Current sea water temperature:
+84.0°F
| Minimum sea water temperature in June: | 86.7°F |
| Maximum sea water temperature in June: | 81.3°F |
| Average sea water temperature in June: | 83.9°F |
| more information | |
14 days
forecast
forecast
| Grand Cayman |
monthly
weather
weather
| Grand Cayman |
Sea water temperature for the last 10 days:
| June 12 | 84.0°F | June 7 | 84.9°F |
| June 11 | 84.4°F | June 6 | 84.7°F |
| June 10 | 84.2°F | June 5 | 84.6°F |
| June 9 | 84.7°F | June 4 | 85.3°F |
| June 8 | 84.7°F | June 3 | 84.7°F |
Monthly sea water temperature, °F
When is the warmest sea in Grand Cayman?
Based on the data about daily sea water temperature for the last three years the warmest sea in Grand Cayman was noticed in September, August and October.
Monthly Sea Temperatures in Grand Cayman, °F
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 87.4°F. The highest and lowest sea temperatures during the month were 87.8°F and 86.9°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 86.9°F. The highest and lowest sea temperatures during the month were 87.4°F and 85.8°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 86.6°F. The highest and lowest sea temperatures during the month were 88.3°F and 85.3°F.
current
weather
weather
| Grand Cayman |
weather in
June
June
| Grand Cayman |
Best time for vacation in Grand Cayman
Grand Cayman on a weather map
Places in Cayman Islands:
Name
°F
24 Hours Forecast
Grand Cayman
Local time: 03:08
June 12, friday
0600
82°F
NW
15 mph
15 mph
0900
82°F
W
14 mph
14 mph
1200
82°F
W
16 mph
16 mph
1500
82°F
W
12 mph
12 mph
1800
82°F
SW
18 mph
18 mph
2100
82°F
W
16 mph
16 mph
June 13, saturday
0000
82°F
W
17 mph
17 mph
0300
84°F
W
16 mph
16 mph
