December weather forecast
Mona Heights, Jamaica

December

Weather in December

December, the first month of the winter in Mona Heights, is still a warm month, with an average temperature varying between 27.8°C (82°F) and 22.4°C (72.3°F).

Temperature

The initiation of December sees an average high-temperature of a still moderately hot 27.8°C (82°F), showing minor variations from the previous month. Mona Heights in December anticipates an average nighttime temperature of 22.4°C (72.3°F).

Heat index

For December, the heat index is appraised at a hot 32°C (89.6°F). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.

Humidity

In December, the average relative humidity in Mona Heights, Jamaica, is 81%.

Rainfall

In Mona Heights, in December, it is raining for 25.7 days, with typically 76mm (2.99") of accumulated precipitation. In Mona Heights, during the entire year, the rain falls for 310.9 days and collects up to 1286mm (50.63") of precipitation.

Daylight

With an average of 11h and 6min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 06:22 and sunset at 17:30. On the last day of the month, sunrise is at 06:38 and sunset at 17:42 EST.

Sunshine

The month with the least sunshine is December, with an average of 6.5h of sunshine.

UV index

January through May, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, a daily UV index of 6 turns into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Frequently asked questions

What is the usual temperature for Mona Heights in December?
During December, Mona Heights experiences an average high-temperature of 27.8°C (82°F) and a low-temperature of 22.4°C (72.3°F). In December, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 32°C (89.6°F).
What is the average humidity in December in Mona Heights?
In December, the average relative humidity in Mona Heights is 81%.
How much does it rain in Mona Heights in December?
In December, in Mona Heights, Jamaica, the rain falls for 25.7 days. Throughout December, 76mm (2.99") of precipitation is accumulated.
What is the month with the shortest days in Mona Heights?
The month with the shortest days in Mona Heights is December, with an average of 11h and 6min of daylight.
What is the average length of the day in December in Mona Heights?
The average day length in December in Mona Heights, Jamaica, is 11h and 4min.
When are sunrise and sunset in December in Mona Heights?
In December, on the first day of the month, sunrise is at 06:22 and sunset at 17:30. On the last day of the month, in Mona Heights, Jamaica, sunrise is at 06:38 and sunset at 17:42 EST.
What is the month with the least sunshine in Mona Heights?
December has the least sunshine of the year, with an average of 6.5h of sunshine.
How long on average sun shines in December in Mona Heights?
In December, the average sunshine duration in Mona Heights, Jamaica, is 6.5h.
When is the lowest UV index in Mona Heights?
January through May, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Mona Heights.
How high is the UV index in December in Mona Heights?
In December, the average daily maximum UV index in Mona Heights, Jamaica, is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Mona Heights, Jamaica
  • Average high temperature in December: 27.8°C

The warmest month (with the highest average high temperature) is August (30.3°C).
The months with the lowest average high temperature are January and February (27.3°C).

  • Average low temperature in December: 22.4°C

The month with the highest average low temperature is July (24.3°C).
The coldest month (with the lowest average low temperature) is February (21.6°C).

Average pressure in December
Mona Heights, Jamaica
  • Average pressure in December: 1014.4mbar

The month with the highest atmospheric pressure is January (1015.5mbar).
The month with the lowest atmospheric pressure is October (1011.5mbar).

Average wind speed in December
Mona Heights, Jamaica
  • Average wind speed in December: 10km/h

The windiest month (with the highest average wind speed) is June (12.8km/h).
The calmest month (with the lowest average wind speed) is November (8.6km/h).

Average humidity in December
Mona Heights, Jamaica
  • Average humidity in December: 81%

The month with the highest relative humidity is October (82%).
The month with the lowest relative humidity is March (78%).

Average rainfall in December
Mona Heights, Jamaica
  • Average rainfall in December: 76mm

The wettest month (with the highest rainfall) is October (184mm).
The driest month (with the least rainfall) is February (44mm).

Average rainfall days in December
Mona Heights, Jamaica
  • Average rainfall days in December: 25.7 days

The month with the highest number of rainy days is October (28.7 days).
The month with the least rainy days is February (22.1 days).

Average daylight in December /
Average sunshine in December
Mona Heights, Jamaica
  • Average daylight in December: 11h and 1min

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 6min).

  • Average sunshine in December: 6h and 3min

The months with the most sunshine are August and September (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

Average sunshine days in December
Mona Heights, Jamaica
  • Average sunshine days in December: 1.8 days

The month with the most sunshine days is January (3.4 days).
The month with the least sunshine days is August (0.3 days).

Average UV index in December
Mona Heights, Jamaica
  • Average UV index in December: 6

The months with the highest UV index are June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, November and December (UV index 6).

Average cloud cover in December
Mona Heights, Jamaica
  • Average cloud cover in December: 34

The month with the most cloud cover is June (Cloud cover 41).
The month with the least cloud cover is September (Cloud cover 29).

Average visibility in December
Mona Heights, Jamaica
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, June, July, November and December (10km).
The months with the lowest visibility are May, August, September and October (9km).

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