World Resorts Cayman Islands Grand Cayman Weather

Grand Cayman Sea Temperature in July

Average sea water temperature in July:
+85.0°F
Minimum sea water temperature in July: 87.3°F
Maximum sea water temperature in July: 82.9°F

Daily sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 85.6°F. The highest and lowest sea temperatures during the month were 86.7°F and 84.0°F.

Monthly sea water temperature in Grand Cayman, °F

Which Cayman Islands resorts have warmest sea in July?

Place name July 2026 July 2025
Cayman Brac 86.2°F 86.1°F
Little Cayman 86.1°F 86.2°F
Grand Cayman 85.6°F 85.5°F
George Town 85.5°F 85.5°F

Best time for vacation in Grand Cayman

Sunniest months:
July 10 days
March 10 days
September 10 days
Warmest months:
August 87.1 °F
September 86.9 °F
July 86.8 °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
21:59
Grand Cayman
+84°F
W 9 mph
Feels like: +93°F
Precip.: 8%
Places in Cayman Islands:
Name
°F
Grand Cayman
+84°F
George Town
+84°F
Cayman Brac
+84°F
Little Cayman
+84°F
24 Hours Forecast
Grand Cayman
Local time: 21:59
August 13, thursday
0000
84°F
SW
13 mph
0300
84°F
SW
14 mph
0600
84°F
SW
15 mph
0900
84°F
W
16 mph
1200
84°F
W
14 mph
1500
86°F
W
14 mph
1800
84°F
W
13 mph
2100
84°F
W
12 mph
Units of measurement: °C / °F