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Grand Cayman weather in December

Weather in Grand Cayman: December

Average day temperature: 82.0°F
Average night temperature: 79.1°F
Sea water temperature: 82.4°F
Number of sunny days: 6 days
Day length: 11.0 - 11.1 hours
Number of rainy days: 3 days
Precipitation totals: 1.7 in.

Air temperature in December, °F

Show year:
2023
2022
2021

The highest day temperature during December of 2023 was 86°F. At the same time the lowest night temperature was 74°F. Day and night temperature averages during December were 81.1°F and 79.8°F.

Sea water temperature in Grand Cayman in December, °F

Show year:
2023
2022
2021

The average sea water temperature in December of 2023 was 83.7°F. The highest and lowest sea temperatures during the month were 84.7°F and 82.2°F.

Sunny, partly cloudy and cloudy days

Mostly all days in December are partly cloudy but sunny or cloudy days are also possible.

Precipitation total in December, in.

Precipitation total value in Grand Cayman in December is 1.6 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 16.3 mph It makes December most windy month of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 5.4.

Best time for vacation in Grand Cayman

Sunniest months:
July 11 days
September 10 days
March 10 days
Warmest months:
August 87.1 °F
July 87.1 °F
September 86.9 °F
Warmest sea temp:
September 86.0 °F
August 85.8 °F
October 85.5 °F
Coldest months:
January 80.2 °F
February 80.4 °F
March 80.8 °F
Rainiest months:
October 8 days
November 6 days
August 5 days
Windiest months:
December 16.7 mph
November 16.0 mph
January 15.6 mph

Grand Cayman on a weather map

Grand Cayman
+81°F
NW 4 mph
Feels like: +86°F
Precip.: 0%
Places in Cayman Islands:
Name
°F
+81°F
+81°F
+79°F
+79°F
24 Hours Forecast
Grand Cayman
Local time: 10:00
November 21, thursday
1200
82°F
W
2 mph
1500
82°F
SE
2 mph
1800
81°F
SE
8 mph
2100
81°F
SW
14 mph
November 22, friday
0000
81°F
S
15 mph
0300
79°F
S
21 mph
0600
79°F
S
21 mph
0900
77°F
S
22 mph
Units of measurement: °C / °F