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
With the onset of December, the average high-temperature stands at a still warm 80.2°F (26.8°C), closely aligned with November's 82.2°F (27.9°C). Throughout December, Naguabo reports a steady low-temperature average of 77.2°F (25.1°C), slightly lower than its daytime counterpart.Humidity
In December, the average relative humidity is 77%.Rainfall
In Naguabo, Puerto Rico, in December, it is raining for 18.1 days, with typically 1.57" (40mm) of accumulated precipitation. In Naguabo, during the entire year, the rain falls for 216 days and collects up to 21.5" (546mm) of precipitation.Daylight
With an average of 11h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:38 am and sunset at 5:45 pm. On the last day of December, sunrise is at 6:54 am and sunset at 5:58 pm AST.
Sunshine
With an average of 6.4h of sunshine, December has the least sunshine of the year.UV index
The months with the highest UV index are January, March through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 7 transforms into these recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the average humidity in December?
How much does it rain in December?
What is the month with the shortest days?
How many hours of daylight does Naguabo have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the highest UV index?
What is the UV index intensity in December?
Average temperature in December
Naguabo, PR
- Average high temperature in December: 80.2°F
The warmest month (with the highest average high temperature) is August (84.2°F).
The month with the lowest average high temperature is March (79°F).
- Average low temperature in December: 77.2°F
The months with the highest average low temperature are September and October (80.8°F).
The coldest months (with the lowest average low temperature) are February and March (75.7°F).
Average pressure in December
Naguabo, PR
- Average pressure in December: 29.98"Hg
The months with the highest atmospheric pressure are January and February (30.02"Hg).
The month with the lowest atmospheric pressure is October (29.9"Hg).
Average wind speed in December
Naguabo, PR
- Average wind speed in December: 11.6mph
The windiest month (with the highest average wind speed) is July (12mph).
The calmest month (with the lowest average wind speed) is October (8.6mph).
Average humidity in December
Naguabo, PR
- Average humidity in December: 77%
The months with the highest relative humidity are May, June, July and August (79%).
The months with the lowest relative humidity are February and March (76%).
Average rainfall in December
Naguabo, PR
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is February (1.06").
Average rainfall days in December
Naguabo, PR
- Average rainfall days in December: 18.1 days
The month with the highest number of rainy days is August (21.3 days).
The month with the least rainy days is February (13.8 days).
Average daylight in December /
Average sunshine in December
Naguabo, 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 36min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in December
Naguabo, PR
- Average sunshine days in December: 8.5 days
The month with the most sunshine days is March (10 days).
The month with the least sunshine days is November (4.9 days).
Average UV index in December
Naguabo, PR
- Average UV index in December: 7
The months with the highest UV index are January, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is February (UV index 6).
Average cloud cover in December
Naguabo, PR
- Average cloud cover in December: 39
The months with the most cloud cover are May and July (Cloud cover 40).
The months with the least cloud cover are February, September and October (Cloud cover 33).
Average visibility in December
Naguabo, 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).
Naguabo, Puerto Rico, USA
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