December weather forecastManari, Brazil

December

Weather in December

December, the first month of the summer in Manari, is still a hot month, with temperature in the range of an average low of 20.3°C (68.5°F) and an average high of 31.9°C (89.4°F).

Temperature

Manari experiences a transition to a still tropical 31.9°C (89.4°F) in average high-temperatures with the arrival of December, not greatly differing from November's 32.3°C (90.1°F). Throughout December, Manari experiences a low-temperature average of 20.3°C (68.5°F).

Heat index

The average heat index in December is calculated to be a sweltering 37°C (98.6°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In December, the average relative humidity in Manari, Brazil, is 61%.

Rainfall

In Manari, during December, the rain falls for 10.2 days and regularly aggregates up to 36mm (1.42") of precipitation. In Manari, during the entire year, the rain falls for 157.8 days and collects up to 463mm (18.23") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 36min of daylight.
On the first day of December in Manari, Brazil, sunrise is at 05:01 and sunset at 17:38. On the last day of the month, sunrise is at 05:14 and sunset at 17:52 -03.

Sunshine

In Manari, the average sunshine in December is 9.3h.

UV index

February, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The daily maximum UV index of 7 in December interprets into the following advice:
Fend off overexposure. Sun protection is vital. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Updated: Feb 3, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

During December, Manari experiences an average high-temperature of 31.9°C (89.4°F) and a low-temperature of 20.3°C (68.5°F). In December, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 37°C (98.6°F).

The average relative humidity in December is 61%.

In December, in Manari, Brazil, the rain falls for 10.2 days. Throughout December, 36mm (1.42") of precipitation is accumulated.

December has the longest days of the year in Manari, Brazil, with an average of 12h and 36min of daylight.

In December, the average day length in Manari is 12h and 38min.

In December, on the first day of the month, sunrise is at 05:01 and sunset at 17:38. On the last day of the month, in Manari, Brazil, sunrise is at 05:14 and sunset at 17:52 -03.

In December, the average sunshine duration in Manari is 9.3h.

February, October through December, with an average maximum UV index of 7, are months with the highest UV index in Manari, Brazil.

In Manari, Brazil, the average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

32.3°C

31.9°C

31°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

17.8km/h

17km/h

15.2km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

19.9

17.1

12.5

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Manari, Brazil

Average high temperature in December: 31.9°C

The warmest month (with the highest average high temperature) is November (32.3°C).
The month with the lowest average high temperature is July (26.2°C).

Average low temperature in December: 20.3°C

The month with the highest average low temperature is March (20.4°C).
The coldest month (with the lowest average low temperature) is August (16.9°C).

Average pressure in December
Manari, Brazil

Average pressure in December: 1011.9mbar

The month with the highest atmospheric pressure is July (1016.9mbar).
The month with the lowest atmospheric pressure is November (1011.7mbar).

Average wind speed in December
Manari, Brazil

Average wind speed in December: 15.9km/h

The windiest month (with the highest average wind speed) is October (17.7km/h).
The calmest month (with the lowest average wind speed) is April (11.9km/h).

Average humidity in December
Manari, Brazil

Average humidity in December: 61%

The months with the highest relative humidity are May, June and July (79%).
The month with the lowest relative humidity is November (60%).

Average rainfall in December
Manari, Brazil

Average rainfall in December: 36mm

The wettest month (with the highest rainfall) is March (106mm).
The driest month (with the least rainfall) is September (5mm).

Average rainfall days in December
Manari, Brazil

Average rainfall days in December: 10.2 days

The month with the highest number of rainy days is April (19.2 days).
The month with the least rainy days is September (6 days).

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

Average daylight in December: 12h and 36min

The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 36min).

Average sunshine in December: 9h and 18min

The month with the most sunshine is November (Average sunshine: 9h and 36min).
The month with the least sunshine is July (Average sunshine: 6h and 30min).

Average sunshine days in December
Manari, Brazil

Average sunshine days in December: 17.1 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is April (8.5 days).

Average UV index in December
Manari, Brazil

Average UV index in December: 7

The months with the highest UV index are February, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 5).

Average cloud cover in December
Manari, Brazil

Average cloud cover in December: 25

The month with the most cloud cover is July (Cloud cover 53).
The month with the least cloud cover is November (Cloud cover 21).

Average visibility in December
Manari, Brazil

Average visibility in December: 10km

The months with the highest visibility are January, February, March, September, October, November and December (10km).
The months with the lowest visibility are April, May, June and July (8km).