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:
2025
2024
2023

The average sea water temperature in July of 2025 was 85.5°F. The highest and lowest sea temperatures during the month were 86.4°F and 84.4°F.

Monthly sea water temperature in Grand Cayman, °F

Which Cayman Islands resorts have warmest sea in July?

Place name July 2025 July 2024
Little Cayman 86.2°F 85.3°F
Cayman Brac 86.1°F 85.3°F
Grand Cayman 85.5°F 85.5°F
George Town 85.5°F 85.5°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 80.5 °F
March 80.9 °F
Rainiest months:
October 8 days
May 5 days
November 5 days
Windiest months:
December 16.9 mph
November 16.1 mph
January 15.7 mph

Grand Cayman on a weather map

Current weather
03:54
Grand Cayman
+79°F
SW 16 mph
Feels like: +88°F
Precip.: 0%
Places in Cayman Islands:
Name
°F
Grand Cayman
+79°F
George Town
+79°F
Cayman Brac
+81°F
Little Cayman
+81°F
24 Hours Forecast
Grand Cayman
Local time: 03:54
December 21, sunday
0600
81°F
W
19 mph
0900
81°F
W
19 mph
1200
81°F
SW
18 mph
1500
81°F
SW
20 mph
1800
81°F
SW
20 mph
2100
81°F
SW
20 mph
December 22, monday
0000
81°F
SW
21 mph
0300
81°F
SW
22 mph
Units of measurement: °C / °F