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 snowfall in December
- Average snowfall 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
December
Weather in December
Temperature
With the advent of December, Castro Barros's high-temperatures adjust to a still hot 32.1°C (89.8°F), closely aligning with the preceding month. Throughout December, the average low-temperature dips to an agreeable 21.5°C (70.7°F).Heat index
The heat index for December is computed to be a tropical 34°C (93.2°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. 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 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
The average relative humidity in December in Castro Barros is 46%.Rainfall
In Castro Barros, in December, it is raining for 13 days, with typically 70mm (2.76") of accumulated precipitation. Throughout the year, there are 96.6 rainfall days, and 408mm (16.06") of precipitation is accumulated.Snowfall
In Castro Barros, snow does not fall in January through June, August through December.Daylight
December has the longest days of the year, with an average of 14h and 6min of daylight.On the first day of the month, sunrise is at 06:12 and sunset at 20:11. On the last day of December, in Castro Barros, Argentina, sunrise is at 06:23 and sunset at 20:28 -03.
Sunshine
The average sunshine in December in Castro Barros is 9.2h.UV index
January, February and December, with an average maximum UV index of 7, are months with the highest UV index in Castro Barros. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 7 during December translates into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Castro Barros in December?
What is the average humidity in December in Castro Barros?
How many days does it rain in December in Castro Barros?
When it does not snow in Castro Barros?
When are the longest days in Castro Barros?
What is the average length of the day in December in Castro Barros?
When are sunrise and sunset in December in Castro Barros?
How many hours of sunshine does Castro Barros have in December?
What is the month with the highest UV index in Castro Barros?
What is the UV index reading in December in Castro Barros?
Average temperature in December
Castro Barros, Argentina
- Average high temperature in December: 32.1°C
The warmest month (with the highest average high temperature) is January (33°C).
The month with the lowest average high temperature is July (16.3°C).
- Average low temperature in December: 21.5°C
The month with the highest average low temperature is January (22.5°C).
The coldest month (with the lowest average low temperature) is July (7.5°C).
Average pressure in December
Castro Barros, Argentina
- Average pressure in December: 1006.9mbar
The month with the highest atmospheric pressure is July (1016.5mbar).
The month with the lowest atmospheric pressure is December (1006.9mbar).
Average wind speed in December
Castro Barros, Argentina
- Average wind speed in December: 15.7km/h
The windiest month (with the highest average wind speed) is November (16.7km/h).
The calmest month (with the lowest average wind speed) is June (9.9km/h).
Average humidity in December
Castro Barros, Argentina
- Average humidity in December: 46%
The month with the highest relative humidity is May (67%).
The month with the lowest relative humidity is September (44%).
Average rainfall in December
Castro Barros, Argentina
- Average rainfall in December: 70mm
The wettest month (with the highest rainfall) is January (76mm).
The driest month (with the least rainfall) is August (1mm).
Average rainfall days in December
Castro Barros, Argentina
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is December (13 days).
The month with the least rainy days is August (0.8 days).
Average snowfall in December
Castro Barros, Argentina
- Average snowfall in December: 0mm
The month with the highest snowfall is July (1mm).
The months with the least snowfall are January, February, March, April, May, June, August, September, October, November and December (0mm).
Average snowfall days in December
Castro Barros, Argentina
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is July (0.2 days).
The months with the least snowfall days are January, February, March, April, May, June, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Castro Barros, Argentina
- Average daylight in December: 14h and 1min
The month with the longest days is December (Average daylight: 14h and 6min).
The month with the shortest days is June (Average daylight: 10h and 12min).
- Average sunshine in December: 9h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is April (Average sunshine: 8h and 6min).
Average sunshine days in December
Castro Barros, Argentina
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is February (13.9 days).
Average UV index in December
Castro Barros, Argentina
- Average UV index in December: 7
The months with the highest UV index are January, February and December (UV index 7).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in December
Castro Barros, Argentina
- Average cloud cover in December: 21
The month with the most cloud cover is April (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in December
Castro Barros, Argentina
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
