December weather forecastGuanacés, Brazil

December

Weather in December

The first month of the summer, December, is still a hot month in Guanacés, Brazil, with an average temperature varying between 30°C (86°F) and 25.8°C (78.4°F).

Temperature

December notes an average high-temperature of a still hot 30°C (86°F), subtly differing from November's 30.1°C (86.2°F). The low temperature average during December reflects a slight decrease to a moderately hot 25.8°C (78.4°F) from the day's peak.

Heat index

Throughout December, the heat index is evaluated at a sweltering 36°C (96.8°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In Guanacés, Brazil, the average relative humidity in December is 74%.

Rainfall

In December, the rain falls for 12.4 days. Throughout December, 34mm (1.34") of precipitation is accumulated. In Guanacés, during the entire year, the rain falls for 191.3 days and collects up to 805mm (31.69") of precipitation.

Daylight

December has the longest days of the year, with an average of 12h and 24min of daylight.
On the first day of December in Guanacés, sunrise is at 05:12 and sunset at 17:32. On the last day of the month, sunrise is at 05:25 and sunset at 17:47 -03.

Sunshine

The months with the least sunshine are January and December, with an average of 7.9h of sunshine.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Guanacés are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 7 in December interprets into the following advice:
Resist extreme sun exposure. Guarding against solar damage is essential. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Frequently asked questions

In December, the average high-temperature and low-temperature are 30°C (86°F) and 25.8°C (78.4°F) respectively. 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 evaluated at 36°C (96.8°F).

In December, the average relative humidity is 74%.

In Guanacés, in December, it is raining for 12.4 days, with typically 34mm (1.34") of accumulated precipitation.

The month with the longest days in Guanacés is December, with an average of 12h and 24min of daylight.

In Guanacés, the average day length in December is 12h and 22min.

In December, on the first day of the month, sunrise is at 05:12 and sunset at 17:32. On the last day of the month, in Guanacés, sunrise is at 05:25 and sunset at 17:47 -03.

January and December, with an average of 7.9h of sunshine, are months with the least sunshine.

The average sunshine duration in December is 7.9h.

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

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

In Guanacés, the average daily maximum UV index in December is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
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
Guanacés, Brazil

  • Average high temperature in December: 30°C

The warmest months (with the highest average high temperature) are October and November (30.1°C).
The month with the lowest average high temperature is July (29°C).

  • Average low temperature in December: 25.8°C

The months with the highest average low temperature are January, March and December (25.8°C).
The coldest month (with the lowest average low temperature) is August (23.5°C).

Average pressure in December
Guanacés, Brazil

  • Average pressure in December: 1010.5mbar

The month with the highest atmospheric pressure is July (1013.9mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).

Average wind speed in December
Guanacés, Brazil

  • Average wind speed in December: 22.2km/h

The windiest month (with the highest average wind speed) is September (26.2km/h).
The calmest month (with the lowest average wind speed) is April (15.7km/h).

Average humidity in December
Guanacés, Brazil

  • Average humidity in December: 74%

The months with the highest relative humidity are April and May (79%).
The month with the lowest relative humidity is September (71%).

Average rainfall in December
Guanacés, Brazil

  • Average rainfall in December: 34mm

The wettest month (with the highest rainfall) is April (143mm).
The driest months (with the least rainfall) are September and October (5mm).

Average rainfall days in December
Guanacés, Brazil

  • Average rainfall days in December: 12.4 days

The month with the highest number of rainy days is April (23.9 days).
The month with the least rainy days is September (5.8 days).

Average daylight in December /
Average sunshine in December
Guanacés, 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 54min).

  • Average sunshine in December: 7h and 54min

The month with the most sunshine is August (Average sunshine: 9h and 12min).
The months with the least sunshine are January and December (Average sunshine: 7h and 54min).

Average sunshine days in December
Guanacés, Brazil

  • Average sunshine days in December: 13.4 days

The month with the most sunshine days is September (20.3 days).
The month with the least sunshine days is April (5.2 days).

Average UV index in December
Guanacés, 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
Guanacés, Brazil

  • Average cloud cover in December: 37

The month with the most cloud cover is April (Cloud cover 40).
The months with the least cloud cover are August and September (Cloud cover 22).

Average visibility in December
Guanacés, 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).