December weather forecastBritânia, Brazil

December

Weather in December

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

Temperature

December's onset records a minor alteration in the average high-temperature to a still warm 27.6°C (81.7°F) from November's 28.3°C (82.9°F). Britânia cools down to an average low-temperature of 19.4°C (66.9°F) throughout the month of December.

Heat index

In December, the average heat index is appraised at a hot 32°C (89.6°F). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.
The standards for the heat index are set for locations in shade and under light breezes. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.

Humidity

In December, the average relative humidity is 87%.

Rainfall

December is the month with the most rainfall in Britânia. Rain falls for 29.3 days and accumulates 199mm (7.83") of precipitation.

Daylight

The month with the longest days in Britânia is December, with an average of 13h and 0min of daylight.
On the first day of the month, sunrise is at 05:44 and sunset at 18:42. On the last day of December, in Britânia, sunrise is at 05:57 and sunset at 18:58 -03.

Sunshine

In Britânia, the average sunshine in December is 6.8h.

UV index

In December, the average daily maximum UV index in Britânia is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 in December interprets into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

During December, Britânia experiences an average high-temperature of 27.6°C (81.7°F) and a low-temperature of 19.4°C (66.9°F). The average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, in December is appraised at 32°C (89.6°F).

The average relative humidity in December in Britânia, Brazil, is 87%.

December is the month with the most rainfall in Britânia. Rain falls for 29.3 days and accumulates 199mm (7.83") of precipitation.

In Britânia, during December, the rain falls for 29.3 days and regularly aggregates up to 199mm (7.83") of precipitation.

With an average of 13h and 0min of daylight, December has the longest days of the year in Britânia.

In December, the average day length is 13h and 1min.

On the first day of December in Britânia, Brazil, sunrise is at 05:44 and sunset at 18:42. On the last day of the month, sunrise is at 05:57 and sunset at 18:58 -03.

The average sunshine duration in December in Britânia, Brazil, is 6.8h.

In December, the average daily maximum UV index in Britânia is 6. A UV Index reading of 6 to 7 represents a high health threat from unprotected exposure to 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Britânia, 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
Britânia, 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
Britânia, 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
Britânia, 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
Britânia, 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
Britânia, 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
Britânia, 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 48min

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
Britânia, 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
Britânia, 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
Britânia, 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
Britânia, 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).