World Resorts Cayman Islands Little Cayman Weather

Little Cayman Sea Temperature in September

Average sea water temperature in September:
+86.3°F
Minimum sea water temperature in September: 88.2°F
Maximum sea water temperature in September: 84.0°F

Daily 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.

Monthly sea water temperature in Little Cayman, °F

Which Cayman Islands resorts have warmest sea in September?

Place name September 2025 September 2024
Cayman Brac 87.6°F 87.3°F
Little Cayman 87.5°F 87.4°F
Grand Cayman 87.4°F 86.9°F
George Town 87.4°F 86.9°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 79.7 °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

Current weather
00:16
Little Cayman
+66°F
SW 26 mph
Feels like: +66°F
Precip.: 0%
Places in Cayman Islands:
Name
°F
Grand Cayman
+70°F
George Town
+70°F
Cayman Brac
+66°F
Little Cayman
+66°F
24 Hours Forecast
Little Cayman
Local time: 00:16
February 03, tuesday
0300
66°F
SW
25 mph
0600
68°F
SW
23 mph
0900
68°F
SW
24 mph
1200
70°F
SW
23 mph
1500
72°F
SW
22 mph
1800
73°F
SW
19 mph
2100
75°F
SW
18 mph
February 04, wednesday
0000
75°F
W
22 mph
Units of measurement: °C / °F