Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The advent of December in Adjuntas reveals an average high-temperature of a still warm 82.4°F (28°C), showing minimal difference from the prior month. December brings an average low-temperature of 73.2°F (22.9°C) to Adjuntas.Heat index
In December, the heat index is appraised at a tropical 89.6°F (32°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Humidity
The average relative humidity in December in Adjuntas is 78%.Rainfall
In December, the rain falls for 16.3 days. Throughout December, 1.22" (31mm) of precipitation is accumulated. Throughout the year, there are 224.9 rainfall days, and 23.58" (599mm) of precipitation is accumulated.Snowfall
In Adjuntas, Puerto Rico, snow does not fall in January through August, October through December.Daylight
December has the shortest days of the year in Adjuntas, with an average of 11h and 6min of daylight.On the first day of the month, sunrise is at 6:42 am and sunset at 5:49 pm. On the last day of December, in Adjuntas, Puerto Rico, sunrise is at 6:58 am and sunset at 6:02 pm AST.
Sunshine
In December, the average sunshine is 7.4h.UV index
January through March, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Adjuntas, Puerto Rico. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 6 in December, converts into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Adjuntas in December?
What is the average humidity in December in Adjuntas?
How much does it rain in Adjuntas in December?
When it does not snow in Adjuntas?
What is the month with the shortest days in Adjuntas?
How many hours of daylight does Adjuntas have in December?
What time are sunrise and sunset in December in Adjuntas?
How many hours of sunshine does Adjuntas have in December?
What is the month with the lowest UV index in Adjuntas?
What is the UV index intensity in December in Adjuntas?
Average temperature in December
Adjuntas, PR
- Average high temperature in December: 82.4°F
The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is January (81.9°F).
- Average low temperature in December: 73.2°F
The months with the highest average low temperature are July, August and October (76.6°F).
The coldest month (with the lowest average low temperature) is March (71.4°F).
Average pressure in December
Adjuntas, PR
- Average pressure in December: 29.97"Hg
The months with the highest atmospheric pressure are January and February (30.01"Hg).
The month with the lowest atmospheric pressure is October (29.89"Hg).
Average wind speed in December
Adjuntas, PR
- Average wind speed in December: 6.7mph
The windiest month (with the highest average wind speed) is July (8mph).
The calmest month (with the lowest average wind speed) is November (5.6mph).
Average humidity in December
Adjuntas, PR
- Average humidity in December: 78%
The month with the highest relative humidity is November (80%).
The month with the lowest relative humidity is March (75%).
Average rainfall in December
Adjuntas, PR
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is September (3.58").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in December
Adjuntas, PR
- Average rainfall days in December: 16.3 days
The month with the highest number of rainy days is November (22.5 days).
The month with the least rainy days is February (14.8 days).
Average snowfall days in December
Adjuntas, PR
- 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).
Average daylight in December /
Average sunshine in December
Adjuntas, 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: 7h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is November (Average sunshine: 7h and 6min).
Average sunshine days in December
Adjuntas, PR
- Average sunshine days in December: 9.4 days
The month with the most sunshine days is June (12.2 days).
The month with the least sunshine days is November (5.1 days).
Average UV index in December
Adjuntas, PR
- Average UV index in December: 6
The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 6).
Average cloud cover in December
Adjuntas, PR
- Average cloud cover in December: 23
The month with the most cloud cover is May (Cloud cover 30).
The months with the least cloud cover are January and February (Cloud cover 22).
Average visibility in December
Adjuntas, 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).
Adjuntas, Puerto Rico, USA
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