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
The start of December sees the average high-temperature at a still warm 28.2°C (82.8°F), showing little difference from November's 26.4°C (79.5°F). Leblon reports an average low-temperature of 23°C (73.4°F) during the nights of December.Heat index
The heat index for December is calculated to be a tropical 33°C (91.4°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Humidity
In December, the average relative humidity in Leblon is 81%.Rainfall
In Leblon, in December, it is raining for 21.9 days, with typically 98mm (3.86") of accumulated precipitation. Throughout the year, there are 192.5 rainfall days, and 812mm (31.97") of precipitation is accumulated.Daylight
The month with the longest days in Leblon is December, with an average of 13h and 30min of daylight.On the first day of the month, sunrise is at 04:58 and sunset at 18:25. On the last day of December, in Leblon, sunrise is at 05:10 and sunset at 18:41 -03.
Sunshine
In December, the average sunshine in Leblon is 8.3h.UV index
The average daily maximum UV index in December is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, a regular UV index of 6 translates into these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
How hot is December in Leblon?
What is the average humidity in December in Leblon?
How much does it rain in Leblon in December?
When are the longest days in Leblon?
How many hours of daylight does Leblon have in December?
When is the sunrise / sunset in December in Leblon?
How many hours of sunshine does Leblon have in December?
What is the UV index intensity in December in Leblon?
Average temperature in December
Leblon, Brazil
- Average high temperature in December: 28.2°C
The warmest month (with the highest average high temperature) is February (29.7°C).
The month with the lowest average high temperature is July (24°C).
- Average low temperature in December: 23°C
The month with the highest average low temperature is January (23.7°C).
The coldest month (with the lowest average low temperature) is August (18.5°C).
Average pressure in December
Leblon, Brazil
- Average pressure in December: 1011.9mbar
The month with the highest atmospheric pressure is July (1020.5mbar).
The month with the lowest atmospheric pressure is December (1011.9mbar).
Average wind speed in December
Leblon, Brazil
- Average wind speed in December: 9.5km/h
The windiest months (with the highest average wind speed) are August and September (11.3km/h).
The calmest month (with the lowest average wind speed) is March (8.7km/h).
Average humidity in December
Leblon, Brazil
- Average humidity in December: 81%
The month with the highest relative humidity is November (82%).
The month with the lowest relative humidity is August (76%).
Average rainfall in December
Leblon, Brazil
- Average rainfall in December: 98mm
The wettest month (with the highest rainfall) is November (119mm).
The driest month (with the least rainfall) is June (29mm).
Average rainfall days in December
Leblon, Brazil
- Average rainfall days in December: 21.9 days
The month with the highest number of rainy days is March (22.7 days).
The month with the least rainy days is July (9.3 days).
Average daylight in December /
Average sunshine in December
Leblon, Brazil
- Average daylight in December: 13h and 3min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 42min).
- Average sunshine in December: 8h and 2min
The month with the most sunshine is February (Average sunshine: 8h and 48min).
The month with the least sunshine is October (Average sunshine: 7h and 30min).
Average sunshine days in December
Leblon, Brazil
- Average sunshine days in December: 4.8 days
The month with the most sunshine days is July (20.6 days).
The month with the least sunshine days is December (4.8 days).
Average UV index in December
Leblon, Brazil
- Average UV index in December: 6
The month with the highest UV index is January (UV index 7).
The month with the lowest UV index is September (UV index 5).
Average cloud cover in December
Leblon, Brazil
- Average cloud cover in December: 39
The month with the most cloud cover is November (Cloud cover 46).
The month with the least cloud cover is February (Cloud cover 28).
Average visibility in December
Leblon, Brazil
- Average visibility in December: 9km
The months with the highest visibility are February, May, June, July, August and September (10km).
The months with the lowest visibility are January, March, April, October, November and December (9km).
Leblon, Brazil
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