Measurements:
°C
°F
Grand Cayman
82°F
SW 24 mph
Feels like: 88°F
Precip: 0%
World Resorts Cayman Islands Grand Cayman Weather December Weather in Grand Cayman

Grand Cayman Weather: December

Average Day Temperature: 85.4°F
Average Night Temperature: 82.3°F
Sea Water Temperature: 86.0°F
Number of Sunny Days: 7 days
Sunshine Hours: 11.0 - 11.1 hours
Number of Rainy Days: 3 days
Precipitation Totals: 1.6 in

Air Temperature in December, °F

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
15
30
45
60
75
90
105
120
Day Temperature   
Night Temperature

The highest day temperature in December 2024 was 89°F. The lowest night temperature was 80°F. The average values for day and night temperatures during December were 84.3°F и 82.3°F respectivly.

Grand Cayman Water Sea Temperature in December, °F

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
81
83
85
87
89
91
93

The average sea surface temperature in December 2024 for Grand Cayman was 86.3°F. The maximum and minimum values were 85.4°F and 87.2°F respectively.

Sunny, Cloudy and Gloomy days
Sunny days
Cloudy days
Gloomy days
22%
44%
34%

Most of the days in December are cloudy but you can also expect sunny or gloomy days.

Precipitation Totals in December, in

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0
4
8
12
16
20
24
28
32
36

Precipitation total in December for Grand Cayman is 1.6 in. It makes december one of the least rainy months of the year.

Wind Speed in December, mph
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
2.9
5.8
8.7
11.6
14.5
17.3
20.2

The average wind speed in December is 16.9 mph. It makes December the most windy month of the year for Grand Cayman.

Average Sunny Hours Per Day
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.4
2.8
4.2
5.6
6.9
8.3
9.7

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Grand Cayman in December is 5.5 hours.

Best Time to Visit Grand Cayman
The most sunny months:
July 11 days
March 11 days
May 10 days
The most warm months:
August 91.3 °F
July 91.2 °F
September 91.0 °F
Warmest sea temperature:
September 90.0 °F
August 89.8 °F
October 89.4 °F
The most cold months:
January 83.5 °F
February 83.8 °F
March 84.3 °F
The most rainy months:
October 8 days
May 5 days
November 5 days
The most windy months:
December 17 mph
November 16 mph
January 16 mph

Grand Cayman on the Weather Map

Cayman Islands Resorts:
NAME
Cayman Brac +84
George Town +82
Grand Cayman +82
Little Cayman +84
24 Hours Weather Forecast
Grand Cayman
Local time: 14:19
18 apr, friday
1500 82°F
SW
24 mph
1800 84°F
W
21 mph
2100 84°F
W
17 mph
19 apr, saturday
0000 84°F
W
19 mph
0300 82°F
W
28 mph
0600 82°F
W
25 mph
0900 82°F
W
23 mph
1200 84°F
W
25 mph