December weather forecastUpanema, Brazil

December weather for Upanema, Brazil: December, the first month of the summer in Upanema, is still a very hot month, with an average temperature fluctuating between 24.2°C (75.6°F) and 35°C (95°F). The months with the highest UV index in Upanema, Brazil, are January through December, with an average maximum UV index of 7.

December

Weather in December

December, the first month of the summer in Upanema, is still a very hot month, with an average temperature fluctuating between 24.2°C (75.6°F) and 35°C (95°F).

Temperature

December's onset records a minor alteration in the average high-temperature to a still torrid 35°C (95°F) from November's 35.5°C (95.9°F). In Upanema, an average temperature of 24.2°C (75.6°F) is noted during December nights.

Heat index

During December, the heat index is estimated at a scorching 44°C (111.2°F). Keep on guard: Heat exhaustion and heat cramps are probable. Heatstroke is a possible danger with ongoing physical activity.
Heat index readings emphasize conditions of light breezes and shaded spots. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. 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 important for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In December, the average relative humidity in Upanema is 57%.

Rainfall

In Upanema, Brazil, in December, it is raining for 4.3 days, with typically 10mm (0.39") of accumulated precipitation. In Upanema, during the entire year, the rain falls for 112.4 days and collects up to 381mm (15") of precipitation.

Daylight

With an average of 12h and 24min of daylight, December has the longest days of the year.
On the first day of December in Upanema, sunrise is at 05:05 and sunset at 17:31. On the last day of the month, sunrise is at 05:18 and sunset at 17:45 -03.

Sunshine

The average sunshine in December is 8.9h.

UV index

The months with the highest UV index in Upanema are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 7 in December translates into the following recommendations:
Fend off overexposure. Sun protection is vital. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Frequently asked questions

December temperatures in Upanema vary between a high-temperature of 35°C (95°F) and a low-temperature of 24.2°C (75.6°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in December is estimated at 44°C (111.2°F).

The average relative humidity in December in Upanema is 57%.

In Upanema, during December, the rain falls for 4.3 days and regularly aggregates up to 10mm (0.39") of precipitation.

December has the longest days of the year in Upanema, with an average of 12h and 24min of daylight.

In Upanema, Brazil, the average day length in December is 12h and 27min.

In December, on the first day of the month, sunrise is at 05:05 and sunset at 17:31. On the last day of the month, in Upanema, sunrise is at 05:18 and sunset at 17:45 -03.

In December, the average sunshine duration in Upanema is 8.9h.

The months with the highest UV index in Upanema, Brazil, are January through December, with an average maximum UV index of 7.

The months with the lowest UV index in Upanema are January through December, with an average maximum UV index of 7.

The average daily maximum UV index in December is 7. A UV Index of 6 to 7 symbolizes a high hazard to health 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
Upanema, Brazil

  • Average high temperature in December: 35°C

The warmest month (with the highest average high temperature) is October (35.7°C).
The month with the lowest average high temperature is July (32°C).

  • Average low temperature in December: 24.2°C

The month with the highest average low temperature is January (24.6°C).
The coldest months (with the lowest average low temperature) are July and August (21.7°C).

Average pressure in December
Upanema, Brazil

  • Average pressure in December: 1010.9mbar

The month with the highest atmospheric pressure is July (1014.6mbar).
The month with the lowest atmospheric pressure is November (1010.7mbar).

Average wind speed in December
Upanema, Brazil

  • Average wind speed in December: 19km/h

The windiest months (with the highest average wind speed) are September and October (20.5km/h).
The calmest month (with the lowest average wind speed) is April (12.3km/h).

Average humidity in December
Upanema, Brazil

  • Average humidity in December: 57%

The month with the highest relative humidity is April (73%).
The months with the lowest relative humidity are September and October (55%).

Average rainfall in December
Upanema, Brazil

  • Average rainfall in December: 10mm

The wettest month (with the highest rainfall) is March (92mm).
The driest months (with the least rainfall) are October and November (1mm).

Average rainfall days in December
Upanema, Brazil

  • Average rainfall days in December: 4.3 days

The month with the highest number of rainy days is April (17.2 days).
The month with the least rainy days is November (1.4 days).

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

  • Average daylight in December: 12h and 24min

The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 48min).

  • Average sunshine in December: 8h and 54min

The month with the most sunshine is September (Average sunshine: 9h and 36min).
The month with the least sunshine is March (Average sunshine: 8h and 18min).

Average sunshine days in December
Upanema, Brazil

  • Average sunshine days in December: 25.2 days

The month with the most sunshine days is October (28.5 days).
The month with the least sunshine days is April (11.8 days).

Average UV index in December
Upanema, Brazil

  • Average UV index in December: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average cloud cover in December
Upanema, Brazil

  • Average cloud cover in December: 27

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 16).

Average visibility in December
Upanema, Brazil

  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).