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 sea temperature 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
During December, the average high-temperature is a still moderately hot 80.2°F (26.8°C), maintaining a close resemblance to that of the preceding month. Recording a slight drop from the daily maximum, Vieques notes an average low temperature of 77.2°F (25.1°C) in the month of December.Humidity
In December, the average relative humidity is 77%.Rainfall
In Vieques, Puerto Rico, in December, it is raining for 18.1 days, with typically 1.57" (40mm) of accumulated precipitation. Throughout the year, in Vieques, there are 216 rainfall days, and 21.5" (546mm) of precipitation is accumulated.Ocean temperature
In December, the average ocean temperature is 81.9°F (27.7°C).Note: For swimming, diving, and enjoying other water activities, the range of 77°F (25°C) to 84.2°F (29°C) in water temperature is considered ideal, offering pleasure for extended periods without discomfort.
Daylight
The month with the shortest days is December, with an average of 11h and 6min of daylight.On the first day of December in Vieques, sunrise is at 6:37 am and sunset at 5:44 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 5:56 pm AST.
Sunshine
December has the least sunshine of the year in Vieques, with an average of 6.4h of sunshine.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 reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 7 in December translates into this advice:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Heads up! UV intensity is amplified by reflections from water and sand.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Vieques?
What is the average humidity in December in Vieques?
How much does it rain in Vieques in December?
What is the water temperature in December in Vieques?
What is the month with the shortest days in Vieques?
What is the average length of the day in December in Vieques?
When are sunrise and sunset in December in Vieques?
What is the month with the least sunshine in Vieques?
How long on average sun shines in December in Vieques?
What are the months with the highest UV index in Vieques?
What is the UV index reading in December in Vieques?
Average temperature in December
Vieques, 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
Vieques, 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
Vieques, 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
Vieques, 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
Vieques, 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
Vieques, 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 sea temperature in December
Vieques, PR
- Average sea temperature in December: 81.7°F
The best month for swimming (with the highest average sea temperature) is September (85°F).
The coldest month (with the lowest average sea temperature) is February (78.7°F).
Average daylight in December /
Average sunshine in December
Vieques, 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
Vieques, 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
Vieques, 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
Vieques, 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
Vieques, 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).
Vieques, Puerto Rico, USA
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