December weather forecast
Caiçara, Brazil

December

Weather in December

December, the first month of the summer in Caiçara, is also a moderately hot month, with an average temperature fluctuating between 18.2°C (64.8°F) and 29.6°C (85.3°F).

Temperature

The shift to December signals an average high-temperature of a still moderately hot 29.6°C (85.3°F), subtly varied from November's 27.9°C (82.2°F). In Caiçara, December is marked by an average low-temperature of 18.2°C (64.8°F).

Heat index

December's heat index is computed to be a sweltering 36°C (96.8°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. 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 largely significant for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

December is the least humid month, with an average relative humidity of 78%.

Rainfall

In Caiçara, in December, during 19.1 rainfall days, 114mm (4.49") of precipitation is typically accumulated. Throughout the year, there are 185.1 rainfall days, and 1259mm (49.57") of precipitation is accumulated.

Daylight

The month with the longest days in Caiçara is December, with an average of 13h and 48min of daylight.
On the first day of December in Caiçara, Brazil, sunrise is at 05:30 and sunset at 19:15. On the last day of the month, sunrise is at 05:42 and sunset at 19:31 -03.

Sunshine

The months with the most sunshine in Caiçara are November and December, with an average of 8.8h of sunshine.

UV index

The months with the highest UV index are January through March, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index, 6 during December, leads to the following recommendations:
Deflect overexposure. Sun protection is a necessity. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Frequently asked questions

How hot is it in Caiçara in December?
In Caiçara, 29.6°C (85.3°F) is the average high-temperature and 18.2°C (64.8°F) is the average low-temperature during December. In December, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, is computed to be 36°C (96.8°F).
What is the least humid month in Caiçara?
The least humid month is December, with an average relative humidity of 78%.
What is the average humidity in December in Caiçara?
In December, the average relative humidity in Caiçara is 78%.
How many days does it rain in December in Caiçara?
In December, in Caiçara, Brazil, the rain falls for 19.1 days. Throughout December, 114mm (4.49") of precipitation is accumulated.
When are the longest days in Caiçara?
With an average of 13h and 48min of daylight, December has the longest days of the year in Caiçara, Brazil.
How many hours of daylight does Caiçara have in December?
The average day length in December in Caiçara, Brazil, is 13h and 50min.
What time are sunrise and sunset in December in Caiçara?
On the first day of December in Caiçara, Brazil, sunrise is at 05:30 and sunset at 19:15. On the last day of the month, sunrise is at 05:42 and sunset at 19:31 -03.
What are the months with the most sunshine in Caiçara?
The months with the most sunshine in Caiçara are November and December, with an average of 8.8h of sunshine.
How long on average sun shines in December in Caiçara?
In December, the average sunshine duration is 8.8h.
What is the month with the highest UV index in Caiçara?
The months with the highest UV index in Caiçara, Brazil, are January through March, November and December, with an average maximum UV index of 6.
What is the UV index intensity in December in Caiçara?
In Caiçara, the average daily maximum UV index in December is 6. A UV Index of 6 to 7 symbolizes a high hazard to health 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Caiçara, Brazil
  • Average high temperature in December: 29.6°C

The warmest month (with the highest average high temperature) is January (29.9°C).
The month with the lowest average high temperature is June (19.4°C).

  • Average low temperature in December: 18.2°C

The month with the highest average low temperature is January (18.9°C).
The coldest month (with the lowest average low temperature) is July (10.5°C).

Average pressure in December
Caiçara, Brazil
  • Average pressure in December: 1010.5mbar

The month with the highest atmospheric pressure is July (1019.1mbar).
The month with the lowest atmospheric pressure is December (1010.5mbar).

Average wind speed in December
Caiçara, Brazil
  • Average wind speed in December: 7.3km/h

The windiest month (with the highest average wind speed) is August (8.4km/h).
The calmest months (with the lowest average wind speed) are March and April (6.9km/h).

Average humidity in December
Caiçara, Brazil
  • Average humidity in December: 78%

The month with the highest relative humidity is June (87%).
The month with the lowest relative humidity is December (78%).

Average rainfall in December
Caiçara, Brazil
  • Average rainfall in December: 114mm

The wettest month (with the highest rainfall) is October (145mm).
The driest month (with the least rainfall) is August (64mm).

Average rainfall days in December
Caiçara, Brazil
  • Average rainfall days in December: 19.1 days

The month with the highest number of rainy days is January (21.6 days).
The month with the least rainy days is August (10.8 days).

Average daylight in December /
Average sunshine in December
Caiçara, Brazil
  • Average daylight in December: 13h and 5min

The month with the longest days is December (Average daylight: 13h and 48min).
The month with the shortest days is June (Average daylight: 10h and 24min).

  • Average sunshine in December: 8h and 5min

The months with the most sunshine are November and December (Average sunshine: 8h and 48min).
The months with the least sunshine are May and June (Average sunshine: 7h and 30min).

Average sunshine days in December
Caiçara, Brazil
  • Average sunshine days in December: 9.6 days

The month with the most sunshine days is August (18.3 days).
The month with the least sunshine days is February (6.7 days).

Average UV index in December
Caiçara, 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
Caiçara, Brazil
  • Average cloud cover in December: 33

The month with the most cloud cover is May (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in December
Caiçara, Brazil
  • Average visibility in December: 8km

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

englishespañol中文
Share