December weather forecast
Caiçara do Rio do Vento, Brazil

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Weather in December

The first month of the summer, December, is also a hot month in Caiçara do Rio do Vento, Brazil, with an average temperature varying between 31.1°C (88°F) and 24.8°C (76.6°F).

Temperature

In December, Caiçara do Rio do Vento experiences a minor shift in meteorological conditions with average high-temperatures marked at a still hot 31.1°C (88°F), closely mirroring the climate in November. Caiçara do Rio do Vento in December experiences a low-temperature average of 24.8°C (76.6°F).

Heat index

For December, the heat index is evaluated at a very hot 38°C (100.4°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

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. Throughout the year, there are 184.7 rainfall days, and 414mm (16.3") of precipitation is accumulated.

Daylight

With an average of 12h and 30min of daylight, December has the longest days of the year in Caiçara do Rio do Vento.
On the first day of December in Caiçara do Rio do Vento, 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, Brazil, 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 in Caiçara do Rio do Vento, Brazil. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 7 suggests this advice:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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Frequently asked questions

How hot does it get in Caiçara do Rio do Vento in December?

December temperatures in Caiçara do Rio do Vento vary between a high-temperature of 31.1°C (88°F) and a low-temperature of 24.8°C (76.6°F). In December, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 38°C (100.4°F).

What is the average humidity in December in Caiçara do Rio do Vento?

The average relative humidity in December in Caiçara do Rio do Vento is 70%.

How many days does it rain in December in Caiçara do Rio do Vento?

In Caiçara do Rio do Vento, Brazil, in December, during 17.3 rainfall days, 18mm (0.71") of precipitation is typically accumulated.

When are the longest days in Caiçara do Rio do Vento?

The month with the longest days in Caiçara do Rio do Vento is December, with an average of 12h and 30min of daylight.

How many hours of daylight does Caiçara do Rio do Vento have in December?

In Caiçara do Rio do Vento, Brazil, the average day length in December is 12h and 27min.

When is the sunrise / sunset in December in Caiçara do Rio do Vento?

In December, on the first day of the month, sunrise is at 05:00 and sunset at 17:26. On the last day of the month, in Caiçara do Rio do Vento, sunrise is at 05:13 and sunset at 17:40 -03.

How many hours of sunshine does Caiçara do Rio do Vento have in December?

In Caiçara do Rio do Vento, Brazil, the average sunshine duration in December is 7.8h.

When is the highest UV index in Caiçara do Rio do Vento?

January through June, August through December, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in December in Caiçara do Rio do Vento?

The average daily maximum UV index in December is 7. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.

Average temperature in December
Caiçara do Rio do Vento, Brazil

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).

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Average pressure in December
Caiçara do Rio do Vento, Brazil

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).

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Average wind speed in December
Caiçara do Rio do Vento, Brazil

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).

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Average humidity in December
Caiçara do Rio do Vento, Brazil

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%).

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Average rainfall in December
Caiçara do Rio do Vento, Brazil

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).

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Average rainfall days in December
Caiçara do Rio do Vento, Brazil

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).

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Average daylight in December /
Average sunshine in December
Caiçara do Rio do Vento, Brazil

Average daylight in December / Average sunshine in December - Caiçara do Rio do Vento, Brazil
  • Average daylight in December: 12h and 3min

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 5min

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).

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Average sunshine days in December
Caiçara do Rio do Vento, Brazil

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).

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Average UV index in December
Caiçara do Rio do Vento, Brazil

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).

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Average cloud cover in December
Caiçara do Rio do Vento, Brazil

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).

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Average visibility in December
Caiçara do Rio do Vento, Brazil

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).

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Caiçara do Rio do Vento, Brazil

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