December weather forecast
Itaguaru, Brazil

December

Weather in December

December, the first month of the summer in Itaguaru, is still a warm month, with an average temperature ranging between max 27.6°C (81.7°F) and min 19.4°C (66.9°F).

Temperature

A minimal variation is noted in Itaguaru's average high-temperature at the onset of December, reaching a still warm 27.6°C (81.7°F) from November's 28.3°C (82.9°F). An average low-temperature of 19.4°C (66.9°F) marks the nights throughout December.

Heat index

In December, the heat index is estimated at a hot 32°C (89.6°F). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.
Note that heat index values are valued for light wind and location in the shade. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

In Itaguaru, the average relative humidity in December is 87%.

Rainfall

The month with the most rainfall is December, when the rain falls for 29.3 days and typically aggregates up to 199mm (7.83") of precipitation.

Daylight

The month with the longest days is December, with an average of 13h and 0min of daylight.
On the first day of the month, sunrise is at 05:37 and sunset at 18:37. On the last day of December, sunrise is at 05:50 and sunset at 18:53 -03.

Sunshine

In December, the average sunshine is 6.8h.

UV index

In December, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 6 during December translates into these guidelines:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Frequently asked questions

What is the temperature in December in Itaguaru?
In December, in Itaguaru, the average high-temperature is 27.6°C (81.7°F), and the average low-temperature is 19.4°C (66.9°F). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in December is estimated at 32°C (89.6°F).
What is the average humidity in December in Itaguaru?
In December, the average relative humidity in Itaguaru is 87%.
What is the wettest month in Itaguaru?
The month with the most rainfall in Itaguaru, Brazil, is December, when the rain falls for 29.3 days and typically aggregates up to 199mm (7.83") of precipitation.
How many days does it rain in December in Itaguaru?
In Itaguaru, during December, the rain falls for 29.3 days and regularly aggregates up to 199mm (7.83") of precipitation.
When are the longest days in Itaguaru?
With an average of 13h and 0min of daylight, December has the longest days of the year in Itaguaru, Brazil.
What is the average length of the day in December in Itaguaru?
In December, the average day length in Itaguaru, Brazil, is 13h and 3min.
When are sunrise and sunset in December in Itaguaru?
In December, on the first day of the month, sunrise is at 05:37 and sunset at 18:37. On the last day of the month, in Itaguaru, Brazil, sunrise is at 05:50 and sunset at 18:53 -03.
How long on average sun shines in December in Itaguaru?
In December, the average sunshine duration is 6.8h.
What is the UV index reading in December in Itaguaru?
In Itaguaru, Brazil, the average daily maximum UV index in December is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Itaguaru, Brazil
Average temperature in December
Itaguaru, Brazil
  • Average high temperature in December: 27.6°C

The warmest month (with the highest average high temperature) is September (34.1°C).
The month with the lowest average high temperature is May (27.1°C).

  • Average low temperature in December: 19.4°C

The month with the highest average low temperature is September (21°C).
The coldest months (with the lowest average low temperature) are June and July (16.6°C).

Average pressure in December - Itaguaru, Brazil
Average pressure in December
Itaguaru, Brazil
  • Average pressure in December: 1011mbar

The month with the highest atmospheric pressure is July (1016.6mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).

Average wind speed in December - Itaguaru, Brazil
Average wind speed in December
Itaguaru, Brazil
  • Average wind speed in December: 6.2km/h

The windiest month (with the highest average wind speed) is August (8.9km/h).
The calmest month (with the lowest average wind speed) is March (5.3km/h).

Average humidity in December - Itaguaru, Brazil
Average humidity in December
Itaguaru, Brazil
  • Average humidity in December: 87%

The month with the highest relative humidity is March (89%).
The month with the lowest relative humidity is August (39%).

Average rainfall in December - Itaguaru, Brazil
Average rainfall in December
Itaguaru, Brazil
  • Average rainfall in December: 199mm

The wettest month (with the highest rainfall) is December (199mm).
The driest month (with the least rainfall) is July (1mm).

Average rainfall days in December - Itaguaru, Brazil
Average rainfall days in December
Itaguaru, Brazil
  • Average rainfall days in December: 29.3 days

The month with the highest number of rainy days is December (29.3 days).
The month with the least rainy days is August (0.8 days).

Average daylight in December / Average sunshine in December - Itaguaru, Brazil
Average daylight in December /
Average sunshine in December
Itaguaru, Brazil
  • Average daylight in December: 13h and 0min

The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 12min).

  • Average sunshine in December: 6h and 5min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 42min).

Average sunshine days in December - Itaguaru, Brazil
Average sunshine days in December
Itaguaru, Brazil
  • Average sunshine days in December: 1.8 days

The month with the most sunshine days is July (30.1 days).
The month with the least sunshine days is February (0.9 days).

Average UV index in December - Itaguaru, Brazil
Average UV index in December
Itaguaru, Brazil
  • Average UV index in December: 6

The months with the highest UV index are August and September (UV index 7).
The months with the lowest UV index are February and March (UV index 5).

Average cloud cover in December - Itaguaru, Brazil
Average cloud cover in December
Itaguaru, Brazil
  • Average cloud cover in December: 58

The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 11).

Average visibility in December - Itaguaru, Brazil
Average visibility in December
Itaguaru, Brazil
  • Average visibility in December: 7km

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April and December (7km).

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