December weather forecastCampo Bom, Brazil

December

Weather in December

The first month of the summer, December, is still a warm month in Campo Bom, Brazil, with an average temperature varying between 28.7°C (83.7°F) and 17.9°C (64.2°F).

Temperature

Transitioning into December, Campo Bom records an average high-temperature of a still moderately hot 28.7°C (83.7°F), almost identical to November's 26.4°C (79.5°F). An average low-temperature of 17.9°C (64.2°F) is noted during the nights in December.

Heat index

For December, the heat index is evaluated at a tropical 33°C (91.4°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

December is the least humid month in Campo Bom, with an average relative humidity of 75%.

Rainfall

In Campo Bom, in December, during 11.4 rainfall days, 22mm (0.87") of precipitation is typically accumulated. Throughout the year, in Campo Bom, Brazil, there are 118.4 rainfall days, and 272mm (10.71") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 14h and 0min of daylight.
On the first day of December, sunrise is at 05:16 and sunset at 19:10. On the last day of the month, sunrise is at 05:27 and sunset at 19:27 -03.

Sunshine

The month with the most sunshine in Campo Bom is December, with an average of 8.6h of sunshine.

UV index

January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index in Campo Bom. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 6 during December leads to these advisories:
Guard oneself from overexposure. Defence against sun injury is vital. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.

Frequently asked questions

The high-temperature during December is 28.7°C (83.7°F) and the low-temperature is 17.9°C (64.2°F). In December, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is evaluated at 33°C (91.4°F).

December is the least humid month, with an average relative humidity of 75%.

In December, the average relative humidity in Campo Bom, Brazil, is 75%.

In Campo Bom, in December, it is raining for 11.4 days, with typically 22mm (0.87") of accumulated precipitation.

December has the longest days of the year in Campo Bom, Brazil, with an average of 14h and 0min of daylight.

The average day length in December is 14h and 1min.

On the first day of December in Campo Bom, Brazil, sunrise is at 05:16 and sunset at 19:10. On the last day of the month, sunrise is at 05:27 and sunset at 19:27 -03.

With an average of 8.6h of sunshine, December has the most sunshine of the year in Campo Bom.

In December, the average sunshine duration is 8.6h.

The months with the highest UV index are January through March, November and December, with an average maximum UV index of 6.

In Campo Bom, the average daily maximum UV index in December is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
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
Campo Bom, Brazil

  • Average high temperature in December: 28.7°C

The warmest month (with the highest average high temperature) is February (29.3°C).
The month with the lowest average high temperature is July (18.3°C).

  • Average low temperature in December: 17.9°C

The month with the highest average low temperature is January (18.8°C).
The coldest month (with the lowest average low temperature) is July (9.8°C).

Average pressure in December
Campo Bom, Brazil

  • Average pressure in December: 1011.5mbar

The month with the highest atmospheric pressure is July (1019.9mbar).
The month with the lowest atmospheric pressure is December (1011.5mbar).

Average wind speed in December
Campo Bom, Brazil

  • Average wind speed in December: 9.5km/h

The windiest month (with the highest average wind speed) is August (9.9km/h).
The calmest month (with the lowest average wind speed) is May (8.6km/h).

Average humidity in December
Campo Bom, Brazil

  • Average humidity in December: 75%

The months with the highest relative humidity are May, June and July (83%).
The month with the lowest relative humidity is December (75%).

Average rainfall in December
Campo Bom, Brazil

  • Average rainfall in December: 22mm

The wettest months (with the highest rainfall) are January and October (30mm).
The driest month (with the least rainfall) is September (11mm).

Average rainfall days in December
Campo Bom, Brazil

  • Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is January (12.8 days).
The month with the least rainy days is June (7.7 days).

Average daylight in December /
Average sunshine in December
Campo Bom, Brazil

  • Average daylight in December: 14h and 0min

The month with the longest days is December (Average daylight: 14h and 0min).
The month with the shortest days is June (Average daylight: 10h and 18min).

  • Average sunshine in December: 8h and 36min

The month with the most sunshine is December (Average sunshine: 8h and 36min).
The month with the least sunshine is May (Average sunshine: 7h and 18min).

Average sunshine days in December
Campo Bom, Brazil

  • Average sunshine days in December: 17.4 days

The month with the most sunshine days is July (21.4 days).
The month with the least sunshine days is February (15.3 days).

Average UV index in December
Campo Bom, Brazil

  • Average UV index in December: 6

The months with the highest UV index are January, February, March, November and December (UV index 6).
The months with the lowest UV index are May and June (UV index 4).

Average cloud cover in December
Campo Bom, Brazil

  • Average cloud cover in December: 32

The month with the most cloud cover is May (Cloud cover 39).
The month with the least cloud cover is November (Cloud cover 31).

Average visibility in December
Campo Bom, Brazil

  • Average visibility in December: 9km

The months with the highest visibility are February, April, June, July, August, November and December (9km).
The months with the lowest visibility are January, March, May, September and October (8km).