December weather forecastBarranquitas, PR
December
Weather in December
December embodies the arrival of winter in Barranquitas, exhibiting cooler temperatures and reduced rainfall. The lowering temperature, reaching down to an average low of 72.9°F (22.7°C), introduces a refreshing change to the year-round tropical heat. The winter season manifests itself subtly, maintaining the overall warm climate while offering a cooler environment. December remains as enticing as any other month, drawing in visitors with its cooler climate, while still embracing them with its warm, sunny afternoons. Entering this festive season, Barranquitas shows that its tropical charm remains invincible, unaffected by changing seasons or varying temperatures.Temperature
Barranquitas records an average high-temperature of a still warm 80.6°F (27°C) in December, closely mirroring the climate of the previous month. Barranquitas's December nights witness minimal differential from the daytime temperatures, with averages of 72.9°F (22.7°C).Heat index
The heat index for December is evaluated at a hot 86°F (30°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.Consider that heat index readings are for situations in the shade and light wind. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
In Barranquitas, the average relative humidity in December is 81%.Rainfall
In Barranquitas, in December, it is raining for 21.2 days, with typically 1.81" (46mm) of accumulated precipitation. In Barranquitas, during the entire year, the rain falls for 273.8 days and collects up to 33.19" (843mm) 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 6:41 am and sunset at 5:47 pm. On the last day of December, in Barranquitas, sunrise is at 6:56 am and sunset at 6:00 pm AST.
Sunshine
With an average of 6.5h of sunshine, December has the least sunshine of the year in Barranquitas.UV index
The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 6 in December, converts into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. 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. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Barranquitas, PR
- Average high temperature in December: 80.6°F
The warmest month (with the highest average high temperature) is August (85.8°F).
The month with the lowest average high temperature is January (79.3°F).
- Average low temperature in December: 72.9°F
The months with the highest average low temperature are July, August and September (76.6°F).
The coldest month (with the lowest average low temperature) is February (71.2°F).
Average pressure in December
Barranquitas, PR
- Average pressure in December: 29.98"Hg
The month with the highest atmospheric pressure is January (30.02"Hg).
The month with the lowest atmospheric pressure is October (29.9"Hg).
Average wind speed in December
Barranquitas, PR
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is July (8.4mph).
The calmest month (with the lowest average wind speed) is October (5.8mph).
Average humidity in December
Barranquitas, PR
- Average humidity in December: 81%
The month with the highest relative humidity is November (83%).
The month with the lowest relative humidity is March (77%).
Average rainfall in December
Barranquitas, PR
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is September (4.45").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days in December
Barranquitas, PR
- Average rainfall days in December: 21.2 days
The month with the highest number of rainy days is May (26.7 days).
The month with the least rainy days is February (17.8 days).
Average daylight in December /
Average sunshine in December
Barranquitas, PR
- 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 30min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in December
Barranquitas, PR
- Average sunshine days in December: 3.3 days
The month with the most sunshine days is March (4.3 days).
The month with the least sunshine days is August (1.2 days).
Average UV index in December
Barranquitas, PR
- Average UV index in December: 6
The months with the highest UV index are May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, November and December (UV index 6).
Average cloud cover in December
Barranquitas, PR
- Average cloud cover in December: 36
The months with the most cloud cover are May and July (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in December
Barranquitas, 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).





