December weather forecast
Yabucoa, PR

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Weather in December

The wrap-up month, December displays the earliest signs of Yabucoa's mild winter. The fall in temperature continues, promoting a comparatively cooler climate. Contrarily, the regular wind speed increases to 8.8mph (14.2km/h), adding to the freshness of the season. The city gently transitions into its least rainy fixture at 1.46" (37mm), fostering an ideal, dry winter. Thus, Yabucoa sees the year out with a calm and refreshing climatic portrayal.

Temperature

The arrival of December coincides with an average high-temperature of a still moderately hot 80.6°F (27°C), indicating a minimal shift from November's 82.4°F (28°C). Nights in December cool down in Yabucoa, Puerto Rico, indicating a minor disparity from daytime highs with an average low-temperature of 74.7°F (23.7°C).

Heat index

December's heat index is calculated to be a tropical 86°F (30°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.
Heat index readings emphasize conditions of light breezes and shaded spots. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

The average relative humidity in December in Yabucoa, Puerto Rico, is 79%.

Rainfall

In Yabucoa, in December, during 14.9 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. In Yabucoa, during the entire year, the rain falls for 223.2 days and collects up to 27.87" (708mm) of precipitation.

Daylight

December has the shortest days of the year, with an average of 11h and 6min of daylight.
On the first day of the month, sunrise is at 6:39 am and sunset at 5:46 pm. On the last day of December, sunrise is at 6:54 am and sunset at 5:58 pm AST.

Sunshine

The month with the least sunshine in Yabucoa, Puerto Rico, is December, with an average of 6.4h of sunshine.

UV index

January through April and December, with an average maximum UV index of 6, are months with the lowest UV index in Yabucoa. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index, 6 during December, leads to the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Yabucoa in December?

During December, Yabucoa experiences an average high-temperature of 80.6°F (27°C) and a low-temperature of 74.7°F (23.7°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in December is calculated to be 86°F (30°C).

What is the average humidity in December in Yabucoa?

In December, the average relative humidity in Yabucoa, Puerto Rico, is 79%.

How much does it rain in Yabucoa in December?

In Yabucoa, during December, the rain falls for 14.9 days and regularly aggregates up to 1.46" (37mm) of precipitation.

What is the month with the shortest days in Yabucoa?

The month with the shortest days in Yabucoa, Puerto Rico, is December, with an average of 11h and 6min of daylight.

What is the average length of the day in December in Yabucoa?

In December, the average day length in Yabucoa is 11h and 4min.

What time are sunrise and sunset in December in Yabucoa?

In December, on the first day of the month, sunrise is at 6:39 am and sunset at 5:46 pm. On the last day of the month, in Yabucoa, Puerto Rico, sunrise is at 6:54 am and sunset at 5:58 pm AST.

What is the month with the least sunshine in Yabucoa?

The month with the least sunshine is December, with an average of 6.4h of sunshine.

How many hours of sunshine does Yabucoa have in December?

In Yabucoa, Puerto Rico, the average sunshine duration in December is 6.4h.

What is the month with the lowest UV index in Yabucoa?

January through April and December, with an average maximum UV index of 6, are months with the lowest UV index.

What is the UV index reading in December in Yabucoa?

The average daily maximum UV index in December in Yabucoa is 6. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Yabucoa, PR

Average temperature in December - Yabucoa, PR
  • Average high temperature in December: 80.6°F

The warmest month (with the highest average high temperature) is August (84.7°F).
The months with the lowest average high temperature are January and February (79.9°F).

  • Average low temperature in December: 74.7°F

The month with the highest average low temperature is August (78.3°F).
The coldest month (with the lowest average low temperature) is March (73°F).

Average pressure in December
Yabucoa, PR

Average pressure in December - Yabucoa, PR
  • Average pressure in December: 29.98"Hg

The months with the highest atmospheric pressure are January, February, June and July (30.01"Hg).
The month with the lowest atmospheric pressure is October (29.9"Hg).

Average wind speed in December
Yabucoa, PR

Average wind speed in December - Yabucoa, PR
  • Average wind speed in December: 8.8mph

The windiest month (with the highest average wind speed) is July (9.7mph).
The calmest month (with the lowest average wind speed) is October (6.8mph).

Average humidity in December
Yabucoa, PR

Average humidity in December - Yabucoa, PR
  • Average humidity in December: 79%

The month with the highest relative humidity is November (81%).
The months with the lowest relative humidity are February and March (77%).

Average rainfall in December
Yabucoa, PR

Average rainfall in December - Yabucoa, PR
  • Average rainfall in December: 1.46"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (0.98").

Average rainfall days in December
Yabucoa, PR

Average rainfall days in December - Yabucoa, PR
  • Average rainfall days in December: 14.9 days

The month with the highest number of rainy days is May (24.2 days).
The month with the least rainy days is January (12.8 days).

Average daylight in December /
Average sunshine in December
Yabucoa, PR

Average daylight in December / Average sunshine in December - Yabucoa, PR
  • 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 2min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

Average sunshine days in December
Yabucoa, PR

Average sunshine days in December - Yabucoa, PR
  • Average sunshine days in December: 13.4 days

The month with the most sunshine days is January (15.5 days).
The month with the least sunshine days is May (3.6 days).

Average UV index in December
Yabucoa, PR

Average UV index in December - Yabucoa, PR
  • Average UV index in December: 6

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

Average cloud cover in December
Yabucoa, PR

Average cloud cover in December - Yabucoa, PR
  • Average cloud cover in December: 40

The month with the most cloud cover is May (Cloud cover 42).
The months with the least cloud cover are February and September (Cloud cover 34).

Average visibility in December
Yabucoa, PR

Average visibility in December - Yabucoa, PR
  • Average visibility in December: 6mi

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

Yabucoa, Puerto Rico, USA

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