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
December
Weather in December
Temperature
The dawn of December sees an average high-temperature of a still warm 29.1°C (84.4°F), subtly contrasting with November's 26.8°C (80.2°F). In Restinga de Jacarepagua, in December, the average low-temperature is a still warm 23°C (73.4°F).Heat index
During December, the heat index is calculated to be a sweltering 35°C (95°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.Understand that the heat index values take into account shaded locations and mild winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. 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 hold particular significance for children. 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.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.
Humidity
The average relative humidity in December in Restinga de Jacarepagua is 81%.Rainfall
In Restinga de Jacarepagua, in December, during 18.1 rainfall days, 67mm (2.64") of precipitation is typically accumulated. Throughout the year, in Restinga de Jacarepagua, there are 172 rainfall days, and 543mm (21.38") of precipitation is accumulated.Daylight
With an average of 13h and 30min of daylight, December has the longest days of the year.On the first day of December, sunrise is at 04:59 and sunset at 18:26. On the last day of the month, sunrise is at 05:11 and sunset at 18:42 -03.
Sunshine
In Restinga de Jacarepagua, the average sunshine in December is 7.9h.UV index
The months with the highest UV index are January and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 7 during December translates into the following directions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Restinga de Jacarepagua during December?
What is the average humidity in December in Restinga de Jacarepagua?
How many days does it rain in December in Restinga de Jacarepagua?
When are the longest days in Restinga de Jacarepagua?
How many hours of daylight does Restinga de Jacarepagua have in December?
When is the sunrise / sunset in December in Restinga de Jacarepagua?
How long on average sun shines in December in Restinga de Jacarepagua?
What is the month with the highest UV index in Restinga de Jacarepagua?
How high is the UV index in December in Restinga de Jacarepagua?
Average temperature in December
Restinga de Jacarepagua, Brazil
- Average high temperature in December: 29.1°C
The warmest month (with the highest average high temperature) is February (30.6°C).
The month with the lowest average high temperature is July (24.5°C).
- Average low temperature in December: 23°C
The month with the highest average low temperature is January (23.3°C).
The coldest month (with the lowest average low temperature) is August (18°C).
Average pressure in December
Restinga de Jacarepagua, Brazil
- Average pressure in December: 1011.9mbar
The month with the highest atmospheric pressure is July (1020.4mbar).
The month with the lowest atmospheric pressure is December (1011.9mbar).
Average wind speed in December
Restinga de Jacarepagua, Brazil
- Average wind speed in December: 8.6km/h
The windiest months (with the highest average wind speed) are August and September (10.2km/h).
The calmest month (with the lowest average wind speed) is March (8km/h).
Average humidity in December
Restinga de Jacarepagua, 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 (77%).
Average rainfall in December
Restinga de Jacarepagua, Brazil
- Average rainfall in December: 67mm
The wettest month (with the highest rainfall) is February (75mm).
The driest months (with the least rainfall) are June and August (23mm).
Average rainfall days in December
Restinga de Jacarepagua, Brazil
- Average rainfall days in December: 18.1 days
The month with the highest number of rainy days is March (19.9 days).
The month with the least rainy days is August (9.4 days).
Average daylight in December /
Average sunshine in December
Restinga de Jacarepagua, 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: 7h and 5min
The month with the most sunshine is February (Average sunshine: 8h and 36min).
The months with the least sunshine are October and November (Average sunshine: 7h and 12min).
Average sunshine days in December
Restinga de Jacarepagua, Brazil
- Average sunshine days in December: 8.4 days
The month with the most sunshine days is August (19.2 days).
The month with the least sunshine days is March (8.2 days).
Average UV index in December
Restinga de Jacarepagua, Brazil
- Average UV index in December: 7
The months with the highest UV index are January and December (UV index 7).
The months with the lowest UV index are February, March, April, May, June, July, August, September, October and November (UV index 6).
Average cloud cover in December
Restinga de Jacarepagua, Brazil
- Average cloud cover in December: 42
The month with the most cloud cover is November (Cloud cover 49).
The month with the least cloud cover is February (Cloud cover 31).
Average visibility in December
Restinga de Jacarepagua, Brazil
- Average visibility in December: 9km
The months with the highest visibility are February, May, June and August (10km).
The months with the lowest visibility are January, March, April, July, September, October, November and December (9km).
