December weather forecastMagé, Brazil

December

Weather in December

December, the first month of the summer in Magé, is still a warm month, with temperature in the range of an average low of 20.9°C (69.6°F) and an average high of 28.3°C (82.9°F).

Temperature

December's weather records an average high-temperature of a still warm 28.3°C (82.9°F), showing little deviation from November. An average low-temperature of 20.9°C (69.6°F) is common during the nights of December.

Heat index

For December, the heat index is appraised at a hot 34°C (93.2°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Consider that heat index readings are for situations in the shade and light wind. 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 'real feel' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.

Humidity

In December, the average relative humidity is 84%.

Rainfall

In December, in Magé, the rain falls for 26.8 days. Throughout December, 141mm (5.55") of precipitation is accumulated. In Magé, during the entire year, the rain falls for 228.9 days and collects up to 1079mm (42.48") of precipitation.

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 04:58 and sunset at 18:24. On the last day of the month, sunrise is at 05:10 and sunset at 18:40 -03.

Sunshine

In December, the average sunshine in Magé, Brazil, is 7.7h.

UV index

The months with the highest UV index in Magé are January through March, August, October through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 6 in December translates into this advice:
Shun overexposure. Protection from sun ravages is indispensable. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Frequently asked questions

The high-temperature, in December, in Magé, is 28.3°C (82.9°F), while the low-temperature averages to 20.9°C (69.6°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in December is appraised at 34°C (93.2°F).

The average relative humidity in December in Magé is 84%.

In Magé, during December, the rain falls for 26.8 days and regularly aggregates up to 141mm (5.55") of precipitation.

The month with the longest days is December, with an average of 13h and 30min of daylight.

The average day length in December in Magé is 13h and 30min.

On the first day of December in Magé, Brazil, sunrise is at 04:58 and sunset at 18:24. On the last day of the month, sunrise is at 05:10 and sunset at 18:40 -03.

In Magé, Brazil, the average sunshine duration in December is 7.7h.

January through March, August, October through December, with an average maximum UV index of 6, are months with the highest UV index in Magé.

In Magé, the average daily maximum UV index in December is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Magé, Brazil

  • Average high temperature in December: 28.3°C

The warmest month (with the highest average high temperature) is January (29.2°C).
The month with the lowest average high temperature is June (23.4°C).

  • Average low temperature in December: 20.9°C

The month with the highest average low temperature is January (21.3°C).
The coldest month (with the lowest average low temperature) is June (16°C).

Average pressure in December
Magé, Brazil

  • Average pressure in December: 1012mbar

The month with the highest atmospheric pressure is July (1020.6mbar).
The month with the lowest atmospheric pressure is December (1012mbar).

Average wind speed in December
Magé, Brazil

  • Average wind speed in December: 6.9km/h

The windiest month (with the highest average wind speed) is September (8.1km/h).
The calmest month (with the lowest average wind speed) is March (6.2km/h).

Average humidity in December
Magé, Brazil

  • Average humidity in December: 84%

The months with the highest relative humidity are March, April and November (85%).
The month with the lowest relative humidity is August (78%).

Average rainfall in December
Magé, Brazil

  • Average rainfall in December: 141mm

The wettest months (with the highest rainfall) are January and November (155mm).
The driest month (with the least rainfall) is July (31mm).

Average rainfall days in December
Magé, Brazil

  • Average rainfall days in December: 26.8 days

The month with the highest number of rainy days is December (26.8 days).
The month with the least rainy days is August (11.3 days).

Average daylight in December /
Average sunshine in December
Magé, Brazil

  • Average daylight in December: 13h and 30min

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 42min

The month with the most sunshine is February (Average sunshine: 8h and 24min).
The months with the least sunshine are October and November (Average sunshine: 7h and 18min).

Average sunshine days in December
Magé, Brazil

  • Average sunshine days in December: 2.2 days

The month with the most sunshine days is August (17.2 days).
The month with the least sunshine days is December (2.2 days).

Average UV index in December
Magé, Brazil

  • Average UV index in December: 6

The months with the highest UV index are January, February, March, August, October, November and December (UV index 6).
The months with the lowest UV index are April, May, June, July and September (UV index 5).

Average cloud cover in December
Magé, Brazil

  • Average cloud cover in December: 46

The month with the most cloud cover is November (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in December
Magé, Brazil

  • Average visibility in December: 8km

The months with the highest visibility are January, February, May, June, July, August, September and October (9km).
The months with the lowest visibility are March, April, November and December (8km).