December weather forecastItabuna, Brazil

December

Weather in December

December, the first month of the summer in Itabuna, is also a moderately hot month, with temperature in the range of an average low of 21.5°C (70.7°F) and an average high of 29.5°C (85.1°F).

Temperature

The introduction of December notes a subtle temperature variation to a still moderately hot 29.5°C (85.1°F) from November's 28.4°C (83.1°F). Itabuna's nights in December cool down to an average low-temperature of 21.5°C (70.7°F).

Heat index

December's heat index is computed to be a very hot 37°C (98.6°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In December, the average relative humidity in Itabuna is 82%.

Rainfall

In December, the rain falls for 20.6 days. Throughout December, 67mm (2.64") of precipitation is accumulated. In Itabuna, during the entire year, the rain falls for 239.6 days and collects up to 635mm (25") 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 04:58 and sunset at 17:54. On the last day of December, in Itabuna, sunrise is at 05:10 and sunset at 18:10 -03.

Sunshine

In December, the average sunshine is 8h.

UV index

January through December, with an average maximum UV index of 6, are months with the highest UV index. January through December, with an average maximum UV index of 6, are months with the lowest UV index in Itabuna. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: A typical high UV index of 6 in December suggests the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Frequently asked questions

The high-temperature, in December, in Itabuna, is 29.5°C (85.1°F), while the low-temperature averages to 21.5°C (70.7°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in December is computed to be 37°C (98.6°F).

In Itabuna, the average relative humidity in December is 82%.

In Itabuna, during December, the rain falls for 20.6 days and regularly aggregates up to 67mm (2.64") of precipitation.

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

In Itabuna, Brazil, the average day length in December is 12h and 59min.

In December, on the first day of the month, sunrise is at 04:58 and sunset at 17:54. On the last day of the month, in Itabuna, sunrise is at 05:10 and sunset at 18:10 -03.

In December, the average sunshine duration in Itabuna, Brazil, is 8h.

January through December, with an average maximum UV index of 6, are months with the highest UV index in Itabuna, Brazil.

The months with the lowest UV index in Itabuna, Brazil, are January through December, with an average maximum UV index of 6.

The average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
Itabuna, Brazil

  • Average high temperature in December: 29.5°C

The warmest month (with the highest average high temperature) is March (30.1°C).
The month with the lowest average high temperature is July (25.4°C).

  • Average low temperature in December: 21.5°C

The month with the highest average low temperature is March (21.7°C).
The coldest month (with the lowest average low temperature) is August (18.1°C).

Average pressure in December
Itabuna, Brazil

  • Average pressure in December: 1012.9mbar

The month with the highest atmospheric pressure is July (1019.4mbar).
The month with the lowest atmospheric pressure is December (1012.9mbar).

Average wind speed in December
Itabuna, Brazil

  • Average wind speed in December: 7km/h

The windiest month (with the highest average wind speed) is September (7.6km/h).
The calmest months (with the lowest average wind speed) are February, March and April (6.3km/h).

Average humidity in December
Itabuna, Brazil

  • Average humidity in December: 82%

The months with the highest relative humidity are June and July (86%).
The month with the lowest relative humidity is February (81%).

Average rainfall in December
Itabuna, Brazil

  • Average rainfall in December: 67mm

The wettest month (with the highest rainfall) is March (90mm).
The driest month (with the least rainfall) is September (26mm).

Average rainfall days in December
Itabuna, Brazil

  • Average rainfall days in December: 20.6 days

The month with the highest number of rainy days is January (23.7 days).
The month with the least rainy days is September (15.5 days).

Average daylight in December /
Average sunshine in December
Itabuna, 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 18min).

  • Average sunshine in December: 8h and 0min

The month with the most sunshine is February (Average sunshine: 9h and 42min).
The month with the least sunshine is July (Average sunshine: 5h and 30min).

Average sunshine days in December
Itabuna, Brazil

  • Average sunshine days in December: 6.2 days

The month with the most sunshine days is August (10.3 days).
The month with the least sunshine days is February (3.6 days).

Average UV index in December
Itabuna, Brazil

  • Average UV index in December: 6

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).

Average cloud cover in December
Itabuna, Brazil

  • Average cloud cover in December: 50

The month with the most cloud cover is November (Cloud cover 57).
The month with the least cloud cover is February (Cloud cover 45).

Average visibility in December
Itabuna, Brazil

  • Average visibility in December: 8km

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (8km).
The month with the lowest visibility is July (7km).