December weather forecastJaicós, Brazil
December
Weather in December
December, the first month of the summer in Jaicós, is also a hot month, with temperature in the range of an average high of 33.6°C (92.5°F) and an average low of 23.7°C (74.7°F).Temperature
December's advent denotes a minor fluctuation in the average high-temperature to a tropical 33.6°C (92.5°F) from November's 35°C (95°F). During December, Jaicós experiences an average low-temperature of 23.7°C (74.7°F) at night.Heat index
The heat index value during December is evaluated at a blisteringly hot 40°C (104°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.In the scope of the heat index, its values resonate with shade and light wind conditions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
The average relative humidity in December is 56%.Rainfall
In Jaicós, Brazil, in December, during 17.6 rainfall days, 78mm (3.07") of precipitation is typically accumulated. In Jaicós, Brazil, during the entire year, the rain falls for 152.5 days and collects up to 872mm (34.33") 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 05:18 and sunset at 17:49. On the last day of the month, sunrise is at 05:31 and sunset at 18:04 -03.
Sunshine
In December, the average sunshine in Jaicós is 9h.UV index
In December, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 7 during December leads to these instructions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Jaicós, Brazil
- Average high temperature in December: 33.6°C
The warmest month (with the highest average high temperature) is October (36°C).
The months with the lowest average high temperature are March and April (31.3°C).
- Average low temperature in December: 23.7°C
The month with the highest average low temperature is November (24.9°C).
The coldest month (with the lowest average low temperature) is July (19.8°C).
Average pressure in December
Jaicós, Brazil
- Average pressure in December: 1010.2mbar
The month with the highest atmospheric pressure is July (1014.8mbar).
The month with the lowest atmospheric pressure is November (1009.5mbar).
Average wind speed in December
Jaicós, Brazil
- Average wind speed in December: 10.3km/h
The windiest month (with the highest average wind speed) is July (16.9km/h).
The calmest month (with the lowest average wind speed) is March (8.1km/h).
Average humidity in December
Jaicós, Brazil
- Average humidity in December: 56%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (42%).
Average rainfall in December
Jaicós, Brazil
- Average rainfall in December: 78mm
The wettest month (with the highest rainfall) is March (200mm).
The driest month (with the least rainfall) is August (0mm).
Average rainfall days in December
Jaicós, Brazil
- Average rainfall days in December: 17.6 days
The month with the highest number of rainy days is March (26.8 days).
The month with the least rainy days is August (0.3 days).
Average daylight in December /
Average sunshine in December
Jaicós, 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 42min).
- Average sunshine in December: 9h and 0min
The months with the most sunshine are August and September (Average sunshine: 9h and 54min).
The month with the least sunshine is April (Average sunshine: 7h and 36min).
Average sunshine days in December
Jaicós, Brazil
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is August (30.5 days).
The month with the least sunshine days is March (3.3 days).
Average UV index in December
Jaicós, Brazil
- Average UV index in December: 7
The months with the highest UV index are September and October (UV index 8).
The months with the lowest UV index are February and April (UV index 6).
Average cloud cover in December
Jaicós, Brazil
- Average cloud cover in December: 38
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in December
Jaicós, Brazil
- Average visibility in December: 10km
The months with the highest visibility are May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March and April (9km).





