World Resorts Cayman Islands Little Cayman Weather

Little Cayman sea water temperature

Current sea water temperature:
+81.7°F
Minimum sea water temperature in January: 82.9°F
Maximum sea water temperature in January: 77.0°F
Average sea water temperature in January: 80.9°F

Sea water temperature for the last 10 days:

January 1 81.7°F December 27 82.4°F
December 31 81.9°F December 26 82.6°F
December 30 82.0°F December 25 82.8°F
December 29 82.0°F December 24 83.1°F
December 28 82.4°F December 23 83.1°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.

Best time for vacation in Little Cayman

Sunniest months:
March 12 days
July 12 days
February 11 days
Warmest months:
August 87.0 °F
July 86.8 °F
September 86.7 °F
Warmest sea temp:
September 86.3 °F
August 86.2 °F
October 85.7 °F
Coldest months:
January 79.8 °F
February 80.1 °F
March 80.6 °F
Rainiest months:
October 7 days
May 6 days
August 5 days
Windiest months:
December 16.6 mph
November 16.1 mph
January 15.5 mph

Little Cayman on a weather map

Little Cayman
+73°F
S 17 mph
Feels like: +77°F
Precip.: 0%
Places in Cayman Islands:
Name
°F
+77°F
+77°F
+73°F
+73°F
24 Hours Forecast
Little Cayman
Local time: 11:34
January 01, thursday
1200
73°F
S
17 mph
1500
75°F
S
15 mph
1800
75°F
SW
14 mph
2100
75°F
SW
16 mph
January 02, friday
0000
75°F
SW
18 mph
0300
73°F
SW
21 mph
0600
73°F
SW
19 mph
0900
73°F
SW
17 mph
Units of measurement: °C / °F