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
The start of December sees the average high-temperature at a still warm 81.3°F (27.4°C), showing little difference from November's 82.8°F (28.2°C). The month of December in Barceloneta is marked by an average minimum temperature of 75.2°F (24°C), slightly cooler than its daytime counterpart.Heat index
The heat index value during December is estimated at a tropical 86°F (30°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.Always consider that heat index estimations are for light winds and places in the shade. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
In December, the average relative humidity in Barceloneta is 78%.Rainfall
In December, in Barceloneta, Puerto Rico, the rain falls for 14.4 days. Throughout December, 1.38" (35mm) of precipitation is accumulated. In Barceloneta, during the entire year, the rain falls for 213.7 days and collects up to 28.66" (728mm) of precipitation.Ocean temperature
In Barceloneta, Puerto Rico, in December, the average water temperature is 81.9°F (27.7°C).Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are regarded as highly pleasant, making all water activities enjoyable without any discomfort over long durations.
Daylight
The month with the shortest days in Barceloneta is December, with an average of 11h and 0min of daylight.On the first day of the month, sunrise is at 6:42 am and sunset at 5:48 pm. On the last day of December, sunrise is at 6:58 am and sunset at 6:00 pm AST.
Sunshine
In December, the average sunshine in Barceloneta is 6.9h.UV index
The months with the lowest UV index are January through March and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 in December interprets into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Enhance your sun protection with tightly woven, yet airy clothing. Attention! The reflection of both water and sand can increase the intensity of UV rays.
Frequently asked questions
What are December temperatures in Barceloneta?
What is the average humidity in December in Barceloneta?
How many days does it rain in December in Barceloneta?
What is the ocean temperature in December in Barceloneta?
What is the month with the shortest days in Barceloneta?
What is the average length of the day in December in Barceloneta?
When are sunrise and sunset in December in Barceloneta?
How long on average sun shines in December in Barceloneta?
What is the month with the lowest UV index in Barceloneta?
How high is the UV index in December in Barceloneta?
Average temperature in December
Barceloneta, PR
- Average high temperature in December: 81.3°F
The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is March (80.2°F).
- Average low temperature in December: 75.2°F
The month with the highest average low temperature is August (78.4°F).
The coldest month (with the lowest average low temperature) is March (72.5°F).
Average pressure in December
Barceloneta, 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
Barceloneta, PR
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is July (9.9mph).
The calmest month (with the lowest average wind speed) is October (6.8mph).
Average humidity in December
Barceloneta, PR
- Average humidity in December: 78%
The months with the highest relative humidity are May, June, July, October and November (79%).
The months with the lowest relative humidity are February, March and April (77%).
Average rainfall in December
Barceloneta, PR
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in December
Barceloneta, PR
- Average rainfall days in December: 14.4 days
The month with the highest number of rainy days is May (22.9 days).
The month with the least rainy days is January (13.3 days).
Average sea temperature in December
Barceloneta, PR
- Average sea temperature in December: 81.9°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 (79.1°F).
Average daylight in December /
Average sunshine in December
Barceloneta, PR
- Average daylight in December: 11h and 0min
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 0min).
- Average sunshine in December: 6h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 48min).
Average sunshine days in December
Barceloneta, PR
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is January (12.3 days).
The month with the least sunshine days is May (5.9 days).
Average UV index in December
Barceloneta, PR
- Average UV index in December: 6
The months with the highest UV index are April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 6).
Average cloud cover in December
Barceloneta, PR
- Average cloud cover in December: 31
The month with the most cloud cover is May (Cloud cover 34).
The month with the least cloud cover is September (Cloud cover 25).
Average visibility in December
Barceloneta, 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).
Barceloneta, Puerto Rico, USA
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