Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
The start of December sees the average high-temperature at a tropical 34.9°C (94.8°F), showing little difference from November's 35.5°C (95.9°F). The nighttime temperature, during December, averages of 24.4°C (75.9°F).Heat index
For December, the heat index is appraised at a blisteringly hot 41°C (105.8°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant 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 process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
In Serra Negra do Norte, the average relative humidity in December is 52%.Rainfall
In Serra Negra do Norte, Brazil, during December, the rain falls for 7.2 days and regularly aggregates up to 15mm (0.59") of precipitation. In Serra Negra do Norte, during the entire year, the rain falls for 122.6 days and collects up to 442mm (17.4") 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 December, sunrise is at 05:04 and sunset at 17:33. On the last day of the month, sunrise is at 05:17 and sunset at 17:47 -03.
Sunshine
In December, the average sunshine is 9.2h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 7 during December leads to these instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in December?
What is the average humidity in December?
How much does it rain in December?
When are the longest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Serra Negra do Norte have in December?
When is the highest UV index?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Serra Negra do Norte, Brazil
- Average high temperature in December: 34.9°C
The warmest month (with the highest average high temperature) is November (35.5°C).
The month with the lowest average high temperature is July (31.8°C).
- Average low temperature in December: 24.4°C
The month with the highest average low temperature is December (24.4°C).
The coldest months (with the lowest average low temperature) are July and August (21.3°C).
Average pressure in December
Serra Negra do Norte, Brazil
- Average pressure in December: 1011.1mbar
The month with the highest atmospheric pressure is July (1015.3mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).
Average wind speed in December
Serra Negra do Norte, Brazil
- Average wind speed in December: 19.8km/h
The windiest month (with the highest average wind speed) is September (24.2km/h).
The calmest month (with the lowest average wind speed) is March (13km/h).
Average humidity in December
Serra Negra do Norte, Brazil
- Average humidity in December: 52%
The months with the highest relative humidity are April and May (70%).
The month with the lowest relative humidity is November (50%).
Average rainfall in December
Serra Negra do Norte, Brazil
- Average rainfall in December: 15mm
The wettest month (with the highest rainfall) is March (106mm).
The driest months (with the least rainfall) are August and September (1mm).
Average rainfall days in December
Serra Negra do Norte, Brazil
- Average rainfall days in December: 7.2 days
The month with the highest number of rainy days is April (21.5 days).
The month with the least rainy days is September (0.9 days).
Average daylight in December /
Average sunshine in December
Serra Negra do Norte, Brazil
- Average daylight in December: 12h and 3min
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 1min
The month with the most sunshine is September (Average sunshine: 9h and 48min).
The month with the least sunshine is March (Average sunshine: 8h and 36min).
Average sunshine days in December
Serra Negra do Norte, Brazil
- Average sunshine days in December: 22.3 days
The month with the most sunshine days is September (29.2 days).
The month with the least sunshine days is April (7.2 days).
Average UV index in December
Serra Negra do Norte, Brazil
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in December
Serra Negra do Norte, Brazil
- Average cloud cover in December: 25
The month with the most cloud cover is April (Cloud cover 37).
The month with the least cloud cover is September (Cloud cover 13).
Average visibility in December
Serra Negra do Norte, Brazil
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is April (9km).
