December weather forecastPenha Circular, Brazil
December
Weather in December
December, the first month of the summer in Penha Circular, is also a moderately hot month, with temperature in the range of an average high of 28.9°C (84°F) and an average low of 21.8°C (71.2°F).Temperature
Penha Circular starts December with an average high-temperature of a still moderately hot 28.9°C (84°F), hinting at a minimal fluctuation from November. Throughout December, an average nighttime temperature of 21.8°C (71.2°F) is experienced.Heat index
The heat index value for December is appraised at a very hot 35°C (95°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Heat index determinations are made taking into account the shade and light air movements. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
In December, the average relative humidity is 81%.Rainfall
In Penha Circular, in December, during 23.8 rainfall days, 84mm (3.31") of precipitation is typically accumulated. Throughout the year, there are 205.4 rainfall days, and 637mm (25.08") of precipitation is accumulated.Daylight
With an average of 13h and 30min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 04:59 and sunset at 18:25. On the last day of December, in Penha Circular, sunrise is at 05:11 and sunset at 18:41 -03.
Sunshine
In December, the average sunshine in Penha Circular is 7.8h.UV index
January and December, with an average maximum UV index of 7, are months with the highest UV index in Penha Circular. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 7 in December leads to these recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Penha Circular, Brazil
- Average high temperature in December: 28.9°C
The warmest month (with the highest average high temperature) is February (30.1°C).
The month with the lowest average high temperature is July (24.1°C).
- Average low temperature in December: 21.8°C
The month with the highest average low temperature is January (22.3°C).
The coldest month (with the lowest average low temperature) is August (16.9°C).
Average pressure in December
Penha Circular, Brazil
- Average pressure in December: 1012mbar
The month with the highest atmospheric pressure is July (1020.5mbar).
The month with the lowest atmospheric pressure is December (1012mbar).
Average wind speed in December
Penha Circular, Brazil
- Average wind speed in December: 7.3km/h
The windiest month (with the highest average wind speed) is September (8.6km/h).
The calmest month (with the lowest average wind speed) is March (6.7km/h).
Average humidity in December
Penha Circular, Brazil
- Average humidity in December: 81%
The months with the highest relative humidity are March, April, May and November (82%).
The month with the lowest relative humidity is August (77%).
Average rainfall in December
Penha Circular, Brazil
- Average rainfall in December: 84mm
The wettest month (with the highest rainfall) is January (94mm).
The driest month (with the least rainfall) is June (24mm).
Average rainfall days in December
Penha Circular, Brazil
- Average rainfall days in December: 23.8 days
The month with the highest number of rainy days is December (23.8 days).
The month with the least rainy days is August (10.2 days).
Average daylight in December /
Average sunshine in December
Penha Circular, 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 48min
The month with the most sunshine is February (Average sunshine: 8h and 42min).
The month with the least sunshine is November (Average sunshine: 7h and 12min).
Average sunshine days in December
Penha Circular, Brazil
- Average sunshine days in December: 4.9 days
The month with the most sunshine days is August (18.8 days).
The month with the least sunshine days is December (4.9 days).
Average UV index in December
Penha Circular, 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 April, May, July and September (UV index 5).
Average cloud cover in December
Penha Circular, Brazil
- Average cloud cover in December: 43
The month with the most cloud cover is November (Cloud cover 50).
The months with the least cloud cover are February, July and August (Cloud cover 31).
Average visibility in December
Penha Circular, Brazil
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
