World Resorts Cayman Islands Grand Cayman Weather

Grand Cayman 7 Days Forecast

17.07
fri
Day
84°F
W 13 mph
Precip.
25%
Night
82°F
W 11 mph
Precip.
9%
18.07
sat
Day
82°F
W 11 mph
Precip.
11%
Night
82°F
NW 6 mph
Precip.
8%
19.07
sun
Day
82°F
W 7 mph
Precip.
10%
Night
82°F
S 4 mph
Precip.
6%
20.07
mon
Day
82°F
S 8 mph
Precip.
7%
Night
82°F
NW 5 mph
Precip.
8%
21.07
tue
Day
82°F
W 11 mph
Precip.
7%
Night
82°F
SW 8 mph
Precip.
7%
22.07
wed
Day
82°F
SW 8 mph
Precip.
43%
Night
82°F
W 4 mph
Precip.
13%
23.07
thu
Day
84°F
W 11 mph
Precip.
9%
Night
82°F
N 6 mph
Precip.
9%

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 86.0°F and 84.7°F.

Air temperature in Grand Cayman, °F

Precipitation total in Grand Cayman, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Grand Cayman

Sunniest months:
July 11 days
March 10 days
September 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
01:17
Grand Cayman
+82°F
W 13 mph
Feels like: +91°F
Precip.: 13%
Places in Cayman Islands:
Name
°F
Grand Cayman
+82°F
George Town
+82°F
Cayman Brac
+82°F
Little Cayman
+82°F
24 Hours Forecast
Grand Cayman
Local time: 01:17
July 17, friday
0300
82°F
W
13 mph
0600
82°F
SW
13 mph
0900
82°F
SW
16 mph
1200
84°F
W
13 mph
1500
84°F
SW
11 mph
1800
84°F
W
10 mph
2100
82°F
W
8 mph
July 18, saturday
0000
82°F
W
11 mph
Units of measurement: °C / °F