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 denotes an average high-temperature of a still warm 27.5°C (81.5°F), subtly different from November's 25.8°C (78.4°F). Nighttime temperature lowers to an average of 22.2°C (72°F) in December.Heat index
In December, the average heat index is calculated to be a tropical 31°C (87.8°F). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.Always consider that heat index estimations are for light winds and places in the shade. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance 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.
Humidity
November and December, with an average relative humidity of 84%, are the most humid months.Rainfall
In Conceição de Macabu, in December, it is raining for 19.9 days, with typically 100mm (3.94") of accumulated precipitation. Throughout the year, there are 179.7 rainfall days, and 674mm (26.54") of precipitation is accumulated.Daylight
December has the longest days of the year, with an average of 13h and 30min of daylight.On the first day of December, sunrise is at 04:55 and sunset at 18:18. On the last day of the month, sunrise is at 05:06 and sunset at 18:34 -03.
Sunshine
In December, the average sunshine is 8.8h.UV index
The average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index, 6 in December, converts into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
When are the longest days?
How many hours of daylight does Conceição de Macabu have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Conceição de Macabu have in December?
How high is the UV index in December?
Average temperature in December
Conceição de Macabu, Brazil
- Average high temperature in December: 27.5°C
The warmest month (with the highest average high temperature) is February (29.1°C).
The month with the lowest average high temperature is June (24.1°C).
- Average low temperature in December: 22.2°C
The month with the highest average low temperature is January (23.1°C).
The coldest month (with the lowest average low temperature) is August (18.3°C).
Average pressure in December
Conceição de Macabu, Brazil
- Average pressure in December: 1012mbar
The month with the highest atmospheric pressure is July (1020.7mbar).
The month with the lowest atmospheric pressure is December (1012mbar).
Average wind speed in December
Conceição de Macabu, Brazil
- Average wind speed in December: 12.9km/h
The windiest month (with the highest average wind speed) is September (15.8km/h).
The calmest month (with the lowest average wind speed) is March (10.9km/h).
Average humidity in December
Conceição de Macabu, Brazil
- Average humidity in December: 84%
The months with the highest relative humidity are November and December (84%).
The months with the lowest relative humidity are August and September (78%).
Average rainfall in December
Conceição de Macabu, Brazil
- Average rainfall in December: 100mm
The wettest month (with the highest rainfall) is November (108mm).
The driest month (with the least rainfall) is June (18mm).
Average rainfall days in December
Conceição de Macabu, Brazil
- Average rainfall days in December: 19.9 days
The month with the highest number of rainy days is March (21.7 days).
The month with the least rainy days is August (8.9 days).
Average daylight in December /
Average sunshine in December
Conceição de Macabu, Brazil
- Average daylight in December: 13h and 3min
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: 8h and 5min
The month with the most sunshine is February (Average sunshine: 9h and 0min).
The month with the least sunshine is October (Average sunshine: 7h and 36min).
Average sunshine days in December
Conceição de Macabu, Brazil
- Average sunshine days in December: 5.8 days
The month with the most sunshine days is August (19.5 days).
The months with the least sunshine days are March and December (5.8 days).
Average UV index in December
Conceição de Macabu, Brazil
- Average UV index in December: 6
The month with the highest UV index is January (UV index 7).
The months with the lowest UV index are July and September (UV index 5).
Average cloud cover in December
Conceição de Macabu, Brazil
- Average cloud cover in December: 40
The month with the most cloud cover is November (Cloud cover 48).
The months with the least cloud cover are February, June and July (Cloud cover 27).
Average visibility in December
Conceição de Macabu, Brazil
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
