December weather forecast and climate
George Town, Cayman Islands

The scenic waterfront in George Town, Cayman Islands, viewed from the water on a warm sunny day
The scenic waterfront in George Town, Cayman Islands, viewed from the water on a warm sunny day

What is the temperature in December in George Town?

The average high-temperature, in December, is 27°C (80.6°F), while the average low-temperature is 23°C (73.4°F).

How much does it rain in George Town in December?

In George Town, in December, during 6 rainfall days, typically, 99mm (3.9") of precipitation is accumulated.

How warm is the water in December in George Town?

In December, in George Town, the average sea temperature is 27.9°C (82.2°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.
Average temperature in December - George Town, Cayman Islands
  • Average high temperature in December: 27°C

Warmest months (with the highest average high temperature) are June, July, August and September (30°C).
Months with the lowest average high temperature are January and February (26°C).

  • Average low temperature in December: 23°C

Months with the highest average low temperature are June, July and August (27°C).
The coldest month (with the lowest average low temperature) is February (22°C).

Average rainfall in December - George Town, Cayman Islands
  • Average rainfall in December: 99mm

The wettest month (with the highest rainfall) is October (226mm).
Driest months (with the lowest rainfall) are February and April (13mm).

Average rainfall days in December - George Town, Cayman Islands
  • Average rainfall days in December: 6 days

The month with the highest number of rainy days is October (10 days).
Months with the lowest number of rainy days are February, March and April (4 days).

Average sea temperature in December - George Town, Cayman Islands
  • Average sea temperature in December: 27.9°C

Best months for swimming (with the highest average sea temperature) are August and September (29.9°C).
The coldest month (with the lowest average sea temperature) is February (26.5°C).

Average daylight in December / Average sunshine in December - George Town, Cayman Islands
  • Average daylight in December: 11h

The month with the longest days is June (Average daylight: 13.3h).
The month with shortest days is December (Average daylight: 11h).

  • Average sunshine in December: 7h

The month with most sunshine is April (Average sunshine: 10h).
Months with least sunshine are November and December (Average sunshine: 7).

Average UV index in December - George Town, Cayman Islands
  • Average UV index in December: 7

Months with the highest UV index are March, April, May, June, July and August (UV index 12).
The month with the lowest UV index is December (UV index 7).

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