World Resorts Cayman Islands Grand Cayman Weather

Grand Cayman Sea Temperature in March

Average sea water temperature in March:
+80.8°F
Minimum sea water temperature in March: 82.4°F
Maximum sea water temperature in March: 78.8°F

Daily sea water temperature in March, °F

Show year:
2026
2025
2024

The average sea water temperature in March of 2026 was 80.7°F. The highest and lowest sea temperatures during the month were 81.5°F and 79.9°F.

Monthly sea water temperature in Grand Cayman, °F

Which Cayman Islands resorts have warmest sea in March?

Place name March 2026 March 2025
Little Cayman 80.8°F 81.4°F
Cayman Brac 80.7°F 81.5°F
George Town 80.7°F 81.7°F
Grand Cayman 80.7°F 81.7°F

Best time for vacation in Grand Cayman

Sunniest months:
March 11 days
July 11 days
May 10 days
Warmest months:
August 87.1 °F
July 87.0 °F
September 86.9 °F
Warmest sea temp:
September 86.1 °F
August 85.9 °F
October 85.5 °F
Coldest months:
January 80.1 °F
February 80.3 °F
March 80.9 °F
Rainiest months:
October 8 days
May 5 days
November 5 days
Windiest months:
December 16.8 mph
November 16.1 mph
January 15.7 mph

Grand Cayman on a weather map

Current weather
15:06
Grand Cayman
+81°F
S 22 mph
Feels like: +88°F
Precip.: 0%
Places in Cayman Islands:
Name
°F
Grand Cayman
+81°F
George Town
+81°F
Cayman Brac
+79°F
Little Cayman
+79°F
24 Hours Forecast
Grand Cayman
Local time: 15:06
March 20, friday
1800
81°F
S
21 mph
2100
79°F
S
19 mph
March 21, saturday
0000
77°F
S
21 mph
0300
77°F
SW
21 mph
0600
75°F
SW
24 mph
0900
75°F
SW
22 mph
1200
77°F
SW
19 mph
1500
75°F
SW
19 mph
Units of measurement: °C / °F