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 arrival of December brings an average high-temperature of a still moderately hot 29.1°C (84.4°F), subtly diverging from November's 26.8°C (80.2°F). During December, the nighttime temperature averages to a still moderately hot 23°C (73.4°F).Heat index
The heat index in December is estimated at a fiery hot 35°C (95°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.When referencing the heat index, its values are suitable for shady environments and light breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are particularly relevant to babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
In Vila Militar, Brazil, the average relative humidity in December is 81%.Rainfall
In December, the rain falls for 18.1 days. Throughout December, 67mm (2.64") of precipitation is accumulated. Throughout the year, in Vila Militar, there are 172 rainfall days, and 543mm (21.38") of precipitation is accumulated.Daylight
December has the longest days of the year, with an average of 13h and 30min of daylight.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 Vila Militar, 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 value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 7 in December leads to these guidelines:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
How hot is December in Vila Militar?
What is the average humidity in December in Vila Militar?
How much does it rain in Vila Militar in December?
When are the longest days in Vila Militar?
How many hours of daylight does Vila Militar have in December?
When are sunrise and sunset in December in Vila Militar?
How long on average sun shines in December in Vila Militar?
What are the months with the highest UV index in Vila Militar?
How high is the UV index in December in Vila Militar?
Average temperature in December
Vila Militar, 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
Vila Militar, 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
Vila Militar, 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
Vila Militar, 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
Vila Militar, 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
Vila Militar, 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
Vila Militar, 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 48min).
- 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
Vila Militar, 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
Vila Militar, 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
Vila Militar, 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
Vila Militar, 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).
Vila Militar, Brazil
Weather forecast for your location
2. Allow the app to use your location
