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
December registers an average high-temperature of a still moderately hot 28.2°C (82.8°F), slightly varied from November's 26.4°C (79.5°F). In the month of December, Gávea witnesses a consistent average low-temperature of 23°C (73.4°F).Heat index
During December, the heat index is estimated at a tropical 33°C (91.4°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.Observations indicate that the heat index values are for shady locations with light wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Humidity
The average relative humidity in December in Gávea is 81%.Rainfall
In Gávea, in December, during 21.9 rainfall days, 98mm (3.86") of precipitation is typically accumulated. Throughout the year, in Gávea, Brazil, there are 192.5 rainfall days, and 812mm (31.97") of precipitation is accumulated.Daylight
With an average of 13h and 30min of daylight, December has the longest days of the year in Gávea.On the first day of the month, sunrise is at 04:58 and sunset at 18:25. On the last day of December, sunrise is at 05:10 and sunset at 18:41 -03.
Sunshine
In Gávea, Brazil, the average sunshine in December is 8.3h.UV index
The average daily maximum UV index in December is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum UV index of 6 in December translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. 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 Gávea during December?
What is the average humidity in December in Gávea?
How many days does it rain in December in Gávea?
When are the longest days in Gávea?
What is the average length of the day in December in Gávea?
What time are sunrise and sunset in December in Gávea?
How long on average sun shines in December in Gávea?
What is the UV index reading in December in Gávea?
Average temperature in December
Gávea, 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
Gávea, 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
Gávea, 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
Gávea, 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
Gávea, 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
Gávea, 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
Gávea, 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
Gávea, 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
Gávea, 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
Gávea, 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
Gávea, 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).
