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 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 onset of December notes an average high-temperature of a still warm 82.8°F (28.2°C), subtly shifted from November's 83.8°F (28.8°C). Throughout December, Hormigueros records a steady low-temperature average of 75°F (23.9°C), a minor decrease from its daytime counterpart.Heat index
The heat index for December is estimated at a tropical 89.6°F (32°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Humidity
The average relative humidity in December is 76%.Rainfall
In Hormigueros, during December, the rain falls for 15.6 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Hormigueros, during the entire year, the rain falls for 235 days and collects up to 25.55" (649mm) 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 December, sunrise is at 6:44 am and sunset at 5:51 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:03 pm AST.
Sunshine
The average sunshine in December in Hormigueros is 7.7h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index, 6 during December, leads to the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in December?
What is the average humidity in December?
How many days does it rain in December?
What is the month with the shortest days?
How many hours of daylight does Hormigueros have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Hormigueros have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Hormigueros, PR
- Average high temperature in December: 82.8°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 (81.3°F).
- Average low temperature in December: 75°F
The months with the highest average low temperature are July and August (78.8°F).
The coldest month (with the lowest average low temperature) is February (73.4°F).
Average pressure in December
Hormigueros, 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
Hormigueros, PR
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is July (8.7mph).
The calmest months (with the lowest average wind speed) are October and November (7mph).
Average humidity in December
Hormigueros, PR
- Average humidity in December: 76%
The month with the highest relative humidity is November (78%).
The month with the lowest relative humidity is March (74%).
Average rainfall in December
Hormigueros, PR
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is September (3.58").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in December
Hormigueros, PR
- Average rainfall days in December: 15.6 days
The month with the highest number of rainy days is May (24.3 days).
The month with the least rainy days is January (13.5 days).
Average daylight in December /
Average sunshine in December
Hormigueros, 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 4min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is November (Average sunshine: 7h and 6min).
Average sunshine days in December
Hormigueros, PR
- Average sunshine days in December: 11.4 days
The month with the most sunshine days is January (13.5 days).
The month with the least sunshine days is May (4.7 days).
Average UV index in December
Hormigueros, PR
- Average UV index in December: 6
The months with the highest UV index are March, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February and December (UV index 6).
Average cloud cover in December
Hormigueros, PR
- Average cloud cover in December: 20
The month with the most cloud cover is May (Cloud cover 28).
The months with the least cloud cover are January, February and December (Cloud cover 20).
Average visibility in December
Hormigueros, 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).
Hormigueros, Puerto Rico, USA
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