December weather forecastAçu, Brazil
December
Weather in December
December, the first month of the summer in Açu, is still a very hot month, with an average temperature fluctuating between 35°C (95°F) and 24.2°C (75.6°F).Temperature
As Açu welcomes December, the average high-temperature stabilizes at a still torrid 35°C (95°F), showing little deviation from November's 35.5°C (95.9°F). Açu's nights in December experience an average temperature drop to a moderately hot 24.2°C (75.6°F).Heat index
The heat index in December is appraised at a blisteringly hot 44°C (111.2°F). Be prepared: Heat cramps and heat exhaustion are probable. Continued activity may lead to heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular importance for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
In Açu, Brazil, the average relative humidity in December is 57%.Rainfall
In Açu, during December, the rain falls for 4.3 days and regularly aggregates up to 10mm (0.39") of precipitation. In Açu, during the entire year, the rain falls for 112.4 days and collects up to 381mm (15") of precipitation.Daylight
December has the longest days of the year in Açu, Brazil, with an average of 12h and 24min of daylight.On the first day of December in Açu, sunrise is at 05:04 and sunset at 17:29. On the last day of the month, sunrise is at 05:17 and sunset at 17:44 -03.
Sunshine
In Açu, the average sunshine in December is 8.9h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Açu. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 7 in December transforms into the following instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Açu, Brazil
- Average high temperature in December: 35°C
The warmest month (with the highest average high temperature) is October (35.7°C).
The month with the lowest average high temperature is July (32°C).
- Average low temperature in December: 24.2°C
The month with the highest average low temperature is January (24.6°C).
The coldest months (with the lowest average low temperature) are July and August (21.7°C).
Average pressure in December
Açu, Brazil
- Average pressure in December: 1010.9mbar
The month with the highest atmospheric pressure is July (1014.6mbar).
The month with the lowest atmospheric pressure is November (1010.7mbar).
Average wind speed in December
Açu, Brazil
- Average wind speed in December: 19km/h
The windiest months (with the highest average wind speed) are September and October (20.5km/h).
The calmest month (with the lowest average wind speed) is April (12.3km/h).
Average humidity in December
Açu, Brazil
- Average humidity in December: 57%
The month with the highest relative humidity is April (73%).
The months with the lowest relative humidity are September and October (55%).
Average rainfall in December
Açu, Brazil
- Average rainfall in December: 10mm
The wettest month (with the highest rainfall) is March (92mm).
The driest months (with the least rainfall) are October and November (1mm).
Average rainfall days in December
Açu, Brazil
- Average rainfall days in December: 4.3 days
The month with the highest number of rainy days is April (17.2 days).
The month with the least rainy days is November (1.4 days).
Average daylight in December /
Average sunshine in December
Açu, Brazil
- Average daylight in December: 12h and 24min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in December: 8h and 54min
The month with the most sunshine is September (Average sunshine: 9h and 36min).
The month with the least sunshine is March (Average sunshine: 8h and 18min).
Average sunshine days in December
Açu, Brazil
- Average sunshine days in December: 25.2 days
The month with the most sunshine days is October (28.5 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in December
Açu, Brazil
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in December
Açu, Brazil
- Average cloud cover in December: 27
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 16).
Average visibility in December
Açu, 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).
