Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Transitioning from November to December, Richmond observes an average high-temperature of a still warm 28.9°C (84°F), differing subtly from the previous month. December generally records an average low-temperature of 21.5°C (70.7°F).Heat index
December's heat index is computed to be a very hot 35°C (95°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Keep in mind the heat index values are meant for areas in shade and with light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
October through December, with an average relative humidity of 81%, are the most humid months.Rainfall
In Richmond, Jamaica, in December, during 19.9 rainfall days, 42mm (1.65") of precipitation is typically accumulated. In Richmond, during the entire year, the rain falls for 265.1 days and collects up to 806mm (31.73") of precipitation.Daylight
The month with the shortest days is December, with an average of 11h and 6min of daylight.On the first day of December in Richmond, Jamaica, sunrise is at 06:23 and sunset at 17:30. On the last day of the month, sunrise is at 06:39 and sunset at 17:42 EST.
Sunshine
The month with the least sunshine in Richmond is December, with an average of 6.7h of sunshine.UV index
January through April, September, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 6 suggests these recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Richmond in December?
What is the most humid month in Richmond?
What is the average humidity in December in Richmond?
How many days does it rain in December in Richmond?
What is the month with the shortest days in Richmond?
What is the average length of the day in December in Richmond?
When are sunrise and sunset in December in Richmond?
What is the month with the least sunshine in Richmond?
How long on average sun shines in December in Richmond?
What is the month with the lowest UV index in Richmond?
How high is the UV index in December in Richmond?
Average temperature in December
Richmond, Jamaica
- Average high temperature in December: 28.9°C
The warmest months (with the highest average high temperature) are July and August (31.7°C).
The month with the lowest average high temperature is January (28.4°C).
- Average low temperature in December: 21.5°C
The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is January (20.5°C).
Average pressure in December
Richmond, 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
Richmond, Jamaica
- Average wind speed in December: 7.3km/h
The windiest month (with the highest average wind speed) is June (9km/h).
The calmest month (with the lowest average wind speed) is November (6.6km/h).
Average humidity in December
Richmond, Jamaica
- Average humidity in December: 81%
The months with the highest relative humidity are October, November and December (81%).
The months with the lowest relative humidity are March, July and August (77%).
Average rainfall in December
Richmond, Jamaica
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is October (123mm).
The driest month (with the least rainfall) is January (26mm).
Average rainfall days in December
Richmond, Jamaica
- Average rainfall days in December: 19.9 days
The month with the highest number of rainy days is October (26.5 days).
The month with the least rainy days is February (19.2 days).
Average daylight in December /
Average sunshine in December
Richmond, 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 4min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
Richmond, Jamaica
- Average sunshine days in December: 4.6 days
The month with the most sunshine days is January (6 days).
The month with the least sunshine days is October (1.5 days).
Average UV index in December
Richmond, Jamaica
- Average UV index in December: 6
The months with the highest UV index are May, June, July, August and October (UV index 7).
The months with the lowest UV index are January, February, March, April, September, November and December (UV index 6).
Average cloud cover in December
Richmond, Jamaica
- Average cloud cover in December: 32
The month with the most cloud cover is June (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in December
Richmond, Jamaica
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Richmond, Jamaica
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