December weather forecastUlster Spring, Jamaica
December
Weather in December
The first month of the winter, December, is still a warm month in Ulster Spring, Jamaica, with an average temperature fluctuating between 19.6°C (67.3°F) and 27.1°C (80.8°F).Temperature
The shift from November to December is characterized by an average high-temperature of a still moderately hot 27.1°C (80.8°F), not significantly different from the 27.9°C (82.2°F) of November. Ulster Spring's average low-temperature in the month of December is recorded at a refreshing 19.6°C (67.3°F).Heat index
The heat index for December is estimated at a hot 30°C (86°F). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.Take note of the fact that heat index values are based on shaded circumstances with light airflows. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. 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. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humidity
The average relative humidity in December in Ulster Spring is 85%.Rainfall
In December, in Ulster Spring, the rain falls for 23.9 days. Throughout December, 65mm (2.56") of precipitation is accumulated. Throughout the year, in Ulster Spring, Jamaica, there are 297.9 rainfall days, and 1472mm (57.95") of precipitation is accumulated.Daylight
With an average of 11h and 6min of daylight, December has the shortest days of the year in Ulster Spring, Jamaica.On the first day of the month, sunrise is at 06:26 and sunset at 17:32. On the last day of December, sunrise is at 06:41 and sunset at 17:45 EST.
Sunshine
In December, the average sunshine in Ulster Spring is 6.3h.UV index
In December, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: In December, the UV index of 6 transforms into the following advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ulster Spring, Jamaica
- Average high temperature in December: 27.1°C
The warmest month (with the highest average high temperature) is August (30°C).
The month with the lowest average high temperature is January (27°C).
- Average low temperature in December: 19.6°C
The month with the highest average low temperature is August (21.9°C).
The coldest month (with the lowest average low temperature) is February (18.6°C).
Average pressure in December
Ulster Spring, 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
Ulster Spring, Jamaica
- Average wind speed in December: 7.3km/h
The windiest month (with the highest average wind speed) is June (9.4km/h).
The calmest month (with the lowest average wind speed) is November (6.2km/h).
Average humidity in December
Ulster Spring, Jamaica
- Average humidity in December: 85%
The month with the highest relative humidity is October (87%).
The months with the lowest relative humidity are March and July (81%).
Average rainfall in December
Ulster Spring, Jamaica
- Average rainfall in December: 65mm
The wettest month (with the highest rainfall) is October (228mm).
The driest month (with the least rainfall) is January (56mm).
Average rainfall days in December
Ulster Spring, Jamaica
- Average rainfall days in December: 23.9 days
The month with the highest number of rainy days is October (28.7 days).
The month with the least rainy days is June (21.1 days).
Average daylight in December /
Average sunshine in December
Ulster Spring, Jamaica
- Average daylight in December: 11h and 6min
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 18min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is November (Average sunshine: 6h and 6min).
Average sunshine days in December
Ulster Spring, Jamaica
- Average sunshine days in December: 3.7 days
The month with the most sunshine days is June (7.6 days).
The months with the least sunshine days are September and November (1.9 days).
Average UV index in December
Ulster Spring, Jamaica
- Average UV index in December: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is October (UV index 5).
Average cloud cover in December
Ulster Spring, Jamaica
- Average cloud cover in December: 45
The months with the most cloud cover are May and November (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in December
Ulster Spring, Jamaica
- Average visibility in December: 6km
The months with the highest visibility are March, June, July and August (8km).
The months with the lowest visibility are November and December (6km).
