December weather forecastVarre-Sai, Brazil

December

Weather in December

December, the first month of the summer in Varre-Sai, is still a warm month, with an average temperature varying between 28.7°C (83.7°F) and 19.9°C (67.8°F).

Temperature

As Varre-Sai welcomes December, the average high-temperature records at a still moderately hot 28.7°C (83.7°F), marking an insignificant deviation from the prior month. During December, the average low-temperature in Varre-Sai is an enjoyable 19.9°C (67.8°F).

Heat index

December's mean heat index is evaluated at a sweltering 35°C (95°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In Varre-Sai, the average relative humidity in December is 86%.

Rainfall

The month with the most rainfall is December, when the rain falls for 26.4 days and typically aggregates up to 207mm (8.15") of precipitation.

Daylight

The month with the longest days is December, with an average of 13h and 24min of daylight.
On the first day of the month, sunrise is at 04:57 and sunset at 18:16. On the last day of December, sunrise is at 05:09 and sunset at 18:32 -03.

Sunshine

In Varre-Sai, the average sunshine in December is 7.8h.

UV index

January, February, August, September and December, with an average maximum UV index of 6, are months with the highest UV index in Varre-Sai. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 6 during December translates into these guidelines:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.

Updated: Aug 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Varre-Sai in December has an average high-temperature of 28.7°C (83.7°F) and an average low-temperature of 19.9°C (67.8°F). The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in December is evaluated at 35°C (95°F).

In Varre-Sai, the average relative humidity in December is 86%.

December is the month with the most rainfall. Rain falls for 26.4 days and accumulates 207mm (8.15") of precipitation.

In Varre-Sai, in December, during 26.4 rainfall days, 207mm (8.15") of precipitation is typically accumulated.

The month with the longest days is December, with an average of 13h and 24min of daylight.

In Varre-Sai, the average day length in December is 13h and 23min.

On the first day of December, sunrise is at 04:57 and sunset at 18:16. On the last day of the month, sunrise is at 05:09 and sunset at 18:32 -03.

In Varre-Sai, the average sunshine duration in December is 7.8h.

January, February, August, September and December, with an average maximum UV index of 6, are months with the highest UV index.

In Varre-Sai, 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.

Today

Tomorrow

Long-term

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

Nov

December

Jan

Average high temperature

27.6°C

28.7°C

29.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.2km/h

6.3km/h

6.1km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

3.7

3.5

7.8

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Varre-Sai, Brazil

Average high temperature in December: 28.7°C

The warmest month (with the highest average high temperature) is February (29.9°C).
The month with the lowest average high temperature is June (24.6°C).

Average low temperature in December: 19.9°C

The month with the highest average low temperature is January (20.1°C).
The coldest months (with the lowest average low temperature) are June and July (14.9°C).

Average pressure in December
Varre-Sai, Brazil

Average pressure in December: 1012.6mbar

The month with the highest atmospheric pressure is July (1021mbar).
The month with the lowest atmospheric pressure is December (1012.6mbar).

Average wind speed in December
Varre-Sai, Brazil

Average wind speed in December: 5.5km/h

The windiest months (with the highest average wind speed) are September and October (6.6km/h).
The calmest month (with the lowest average wind speed) is April (4.6km/h).

Average humidity in December
Varre-Sai, Brazil

Average humidity in December: 86%

The month with the highest relative humidity is April (88%).
The month with the lowest relative humidity is September (72%).

Average rainfall in December
Varre-Sai, Brazil

Average rainfall in December: 207mm

The wettest month (with the highest rainfall) is December (207mm).
The driest month (with the least rainfall) is July (10mm).

Average rainfall days in December
Varre-Sai, Brazil

Average rainfall days in December: 26.4 days

The month with the highest number of rainy days is December (26.4 days).
The month with the least rainy days is July (7.2 days).

Average daylight in December /
Average sunshine in December
Varre-Sai, Brazil

Average daylight in December: 13h and 24min

The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).

Average sunshine in December: 7h and 48min

The month with the most sunshine is February (Average sunshine: 8h and 36min).
The month with the least sunshine is October (Average sunshine: 7h and 6min).

Average sunshine days in December
Varre-Sai, Brazil

Average sunshine days in December: 3.5 days

The month with the most sunshine days is July (21.6 days).
The month with the least sunshine days is December (3.5 days).

Average UV index in December
Varre-Sai, Brazil

Average UV index in December: 6

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

Average cloud cover in December
Varre-Sai, Brazil

Average cloud cover in December: 54

The month with the most cloud cover is November (Cloud cover 60).
The months with the least cloud cover are July, August and September (Cloud cover 36).