December weather forecast
Runaway Bay, Jamaica

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Weather in December

December in Runaway Bay witnesses the most significant temperature drop from November. Though the volume of rain decreases significantly compared to November, the frequency of rainfall days rises slightly. With the stable sea temperature, December remains an excellent month to enjoy vibrant marine life. Additionally, the average wind speed increases, making it the windiest month of the year. December's temperatures range from a comfortable high of 27.1°C (80.8°F) to a mellow low of 24.2°C (75.6°F).

Temperature

With the onset of December, the average high-temperature registers at a still warm 27.1°C (80.8°F), subtly different from November's 27.9°C (82.2°F). Runaway Bay documents an average low-temperature of 24.2°C (75.6°F) for the nights of December.

Heat index

The heat index in December is calculated to be a hot 30°C (86°F). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.
Know that the heat index computations account for shaded terrains and slight winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

May, June, November and December, with an average relative humidity of 79%, are the most humid months in Runaway Bay.

Rainfall

In December, the rain falls for 18.6 days. Throughout December, 48mm (1.89") of precipitation is accumulated. In Runaway Bay, during the entire year, the rain falls for 219.4 days and collects up to 663mm (26.1") of precipitation.

Snowfall

January through August, October through December are months without snowfall.

Sea temperature

In December, the average sea temperature is 28°C (82.4°F).
Note: Swimming, diving, and similar water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are seen as very agreeable and pleasurable for lengthy periods without discomfort.

Daylight

The month with the shortest days in Runaway Bay is December, with an average of 11h and 0min of daylight.
On the first day of December in Runaway Bay, sunrise is at 06:25 and sunset at 17:31. On the last day of the month, sunrise is at 06:41 and sunset at 17:43 EST.

Sunshine

December has the least sunshine of the year in Runaway Bay, with an average of 6.5h of sunshine.

UV index

April through December, with an average maximum UV index of 7, are months with the highest UV index in Runaway Bay. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: An average maximum UV index of 7 in December leads to these recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Notice! Sand and water reflections contribute to a stronger UV exposure.
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Frequently asked questions

What is the average December temperature in Runaway Bay?

During December, Runaway Bay experiences an average high-temperature of 27.1°C (80.8°F) and a low-temperature of 24.2°C (75.6°F). In December, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 30°C (86°F).

What is the most humid month in Runaway Bay?

May, June, November and December, with an average relative humidity of 79%, are most humid months in Runaway Bay, Jamaica.

What is the average humidity in December in Runaway Bay?

The average relative humidity in December is 79%.

How many days does it rain in December in Runaway Bay?

In Runaway Bay, Jamaica, during December, the rain falls for 18.6 days and regularly aggregates up to 48mm (1.89") of precipitation.

When it does not snow in Runaway Bay?

In Runaway Bay, Jamaica, snow does not fall in January through August, October through December.

How warm is the water in December in Runaway Bay?

In Runaway Bay, in December, the average water temperature is 28°C (82.4°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the month with the shortest days in Runaway Bay?

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

How many hours of daylight does Runaway Bay have in December?

In December, the average day length in Runaway Bay, Jamaica, is 11h and 2min.

When is the sunrise / sunset in December in Runaway Bay?

On the first day of December in Runaway Bay, sunrise is at 06:25 and sunset at 17:31. On the last day of the month, sunrise is at 06:41 and sunset at 17:43 EST.

What is the month with the least sunshine in Runaway Bay?

With an average of 6.5h of sunshine, December has the least sunshine of the year in Runaway Bay.

How long on average sun shines in December in Runaway Bay?

The average sunshine duration in December is 6.5h.

What is the month with the highest UV index in Runaway Bay?

April through December, with an average maximum UV index of 7, are months with the highest UV index in Runaway Bay.

What is the UV index intensity in December in Runaway Bay?

In Runaway Bay, the average daily maximum UV index in December is 7. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in December
Runaway Bay, Jamaica

Average temperature in December - Runaway Bay, Jamaica
  • Average high temperature in December: 27.1°C

The warmest month (with the highest average high temperature) is August (29.7°C).
The months with the lowest average high temperature are February and March (26.6°C).

  • Average low temperature in December: 24.2°C

The month with the highest average low temperature is August (26.3°C).
The coldest month (with the lowest average low temperature) is March (23.1°C).

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Average pressure in December
Runaway Bay, Jamaica

Average pressure in December - Runaway Bay, Jamaica
  • Average pressure in December: 1014.6mbar

The month with the highest atmospheric pressure is January (1015.7mbar).
The month with the lowest atmospheric pressure is October (1011.6mbar).

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Average wind speed in December
Runaway Bay, Jamaica

Average wind speed in December - Runaway Bay, Jamaica
  • Average wind speed in December: 17.1km/h

The windiest month (with the highest average wind speed) is June (17.9km/h).
The calmest month (with the lowest average wind speed) is October (13.2km/h).

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Average humidity in December
Runaway Bay, Jamaica

Average humidity in December - Runaway Bay, Jamaica
  • Average humidity in December: 79%

The months with the highest relative humidity are May, June, November and December (79%).
The month with the lowest relative humidity is March (77%).

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Average rainfall in December
Runaway Bay, Jamaica

Average rainfall in December - Runaway Bay, Jamaica
  • Average rainfall in December: 48mm

The wettest month (with the highest rainfall) is October (95mm).
The driest month (with the least rainfall) is February (27mm).

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Average rainfall days in December
Runaway Bay, Jamaica

Average rainfall days in December - Runaway Bay, Jamaica
  • Average rainfall days in December: 18.6 days

The month with the highest number of rainy days is October (23.9 days).
The month with the least rainy days is February (15 days).

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Average snowfall in December
Runaway Bay, Jamaica

Average snowfall in December - Runaway Bay, Jamaica
  • Average snowfall in December: 0mm

The month with the highest snowfall is September (1mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0mm).

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Average snowfall days in December
Runaway Bay, Jamaica

Average snowfall days in December - Runaway Bay, Jamaica
  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).

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Average sea temperature in December
Runaway Bay, Jamaica

Average sea temperature in December - Runaway Bay, Jamaica
  • Average sea temperature in December: 28°C

The best months for swimming (with the highest average sea temperature) are June, July, August, September, October and November (29°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (27°C).

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Average daylight in December /
Average sunshine in December
Runaway Bay, Jamaica

Average daylight in December / Average sunshine in December - Runaway Bay, 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 3min

The months with the most sunshine are August and September (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in December
Runaway Bay, Jamaica

Average sunshine days in December - Runaway Bay, Jamaica
  • Average sunshine days in December: 5.5 days

The month with the most sunshine days is January (9.6 days).
The month with the least sunshine days is May (3.4 days).

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Average UV index in December
Runaway Bay, Jamaica

Average UV index in December - Runaway Bay, Jamaica
  • Average UV index in December: 7

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

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Average cloud cover in December
Runaway Bay, Jamaica

Average cloud cover in December - Runaway Bay, Jamaica
  • Average cloud cover in December: 33

The months with the most cloud cover are November and December (Cloud cover 33).
The month with the least cloud cover is September (Cloud cover 22).

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Average visibility in December
Runaway Bay, Jamaica

Average visibility in December - Runaway Bay, 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).

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Runaway Bay, Jamaica

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