December weather forecastReading, Jamaica

December

Weather in December

December, the first month of the winter in Reading, is still a warm month, with an average temperature varying between 24.9°C (76.8°F) and 27.5°C (81.5°F).

Temperature

Transitioning from November to December, Reading observes an average high-temperature of a still moderately hot 27.5°C (81.5°F), differing subtly from the previous month. An average low-temperature of 24.9°C (76.8°F), slightly less than the daytime peak, marks the month of December.

Heat index

The average heat index in December is calculated to be a tropical 31°C (87.8°F). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.
Heat index values are typically calculated for conditions of shade and a light breeze. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

The average relative humidity in December in Reading is 77%.

Rainfall

In December, in Reading, the rain falls for 11 days. Throughout December, 28mm (1.1") of precipitation is accumulated. In Reading, during the entire year, the rain falls for 177.2 days and collects up to 687mm (27.05") of precipitation.

Daylight

December has the shortest days of the year, with an average of 11h and 0min of daylight.
On the first day of December in Reading, Jamaica, sunrise is at 06:28 and sunset at 17:34. On the last day of the month, sunrise is at 06:43 and sunset at 17:46 EST.

Sunshine

The months with the least sunshine in Reading are November and December, with an average of 6.6h of sunshine.

UV index

The months with the highest UV index are January, March through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 7 in December transforms into this advice:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in December, in Reading, is 27.5°C (81.5°F), while the low-temperature averages to 24.9°C (76.8°F). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in December is calculated to be 31°C (87.8°F).

In December, the average relative humidity is 77%.

In Reading, Jamaica, during December, the rain falls for 11 days and regularly aggregates up to 28mm (1.1") of precipitation.

The month with the shortest days in Reading, Jamaica, is December, with an average of 11h and 0min of daylight.

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

In December, on the first day of the month, sunrise is at 06:28 and sunset at 17:34. On the last day of the month, in Reading, Jamaica, sunrise is at 06:43 and sunset at 17:46 EST.

The months with the least sunshine in Reading, Jamaica, are November and December, with an average of 6.6h of sunshine.

In December, the average sunshine duration in Reading, Jamaica, is 6.6h.

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

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

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

28°C

27.5°C

26.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

19.4km/h

21.1km/h

20km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

15.3

16.7

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Reading, Jamaica

Average high temperature in December: 27.5°C

The warmest month (with the highest average high temperature) is August (29.7°C).
The month with the lowest average high temperature is January (26.8°C).

Average low temperature in December: 24.9°C

The months with the highest average low temperature are July and August (26.8°C).
The coldest month (with the lowest average low temperature) is February (23.8°C).

Average pressure in December
Reading, Jamaica

Average pressure in December: 1014.5mbar

The month with the highest atmospheric pressure is January (1015.6mbar).
The month with the lowest atmospheric pressure is October (1011.4mbar).

Average wind speed in December
Reading, Jamaica

Average wind speed in December: 20km/h

The windiest month (with the highest average wind speed) is December (20km/h).
The calmest month (with the lowest average wind speed) is September (13km/h).

Average humidity in December
Reading, Jamaica

Average humidity in December: 77%

The month with the highest relative humidity is June (78%).
The month with the lowest relative humidity is March (75%).

Average rainfall in December
Reading, Jamaica

Average rainfall in December: 28mm

The wettest month (with the highest rainfall) is May (90mm).
The driest month (with the least rainfall) is February (19mm).

Average rainfall days in December
Reading, Jamaica

Average rainfall days in December: 11 days

The month with the highest number of rainy days is September (18.4 days).
The month with the least rainy days is February (10.6 days).

Average daylight in December /
Average sunshine in December
Reading, 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: 6h and 36min

The months with the most sunshine are July and August (Average sunshine: 11h and 30min).
The months with the least sunshine are November and December (Average sunshine: 6h and 36min).

Average sunshine days in December
Reading, Jamaica

Average sunshine days in December: 18 days

The month with the most sunshine days is December (18 days).
The month with the least sunshine days is September (9.8 days).

Average UV index in December
Reading, Jamaica

Average UV index in December: 7

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

Average cloud cover in December
Reading, Jamaica

Average cloud cover in December: 27

The months with the most cloud cover are January, May and November (Cloud cover 28).
The month with the least cloud cover is July (Cloud cover 21).

Average visibility in December
Reading, 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).