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
December
Weather in December
Temperature
With the transition into December, Duncans notes an average high-temperature of a still warm 27.5°C (81.5°F), closely resembling November. Duncans's temperature during December nights registers a minor decrease to an average low of 24.9°C (76.8°F).Heat index
The heat index in December is calculated to be a hot 31°C (87.8°F). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Humidity
In December, the average relative humidity is 77%.Rainfall
In Duncans, in December, it is raining for 11 days, with typically 28mm (1.1") of accumulated precipitation. In Duncans, 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 in Duncans, with an average of 11h and 0min of daylight.On the first day of December in Duncans, sunrise is at 06:26 and sunset at 17:32. On the last day of the month, sunrise is at 06:42 and sunset at 17:44 EST.
Sunshine
The months with the least sunshine 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 estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: In December, the maximum UV index of 7 suggests these recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Duncans?
What is the average humidity in December in Duncans?
How much does it rain in Duncans in December?
What is the month with the shortest days in Duncans?
How many hours of daylight does Duncans have in December?
When are sunrise and sunset in December in Duncans?
What is the month with the least sunshine in Duncans?
How long on average sun shines in December in Duncans?
What are the months with the highest UV index in Duncans?
How high is the UV index in December in Duncans?
Average temperature in December
Duncans, 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
Duncans, 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
Duncans, 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
Duncans, 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
Duncans, 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
Duncans, 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
Duncans, 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 4min
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
Duncans, 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
Duncans, 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
Duncans, 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
Duncans, 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).
