December weather forecastMacaíba, Brazil
December
Weather in December
December, the first month of the summer in Macaíba, is still a tropical month, with temperature in the range of an average low of 24.8°C (76.6°F) and an average high of 31.1°C (88°F).Temperature
December brings an average high-temperature of a still tropical 31.1°C (88°F), nearly identical to the preceding month. In Macaíba, December is marked by an average low-temperature of 24.8°C (76.6°F).Heat index
Throughout December, the heat index is evaluated at a sweltering 38°C (100.4°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.It is emphasized that the heat index's values are meant for shaded zones with mild winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
In Macaíba, the average relative humidity in December is 70%.Rainfall
In Macaíba, in December, during 17.3 rainfall days, 18mm (0.71") of precipitation is typically accumulated. In Macaíba, Brazil, during the entire year, the rain falls for 184.7 days and collects up to 414mm (16.3") 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 04:57 and sunset at 17:23. On the last day of December, sunrise is at 05:10 and sunset at 17:38 -03.
Sunshine
In December, the average sunshine is 7.8h.UV index
January through June, 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 vulnerability from unsafe exposure to UV radiation for the average person.Note: The UV index of 7 during December translates into the following guidance:
Resist extreme sun exposure. Guarding against solar damage is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Macaíba, Brazil
- Average high temperature in December: 31.1°C
The warmest month (with the highest average high temperature) is March (31.7°C).
The month with the lowest average high temperature is July (28.7°C).
- Average low temperature in December: 24.8°C
The months with the highest average low temperature are February and March (25.2°C).
The coldest month (with the lowest average low temperature) is August (22.1°C).
Average pressure in December
Macaíba, Brazil
- Average pressure in December: 1011.3mbar
The month with the highest atmospheric pressure is August (1014.9mbar).
The month with the lowest atmospheric pressure is February (1011.1mbar).
Average wind speed in December
Macaíba, Brazil
- Average wind speed in December: 20.4km/h
The windiest month (with the highest average wind speed) is September (23.2km/h).
The calmest month (with the lowest average wind speed) is April (16km/h).
Average humidity in December
Macaíba, Brazil
- Average humidity in December: 70%
The months with the highest relative humidity are May, June and July (79%).
The month with the lowest relative humidity is November (69%).
Average rainfall in December
Macaíba, Brazil
- Average rainfall in December: 18mm
The wettest month (with the highest rainfall) is March (86mm).
The driest month (with the least rainfall) is September (5mm).
Average rainfall days in December
Macaíba, Brazil
- Average rainfall days in December: 17.3 days
The month with the highest number of rainy days is March (21.7 days).
The month with the least rainy days is September (7.6 days).
Average daylight in December /
Average sunshine in December
Macaíba, 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 48min).
- Average sunshine in December: 7h and 48min
The months with the most sunshine are October and November (Average sunshine: 8h and 0min).
The month with the least sunshine is July (Average sunshine: 6h and 30min).
Average sunshine days in December
Macaíba, Brazil
- Average sunshine days in December: 5.5 days
The month with the most sunshine days is September (18.2 days).
The month with the least sunshine days is February (3.5 days).
Average UV index in December
Macaíba, Brazil
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, August, September, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 6).
Average cloud cover in December
Macaíba, Brazil
- Average cloud cover in December: 42
The month with the most cloud cover is July (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 38).
Average visibility in December
Macaíba, Brazil
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
