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
As December arrives, a slight rise in the average high-temperature is observed, moving from 25.3°C in November to a still warm 29.2°C. The average nighttime temperature in Buenos Aires lowers to a comfortable 17.8°C throughout December.Heat index
The average heat index in December is computed to be a tropical 31°C. If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.Understand that the heat index values take into account shaded locations and mild winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humidity
In December, the average relative humidity in Buenos Aires is 58%.Rainfall
In Buenos Aires, in December, during 9.5 rainfall days, 69mm of precipitation is typically accumulated. In Buenos Aires, during the entire year, the rain falls for 108.2 days and collects up to 629mm of precipitation.Sea temperature
In December, the average sea temperature is 22.6°C.Note: If someone is sensitive to cold, the enjoyment of swimming in 22.6°C water hinges on factors like sunshine, wind, and the current air temperature. (For context: Olympic swimming competitions are held in water temperatures of 25°C to 28°C.)
Daylight
December has the longest days of the year in Buenos Aires, with an average of 14h and 24min of daylight.On the first day of December in Buenos Aires, sunrise is at 05:33 and sunset at 19:51. On the last day of the month, sunrise is at 05:43 and sunset at 20:09 -03.
Sunshine
The month with the most sunshine is December, with an average of 11.2h of sunshine.UV index
In December, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 6 during December translates into these guidelines:
Fend off overexposure. Sun protection is vital. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Alert! UV radiation becomes sharper due to reflections from sand and water.
FAQ
How hot is December in Buenos Aires?
What is the average humidity in December in Buenos Aires?
How much does it rain in Buenos Aires in December?
How warm is the water in December in Buenos Aires?
When are the longest days in Buenos Aires?
What is the average length of the day in December in Buenos Aires?
When is the sunrise / sunset in December in Buenos Aires?
What month has the most sunshine in Buenos Aires?
How long on average sun shines in December in Buenos Aires?
How high is the UV index in December in Buenos Aires?
Average temperature in December
Buenos Aires, Argentina
- Average high temperature in December: 29.2°C
The warmest month (with the highest average high temperature) is January (30.9°C).
The month with the lowest average high temperature is July (14°C).
- Average low temperature in December: 17.8°C
The month with the highest average low temperature is January (20°C).
The coldest month (with the lowest average low temperature) is July (8.1°C).
Average pressure in December
Buenos Aires, Argentina
- Average pressure in December: 1011mbar
The month with the highest atmospheric pressure is July (1019.2mbar).
The month with the lowest atmospheric pressure is December (1011mbar).
Average wind speed in December
Buenos Aires, Argentina
- Average wind speed in December: 13.3km/h
The windiest month (with the highest average wind speed) is September (15.8km/h).
The calmest month (with the lowest average wind speed) is March (13.2km/h).
Average humidity in December
Buenos Aires, Argentina
- Average humidity in December: 58%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is January (56%).
Average rainfall in December
Buenos Aires, Argentina
- Average rainfall in December: 69mm
The wettest month (with the highest rainfall) is November (78mm).
The driest month (with the least rainfall) is June (38mm).
Average rainfall days in December
Buenos Aires, Argentina
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is October (10.8 days).
The month with the least rainy days is August (7 days).
Average sea temperature in December
Buenos Aires, Argentina
- Average sea temperature in December: 22.6°C
The best month for swimming (with the highest average sea temperature) is January (25°C).
The coldest month (with the lowest average sea temperature) is July (11.9°C).
Average daylight in December /
Average sunshine in December
Buenos Aires, Argentina
- Average daylight in December: 14h and 2min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in December: 11h and 1min
The month with the most sunshine is December (Average sunshine: 11h and 12min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).
Average sunshine days in December
Buenos Aires, Argentina
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is January (21.6 days).
The month with the least sunshine days is October (17.4 days).
Average UV index in December
Buenos Aires, Argentina
- Average UV index in December: 6
The month with the highest UV index is January (UV index 7).
The months with the lowest UV index are June and July (UV index 3).
Average cloud cover in December
Buenos Aires, Argentina
- Average cloud cover in December: 19
The month with the most cloud cover is July (Cloud cover 37).
The month with the least cloud cover is January (Cloud cover 17).
Average visibility in December
Buenos Aires, Argentina
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
Buenos Aires, Argentina
Weather forecast for your location
2. Allow the app to use your location
