December weather forecastPraça Seca, Brazil

December

Weather in December

The first month of the summer, December, is still a warm month in Praça Seca, Brazil, with an average temperature varying between 29.1°C (84.4°F) and 23°C (73.4°F).

Temperature

December's onset brings an average high-temperature of a still moderately hot 29.1°C (84.4°F), showing a minute difference from November's 26.8°C (80.2°F). December witnesses an average nighttime temperature of 23°C (73.4°F).

Heat index

December's average heat index is appraised at a torrid 35°C (95°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. 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. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In Praça Seca, the average relative humidity in December is 81%.

Rainfall

In Praça Seca, in December, it is raining for 18.1 days, with typically 67mm (2.64") of accumulated precipitation. In Praça Seca, during the entire year, the rain falls for 172 days and collects up to 543mm (21.38") 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 the month, sunrise is at 04:59 and sunset at 18:25. On the last day of December, sunrise is at 05:11 and sunset at 18:42 -03.

Sunshine

The average sunshine in December is 7.9h.

UV index

January and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 7 suggests these recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Updated: Aug 7, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature during December is 29.1°C (84.4°F) and the low-temperature is 23°C (73.4°F). In December, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is appraised at 35°C (95°F).

In December, the average relative humidity is 81%.

In Praça Seca, in December, during 18.1 rainfall days, 67mm (2.64") of precipitation is typically accumulated.

With an average of 13h and 30min of daylight, December has the longest days of the year.

The average day length in December is 13h and 31min.

In December, on the first day of the month, sunrise is at 04:59 and sunset at 18:25. On the last day of the month, sunrise is at 05:11 and sunset at 18:42 -03.

The average sunshine duration in December is 7.9h.

The months with the highest UV index in Praça Seca are January and December, with an average maximum UV index of 7.

In Praça Seca, the average daily maximum UV index in December is 7. A UV Index value of 6 to 7 symbolizes a high health risk 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

26.8°C

29.1°C

30.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

10.8km/h

9.9km/h

9.4km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

9.8

8.4

10.1

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Praça Seca, Brazil

Average high temperature in December: 29.1°C

The warmest month (with the highest average high temperature) is February (30.6°C).
The month with the lowest average high temperature is July (24.5°C).

Average low temperature in December: 23°C

The month with the highest average low temperature is January (23.3°C).
The coldest month (with the lowest average low temperature) is August (18°C).

Average pressure in December
Praça Seca, Brazil

Average pressure in December: 1011.9mbar

The month with the highest atmospheric pressure is July (1020.4mbar).
The month with the lowest atmospheric pressure is December (1011.9mbar).

Average wind speed in December
Praça Seca, Brazil

Average wind speed in December: 8.6km/h

The windiest months (with the highest average wind speed) are August and September (10.2km/h).
The calmest month (with the lowest average wind speed) is March (8km/h).

Average humidity in December
Praça Seca, Brazil

Average humidity in December: 81%

The month with the highest relative humidity is November (82%).
The month with the lowest relative humidity is August (77%).

Average rainfall in December
Praça Seca, Brazil

Average rainfall in December: 67mm

The wettest month (with the highest rainfall) is February (75mm).
The driest months (with the least rainfall) are June and August (23mm).

Average rainfall days in December
Praça Seca, Brazil

Average rainfall days in December: 18.1 days

The month with the highest number of rainy days is March (19.9 days).
The month with the least rainy days is August (9.4 days).

Average daylight in December /
Average sunshine in December
Praça Seca, 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 54min

The month with the most sunshine is February (Average sunshine: 8h and 36min).
The months with the least sunshine are October and November (Average sunshine: 7h and 12min).

Average sunshine days in December
Praça Seca, Brazil

Average sunshine days in December: 8.4 days

The month with the most sunshine days is August (19.2 days).
The month with the least sunshine days is March (8.2 days).

Average UV index in December
Praça Seca, Brazil

Average UV index in December: 7

The months with the highest UV index are January and December (UV index 7).
The months with the lowest UV index are February, March, April, May, June, July, August, September, October and November (UV index 6).

Average cloud cover in December
Praça Seca, Brazil

Average cloud cover in December: 42

The month with the most cloud cover is November (Cloud cover 49).
The month with the least cloud cover is February (Cloud cover 31).

Average visibility in December
Praça Seca, Brazil

Average visibility in December: 9km

The months with the highest visibility are February, May, June and August (10km).
The months with the lowest visibility are January, March, April, July, September, October, November and December (9km).