December weather forecastPiancó, Brazil
December
Weather in December
December, the first month of the summer in Piancó, is also a hot month, with an average temperature ranging between max 34.6°C (94.3°F) and min 23.6°C (74.5°F).Temperature
As Piancó welcomes December, the average high-temperature is noted at a tropical 34.6°C (94.3°F), closely aligning with the preceding month. The average temperature drops to a warm 23.6°C (74.5°F) during the night in the month of December.Heat index
Throughout December, the heat index is estimated at a scorching 40°C (104°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.In reference to the heat index, it's for places in shade and with a slight wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular significance for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
In December, the average relative humidity is 51%.Rainfall
In Piancó, Brazil, in December, during 10.8 rainfall days, 31mm (1.22") of precipitation is typically accumulated. In Piancó, Brazil, during the entire year, the rain falls for 148.4 days and collects up to 508mm (20") of precipitation.Daylight
The month with the longest days is December, with an average of 12h and 30min of daylight.On the first day of the month, sunrise is at 05:05 and sunset at 17:36. On the last day of December, sunrise is at 05:18 and sunset at 17:51 -03.
Sunshine
In December, the average sunshine in Piancó is 9.3h.UV index
January through March, August 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 threat to health from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 7 in December suggests the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Piancó, Brazil
- Average high temperature in December: 34.6°C
The warmest month (with the highest average high temperature) is November (35.5°C).
The months with the lowest average high temperature are June and July (31.3°C).
- Average low temperature in December: 23.6°C
The months with the highest average low temperature are November and December (23.6°C).
The coldest month (with the lowest average low temperature) is July (19.8°C).
Average pressure in December
Piancó, Brazil
- Average pressure in December: 1011mbar
The month with the highest atmospheric pressure is July (1015.5mbar).
The month with the lowest atmospheric pressure is November (1010.7mbar).
Average wind speed in December
Piancó, Brazil
- Average wind speed in December: 16.2km/h
The windiest month (with the highest average wind speed) is October (18km/h).
The calmest month (with the lowest average wind speed) is April (9.9km/h).
Average humidity in December
Piancó, Brazil
- Average humidity in December: 51%
The months with the highest relative humidity are April and May (71%).
The month with the lowest relative humidity is November (48%).
Average rainfall in December
Piancó, Brazil
- Average rainfall in December: 31mm
The wettest month (with the highest rainfall) is March (100mm).
The driest month (with the least rainfall) is September (1mm).
Average rainfall days in December
Piancó, Brazil
- Average rainfall days in December: 10.8 days
The months with the highest number of rainy days are March and April (22.7 days).
The month with the least rainy days is September (1.5 days).
Average daylight in December /
Average sunshine in December
Piancó, Brazil
- Average daylight in December: 12h and 30min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 42min).
- Average sunshine in December: 9h and 18min
The month with the most sunshine is September (Average sunshine: 9h and 54min).
The month with the least sunshine is March (Average sunshine: 8h and 42min).
Average sunshine days in December
Piancó, Brazil
- Average sunshine days in December: 18 days
The month with the most sunshine days is September (27.8 days).
The month with the least sunshine days is April (6.7 days).
Average UV index in December
Piancó, Brazil
- Average UV index in December: 7
The months with the highest UV index are January, February, March, August, September, October, November and December (UV index 7).
The months with the lowest UV index are April, May, June and July (UV index 6).
Average cloud cover in December
Piancó, Brazil
- Average cloud cover in December: 27
The months with the most cloud cover are March and April (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 14).
Average visibility in December
Piancó, Brazil
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are April and May (9km).





