December weather forecastMandeville, Jamaica
December
Weather in December
December in Mandeville brings forth cooler temperatures, making it one of the chilliest months of the year. While the barometer drops, the town maintains its pleasantly warm temperatures. Compared to November, the number of sunshine hours increases marginally to 6.3, allowing residents to enjoy outdoor activities during the day. As January approaches, Mandeville gears up to welcome the new year with predictable pleasant weather.Temperature
A minimal variation is noted in Mandeville's average high-temperature at the onset of December, reaching a still moderately hot 27.1°C (80.8°F) from November's 27.9°C (82.2°F). Mandeville observes an average low-temperature of 19.6°C (67.3°F) during December nights.Heat index
The heat index value during December is calculated to be a hot 30°C (86°F). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Humidity
The average relative humidity in December in Mandeville is 85%.Rainfall
In Mandeville, in December, it is raining for 23.9 days, with typically 65mm (2.56") of accumulated precipitation. Throughout the year, there are 297.9 rainfall days, and 1472mm (57.95") of precipitation is accumulated.Daylight
The month with the shortest days is December, with an average of 11h and 6min of daylight.On the first day of the month, sunrise is at 06:25 and sunset at 17:33. On the last day of December, sunrise is at 06:41 and sunset at 17:45 EST.
Sunshine
In Mandeville, Jamaica, the average sunshine in December is 6.3h.UV index
In Mandeville, the average daily maximum UV index in December is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 6 during December translates into the following guidance:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mandeville, 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
Mandeville, 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
Mandeville, 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
Mandeville, 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
Mandeville, 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
Mandeville, 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
Mandeville, 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
Mandeville, 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
Mandeville, 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
Mandeville, 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
Mandeville, 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).
