December weather forecastCaiçara do Rio do Vento, Brazil
December
Weather in December
The first month of the summer, December, is still a hot month in Caiçara do Rio do Vento, Brazil, 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 reports an average high-temperature of a still hot 31.1°C (88°F), slightly varied from November's 30.7°C (87.3°F). In Caiçara do Rio do Vento, the December nights cool down to an average low of 24.8°C (76.6°F).Heat index
For most parts of December, the heat index is calculated to be a torrid 38°C (100.4°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.
Humidity
In Caiçara do Rio do Vento, Brazil, the average relative humidity in December is 70%.Rainfall
In Caiçara do Rio do Vento, in December, during 17.3 rainfall days, 18mm (0.71") of precipitation is typically accumulated. In Caiçara do Rio do Vento, during the entire year, the rain falls for 184.7 days and collects up to 414mm (16.3") of precipitation.Daylight
December has the longest days of the year, with an average of 12h and 30min of daylight.On the first day of December, sunrise is at 05:00 and sunset at 17:26. On the last day of the month, sunrise is at 05:13 and sunset at 17:40 -03.
Sunshine
In Caiçara do Rio do Vento, the average sunshine in December 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 estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index, 7 in December, converts into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Caiçara do Rio do Vento, 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
Caiçara do Rio do Vento, 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
Caiçara do Rio do Vento, 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
Caiçara do Rio do Vento, 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
Caiçara do Rio do Vento, 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
Caiçara do Rio do Vento, 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
Caiçara do Rio do Vento, 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
Caiçara do Rio do Vento, 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
Caiçara do Rio do Vento, 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
Caiçara do Rio do Vento, 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
Caiçara do Rio do Vento, 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).
