December weather forecastFrecheirinha, Brazil
December
Weather in December
December, the first month of the summer in Frecheirinha, is still a tropical month, with an average temperature varying between 21.8°C (71.2°F) and 32°C (89.6°F).Temperature
The commencement of December notes an average high-temperature of a still hot 32°C (89.6°F), exhibiting little difference from the previous month. Nightly temperatures drop to an average low of 21.8°C (71.2°F) in December.Heat index
During December, the heat index is calculated to be a very hot 39°C (102.2°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
The average relative humidity in December is 67%.Rainfall
In Frecheirinha, during December, the rain falls for 16.5 days and regularly aggregates up to 64mm (2.52") of precipitation. Throughout the year, in Frecheirinha, there are 197.8 rainfall days, and 1036mm (40.79") of precipitation is accumulated.Daylight
With an average of 12h and 18min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 05:22 and sunset at 17:42. On the last day of December, sunrise is at 05:36 and sunset at 17:56 -03.
Sunshine
In December, the average sunshine in Frecheirinha is 8.2h.UV index
The months with the highest UV index in Frecheirinha are August through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 7 during December, leads to the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight 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
Frecheirinha, Brazil
- Average high temperature in December: 32°C
The warmest month (with the highest average high temperature) is October (34.3°C).
The month with the lowest average high temperature is April (28.9°C).
- Average low temperature in December: 21.8°C
The month with the highest average low temperature is November (21.9°C).
The coldest month (with the lowest average low temperature) is July (19.5°C).
Average pressure in December
Frecheirinha, Brazil
- Average pressure in December: 1010.1mbar
The month with the highest atmospheric pressure is July (1013.5mbar).
The month with the lowest atmospheric pressure is November (1009.6mbar).
Average wind speed in December
Frecheirinha, Brazil
- Average wind speed in December: 16.1km/h
The windiest month (with the highest average wind speed) is October (17.5km/h).
The calmest month (with the lowest average wind speed) is April (9.9km/h).
Average humidity in December
Frecheirinha, Brazil
- Average humidity in December: 67%
The month with the highest relative humidity is April (86%).
The month with the lowest relative humidity is September (59%).
Average rainfall in December
Frecheirinha, Brazil
- Average rainfall in December: 64mm
The wettest month (with the highest rainfall) is March (237mm).
The driest month (with the least rainfall) is September (3mm).
Average rainfall days in December
Frecheirinha, Brazil
- Average rainfall days in December: 16.5 days
The month with the highest number of rainy days is March (29.5 days).
The month with the least rainy days is September (3.4 days).
Average daylight in December /
Average sunshine in December
Frecheirinha, 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 12min
The month with the most sunshine is September (Average sunshine: 9h and 36min).
The month with the least sunshine is March (Average sunshine: 6h and 24min).
Average sunshine days in December
Frecheirinha, Brazil
- Average sunshine days in December: 11.8 days
The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is March (0.8 days).
Average UV index in December
Frecheirinha, Brazil
- Average UV index in December: 7
The months with the highest UV index are August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June and July (UV index 6).
Average cloud cover in December
Frecheirinha, Brazil
- Average cloud cover in December: 36
The month with the most cloud cover is March (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 18).
Average visibility in December
Frecheirinha, Brazil
- Average visibility in December: 10km
The months with the highest visibility are August, September, October, November and December (10km).
The month with the lowest visibility is April (6km).
