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
Weather in December
Temperature
December's onset brings an average high-temperature of a still moderately hot 28.5°C (83.3°F), showing a minute difference from November's 27.1°C (80.8°F). An average low-temperature of 20.3°C (68.5°F) marks the nights throughout December.Heat index
The heat index value during December is evaluated at a tropical 34°C (93.2°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Know that the heat index computations account for shaded terrains and slight winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Humidity
In December, the average relative humidity is 85%.Rainfall
In December, the rain falls for 23.6 days. Throughout December, 135mm (5.31") of precipitation is accumulated. In Alegre, during the entire year, the rain falls for 207.5 days and collects up to 823mm (32.4") of precipitation.Daylight
December has the longest days of the year in Alegre, with an average of 13h and 24min of daylight.On the first day of December in Alegre, sunrise is at 04:56 and sunset at 18:14. On the last day of the month, sunrise is at 05:08 and sunset at 18:30 -03.
Sunshine
The average sunshine in December in Alegre is 8.2h.UV index
January through March, August, October and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 6 translates into these guidelines:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
Is it hot in Alegre during December?
What is the average humidity in December in Alegre?
How many days does it rain in December in Alegre?
When are the longest days in Alegre?
How many hours of daylight does Alegre have in December?
When are sunrise and sunset in December in Alegre?
How long on average sun shines in December in Alegre?
What is the month with the highest UV index in Alegre?
How high is the UV index in December in Alegre?
Average temperature in December
Alegre, Brazil
- Average high temperature in December: 28.5°C
The warmest month (with the highest average high temperature) is February (30.1°C).
The months with the lowest average high temperature are June and July (24.6°C).
- Average low temperature in December: 20.3°C
The months with the highest average low temperature are January, February and December (20.3°C).
The coldest month (with the lowest average low temperature) is July (15.3°C).
Average pressure in December
Alegre, Brazil
- Average pressure in December: 1012.6mbar
The month with the highest atmospheric pressure is July (1020.9mbar).
The month with the lowest atmospheric pressure is December (1012.6mbar).
Average wind speed in December
Alegre, Brazil
- Average wind speed in December: 7km/h
The windiest month (with the highest average wind speed) is September (8.6km/h).
The calmest months (with the lowest average wind speed) are April and May (5.8km/h).
Average humidity in December
Alegre, Brazil
- Average humidity in December: 85%
The months with the highest relative humidity are April and May (86%).
The month with the lowest relative humidity is September (76%).
Average rainfall in December
Alegre, Brazil
- Average rainfall in December: 135mm
The wettest month (with the highest rainfall) is November (137mm).
The driest months (with the least rainfall) are July and August (18mm).
Average rainfall days in December
Alegre, Brazil
- Average rainfall days in December: 23.6 days
The month with the highest number of rainy days is March (24.2 days).
The month with the least rainy days is July (10.3 days).
Average daylight in December /
Average sunshine in December
Alegre, Brazil
- Average daylight in December: 13h and 2min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in December: 8h and 1min
The month with the most sunshine is February (Average sunshine: 8h and 48min).
The month with the least sunshine is October (Average sunshine: 7h and 6min).
Average sunshine days in December
Alegre, Brazil
- Average sunshine days in December: 3.9 days
The month with the most sunshine days is August (18.3 days).
The month with the least sunshine days is December (3.9 days).
Average UV index in December
Alegre, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, February, March, August, October and December (UV index 6).
The months with the lowest UV index are April, May, June, July, September and November (UV index 5).
Average cloud cover in December
Alegre, Brazil
- Average cloud cover in December: 47
The month with the most cloud cover is November (Cloud cover 54).
The months with the least cloud cover are January and February (Cloud cover 33).
Average visibility in December
Alegre, Brazil
- Average visibility in December: 8km
The months with the highest visibility are August, September and October (9km).
The months with the lowest visibility are April and May (7km).
Alegre, Brazil
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