
| Maximum sea water temperature in September: | 84.0°F |
| Average sea water temperature in September: | 86.4°F |
| more information | |
14 days
forecast
forecast
| Cayman Brac |
monthly
weather
weather
| Cayman Brac |
Sea water temperature for the last 10 days:
| September 17 | 86.5°F | September 12 | 87.8°F |
| September 16 | 87.1°F | September 11 | 87.8°F |
| September 15 | 87.4°F | September 10 | 87.4°F |
| September 14 | 87.6°F | September 9 | 87.6°F |
| September 13 | 88.0°F | September 8 | 87.4°F |
Monthly sea water temperature, °F
When is the warmest sea in Cayman Brac?
Based on the data about daily sea water temperature for the last three years the warmest sea in Cayman Brac was noticed in September, August and October.
Monthly Sea Temperatures in Cayman Brac, °F
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 87.5°F. The highest and lowest sea temperatures during the month were 88.2°F and 86.5°F.
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 87.3°F. The highest and lowest sea temperatures during the month were 87.8°F and 86.4°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 86.8°F. The highest and lowest sea temperatures during the month were 87.8°F and 85.6°F.
current
weather
weather
| Cayman Brac |
weather in
September
September
| Cayman Brac |
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: 07:27
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


























