World Resorts Cayman Islands Grand Cayman Weather

Grand Cayman 14 Days Forecast

29.12
mon
Day
79°F
W 14 mph
Precip.
0%
Night
77°F
SW 13 mph
Precip.
0%
30.12
tue
Day
77°F
SW 12 mph
Precip.
100%
Night
75°F
SW 13 mph
Precip.
0%
31.12
wed
Day
77°F
SW 16 mph
Precip.
0%
Night
75°F
S 14 mph
Precip.
0%
01.01
thu
Day
75°F
S 13 mph
Precip.
0%
Night
75°F
SW 11 mph
Precip.
100%
02.01
fri
Day
77°F
SW 14 mph
Precip.
66%
Night
77°F
SW 12 mph
Precip.
0%
03.01
sat
Day
77°F
S 6 mph
Precip.
0%
Night
77°F
SW 11 mph
Precip.
0%
04.01
sun
Day
77°F
SW 11 mph
Precip.
0%
Night
77°F
SW 12 mph
Precip.
0%
05.01
mon
Day
79°F
W 12 mph
Precip.
44%
Night
79°F
SW 11 mph
Precip.
0%
06.01
tue
Day
79°F
W 11 mph
Precip.
75%
Night
79°F
W 11 mph
Precip.
100%
07.01
wed
Day
81°F
W 11 mph
Precip.
0%
Night
79°F
W 9 mph
Precip.
0%
08.01
thu
Day
81°F
W 14 mph
Precip.
58%
Night
81°F
W 16 mph
Precip.
0%
09.01
fri
Day
81°F
W 17 mph
Precip.
64%
Night
81°F
W 13 mph
Precip.
0%
10.01
sat
Day
81°F
W 11 mph
Precip.
0%
Night
81°F
W 7 mph
Precip.
0%

Sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 83.2°F. The highest and lowest sea temperatures during the month were 83.7°F and 82.2°F.

Sea water temperature in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 81.5°F. The highest and lowest sea temperatures during the month were 82.8°F and 80.8°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:
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 16.7 mph
November 16.1 mph
January 15.7 mph

Grand Cayman on a weather map

Current weather
01:47
Grand Cayman
+79°F
W 17 mph
Feels like: +82°F
Precip.: 0%
Places in Cayman Islands:
Name
°F
Grand Cayman
+79°F
George Town
+79°F
Cayman Brac
+77°F
Little Cayman
+77°F
24 Hours Forecast
Grand Cayman
Local time: 01:47
December 29, monday
0300
79°F
W
17 mph
0600
79°F
W
19 mph
0900
79°F
W
17 mph
1200
79°F
W
14 mph
1500
81°F
SW
12 mph
1800
81°F
SW
13 mph
2100
77°F
SW
13 mph
December 30, tuesday
0000
77°F
SW
13 mph
Units of measurement: °C / °F