December weather forecastBrejo, Brazil
December
Weather in December
December, the first month of the summer in Brejo, is still a hot month, with an average temperature ranging between max 34.5°C (94.1°F) and min 24°C (75.2°F).Temperature
December's advent notes a subtle adjustment in average high-temperature to a tropical 34.5°C (94.1°F) from November. During the month of December, Brejo experiences a steady low-temperature average of 24°C (75.2°F).Heat index
The heat index in December is calculated to be a blazing hot 47°C (116.6°F). Keep guard: Heat cramps and heat exhaustion are likely. Continued activity increases the risk of heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
The average relative humidity in December in Brejo is 68%.Rainfall
In Brejo, during December, the rain falls for 18.2 days and regularly aggregates up to 78mm (3.07") of precipitation. Throughout the year, there are 221.9 rainfall days, and 1140mm (44.88") of precipitation is accumulated.Daylight
With an average of 12h and 18min of daylight, December has the longest days of the year in Brejo.On the first day of December, sunrise is at 05:30 and sunset at 17:49. On the last day of the month, sunrise is at 05:44 and sunset at 18:04 -03.
Sunshine
In Brejo, Brazil, the average sunshine in December is 8.6h.UV index
The months with the highest UV index are January, April through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 7 during December translates into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Brejo, Brazil
- Average high temperature in December: 34.5°C
The warmest month (with the highest average high temperature) is October (37.5°C).
The month with the lowest average high temperature is April (30.9°C).
- Average low temperature in December: 24°C
The month with the highest average low temperature is November (24.2°C).
The coldest month (with the lowest average low temperature) is July (21.6°C).
Average pressure in December
Brejo, Brazil
- Average pressure in December: 1009.5mbar
The month with the highest atmospheric pressure is July (1012.9mbar).
The month with the lowest atmospheric pressure is November (1008.9mbar).
Average wind speed in December
Brejo, Brazil
- Average wind speed in December: 10.2km/h
The windiest month (with the highest average wind speed) is November (10.9km/h).
The calmest month (with the lowest average wind speed) is May (6km/h).
Average humidity in December
Brejo, Brazil
- Average humidity in December: 68%
The month with the highest relative humidity is April (87%).
The months with the lowest relative humidity are September and October (61%).
Average rainfall in December
Brejo, Brazil
- Average rainfall in December: 78mm
The wettest month (with the highest rainfall) is March (231mm).
The driest month (with the least rainfall) is September (4mm).
Average rainfall days in December
Brejo, Brazil
- Average rainfall days in December: 18.2 days
The month with the highest number of rainy days is March (29.8 days).
The month with the least rainy days is September (4.6 days).
Average daylight in December /
Average sunshine in December
Brejo, Brazil
- Average daylight in December: 12h and 18min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in December: 8h and 36min
The month with the most sunshine is September (Average sunshine: 9h and 42min).
The month with the least sunshine is April (Average sunshine: 6h and 42min).
Average sunshine days in December
Brejo, Brazil
- Average sunshine days in December: 10.9 days
The month with the most sunshine days is September (23.4 days).
The month with the least sunshine days is April (0.8 days).
Average UV index in December
Brejo, Brazil
- Average UV index in December: 7
The months with the highest UV index are January, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are February and March (UV index 6).
Average cloud cover in December
Brejo, Brazil
- Average cloud cover in December: 38
The month with the most cloud cover is March (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 22).
Average visibility in December
Brejo, Brazil
- Average visibility in December: 10km
The months with the highest visibility are September, October, November and December (10km).
The months with the lowest visibility are March, April and May (7km).
