Current sea water temperature:
+84.6°F
| Minimum sea water temperature in May: | 86.2°F |
| Maximum sea water temperature in May: | 80.8°F |
| Average sea water temperature in May: | 83.2°F |
| more information | |
14 days
forecast
forecast
| Little Cayman |
monthly
weather
weather
| Little Cayman |
Sea water temperature for the last 10 days:
| May 16 | 84.6°F | May 11 | 84.2°F |
| May 15 | 84.6°F | May 10 | 83.8°F |
| May 14 | 84.7°F | May 9 | 83.7°F |
| May 13 | 84.6°F | May 8 | 83.8°F |
| May 12 | 83.8°F | May 7 | 83.7°F |
Monthly sea water temperature, °F
When is the warmest sea in Little Cayman?
Based on the data about daily sea water temperature for the last three years the warmest sea in Little Cayman was noticed in September, August and October.
Monthly Sea Temperatures in Little Cayman, °F
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 87.5°F. The highest and lowest sea temperatures during the month were 88.0°F and 87.1°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 87.2°F. The highest and lowest sea temperatures during the month were 88.0°F and 86.2°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 86.7°F. The highest and lowest sea temperatures during the month were 87.8°F and 85.6°F.
current
weather
weather
| Little Cayman |
weather in
May
May
| Little Cayman |
Best time for vacation in Little Cayman
Little Cayman on a weather map
Places in Cayman Islands:
Name
°F
24 Hours Forecast
Little Cayman
Local time: 18:34
May 16, saturday
2100

82°F
SW
7 mph
7 mph
May 17, sunday
0000

82°F
W
11 mph
11 mph
0300

82°F
W
12 mph
12 mph
0600

82°F
W
15 mph
15 mph
0900

82°F
W
15 mph
15 mph
1200

82°F
W
14 mph
14 mph
1500

82°F
W
13 mph
13 mph
1800

82°F
W
11 mph
11 mph


























