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 advent of December presents an average high-temperature of a hot 34.6°C (94.3°F), maintaining a close correlation with the preceding month. Throughout the month of December, Brejo dos Santos sees a steady low-temperature average of 23.6°C (74.5°F).Heat index
The heat index value during December is evaluated at a blisteringly hot 40°C (104°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.Know that the heat index computations account for shaded terrains and slight winds. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
In December, the average relative humidity is 51%.Rainfall
In Brejo dos Santos, in December, during 10.8 rainfall days, 31mm (1.22") of precipitation is typically accumulated. In Brejo dos Santos, during the entire year, the rain falls for 148.4 days and collects up to 508mm (20") of precipitation.Daylight
With an average of 12h and 30min of daylight, December has the longest days of the year.On the first day of December, sunrise is at 05:06 and sunset at 17:34. On the last day of the month, sunrise is at 05:19 and sunset at 17:49 -03.
Sunshine
In December, the average sunshine in Brejo dos Santos 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 of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high UV index of 7 in December translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Brejo dos Santos in December?
What is the average humidity in December in Brejo dos Santos?
How many days does it rain in December in Brejo dos Santos?
When are the longest days in Brejo dos Santos?
How many hours of daylight does Brejo dos Santos have in December?
When are sunrise and sunset in December in Brejo dos Santos?
How long on average sun shines in December in Brejo dos Santos?
What are the months with the highest UV index in Brejo dos Santos?
How high is the UV index in December in Brejo dos Santos?
Average temperature in December
Brejo dos Santos, 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
Brejo dos Santos, 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
Brejo dos Santos, 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
Brejo dos Santos, 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
Brejo dos Santos, 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
Brejo dos Santos, 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
Brejo dos Santos, 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 48min).
- Average sunshine in December: 9h and 2min
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
Brejo dos Santos, 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
Brejo dos Santos, 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
Brejo dos Santos, 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
Brejo dos Santos, 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).
