December weather forecast
Green Island, Jamaica

englishespañol中文
Share

Weather in December

The first month of the winter, December, is also a moderately hot month in Green Island, Jamaica, with an average temperature fluctuating between 27.9°C (82.2°F) and 25.7°C (78.3°F).

Temperature

The arrival of December is marked by an average high-temperature of a still moderately hot 27.9°C (82.2°F), bearing a close resemblance to November. In Green Island, the nightly December temperatures experience a slight descent from daily highs to an average low of 25.7°C (78.3°F).

Heat index

The heat index value for December is estimated at a tropical 31°C (87.8°F). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.

Humidity

In Green Island, the average relative humidity in December is 75%.

Rainfall

In Green Island, in December, during 15.5 rainfall days, 42mm (1.65") of precipitation is typically accumulated. Throughout the year, there are 236.8 rainfall days, and 822mm (32.36") of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 11h and 0min of daylight.
On the first day of December, sunrise is at 06:29 and sunset at 17:35. On the last day of the month, sunrise is at 06:44 and sunset at 17:47 EST.

Sunshine

The month with the least sunshine is December, with an average of 7.1h of sunshine.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Green Island are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index, 7 in December, converts into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
[Resources]

Frequently asked questions

What are the temperatures in Green Island in December?

During December, Green Island experiences an average high-temperature of 27.9°C (82.2°F) and a low-temperature of 25.7°C (78.3°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in December is estimated at 31°C (87.8°F).

What is the average humidity in December in Green Island?

The average relative humidity in December in Green Island, Jamaica, is 75%.

How many days does it rain in December in Green Island?

In Green Island, during December, the rain falls for 15.5 days and regularly aggregates up to 42mm (1.65") of precipitation.

What is the month with the shortest days in Green Island?

With an average of 11h and 0min of daylight, December has the shortest days of the year in Green Island, Jamaica.

What is the average length of the day in December in Green Island?

In December, the average day length is 11h and 3min.

When are sunrise and sunset in December in Green Island?

In December, on the first day of the month, sunrise is at 06:29 and sunset at 17:35. On the last day of the month, in Green Island, Jamaica, sunrise is at 06:44 and sunset at 17:47 EST.

What is the month with the least sunshine in Green Island?

December has the least sunshine of the year in Green Island, Jamaica, with an average of 7.1h of sunshine.

How long on average sun shines in December in Green Island?

In December, the average sunshine duration in Green Island, Jamaica, is 7.1h.

What are the months with the highest UV index in Green Island?

The months with the highest UV index in Green Island are January through December, with an average maximum UV index of 7.

What are the months with the lowest UV index in Green Island?

January through December, with an average maximum UV index of 7, are months with the lowest UV index.

How high is the UV index in December in Green Island?

The average daily maximum UV index in December is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.

Average temperature in December
Green Island, Jamaica

Average temperature in December - Green Island, Jamaica
  • Average high temperature in December: 27.9°C

The warmest month (with the highest average high temperature) is August (30°C).
The month with the lowest average high temperature is February (27.1°C).

  • Average low temperature in December: 25.7°C

The month with the highest average low temperature is September (27.9°C).
The coldest months (with the lowest average low temperature) are February and March (24.8°C).

[Resources]

Average pressure in December
Green Island, Jamaica

Average pressure in December - Green Island, Jamaica
  • Average pressure in December: 1014.2mbar

The month with the highest atmospheric pressure is January (1015.4mbar).
The month with the lowest atmospheric pressure is October (1011.3mbar).

[Resources]

Average wind speed in December
Green Island, Jamaica

Average wind speed in December - Green Island, Jamaica
  • Average wind speed in December: 18.5km/h

The windiest month (with the highest average wind speed) is December (18.5km/h).
The calmest month (with the lowest average wind speed) is September (11.7km/h).

[Resources]

Average humidity in December
Green Island, Jamaica

Average humidity in December - Green Island, Jamaica
  • Average humidity in December: 75%

The month with the highest relative humidity is June (77%).
The month with the lowest relative humidity is March (73%).

[Resources]

Average rainfall in December
Green Island, Jamaica

Average rainfall in December - Green Island, Jamaica
  • Average rainfall in December: 42mm

The wettest month (with the highest rainfall) is October (112mm).
The driest months (with the least rainfall) are February and March (29mm).

[Resources]

Average rainfall days in December
Green Island, Jamaica

Average rainfall days in December - Green Island, Jamaica
  • Average rainfall days in December: 15.5 days

The month with the highest number of rainy days is May (24.3 days).
The month with the least rainy days is February (14.2 days).

[Resources]

Average daylight in December /
Average sunshine in December
Green Island, Jamaica

Average daylight in December / Average sunshine in December - Green Island, Jamaica
  • Average daylight in December: 11h and 0min

The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 0min).

  • Average sunshine in December: 7h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).

[Resources]

Average sunshine days in December
Green Island, Jamaica

Average sunshine days in December - Green Island, Jamaica
  • Average sunshine days in December: 10.4 days

The month with the most sunshine days is January (11.6 days).
The month with the least sunshine days is May (3.2 days).

[Resources]

Average UV index in December
Green Island, Jamaica

Average UV index in December - Green Island, Jamaica
  • Average UV index in December: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

[Resources]

Average cloud cover in December
Green Island, Jamaica

Average cloud cover in December - Green Island, Jamaica
  • Average cloud cover in December: 19

The month with the most cloud cover is May (Cloud cover 26).
The month with the least cloud cover is December (Cloud cover 19).

[Resources]

Average visibility in December
Green Island, Jamaica

Average visibility in December - Green Island, Jamaica
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

[Resources]

Green Island, Jamaica

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location