December weather forecastCaçapava, Brazil
December
Weather in December
The first month of the summer, December, is still a warm month in Caçapava, Brazil, with an average temperature varying between 27.1°C (80.8°F) and 17.7°C (63.9°F).Temperature
A minimal variation is noted in Caçapava's average high-temperature at the onset of December, reaching a still warm 27.1°C (80.8°F) from November's 25.6°C (78.1°F). Caçapava in December anticipates an average nighttime temperature of 17.7°C (63.9°F).Heat index
In December, the average heat index is evaluated at a tropical 30°C (86°F). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.Heat index's context suggests values are appropriate for shady areas and slight breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humidity
In Caçapava, the average relative humidity in December is 84%.Rainfall
In Caçapava, in December, during 27.8 rainfall days, 141mm (5.55") of precipitation is typically accumulated. Throughout the year, in Caçapava, there are 223.8 rainfall days, and 1014mm (39.92") of precipitation is accumulated.Daylight
December has the longest days of the year in Caçapava, with an average of 13h and 30min of daylight.On the first day of the month, sunrise is at 05:08 and sunset at 18:35. On the last day of December, in Caçapava, sunrise is at 05:20 and sunset at 18:51 -03.
Sunshine
In Caçapava, the average sunshine in December is 7.5h.UV index
February through December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 5 during December, leads to the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Caçapava, Brazil
- Average high temperature in December: 27.1°C
The warmest month (with the highest average high temperature) is February (27.3°C).
The month with the lowest average high temperature is June (21.4°C).
- Average low temperature in December: 17.7°C
The month with the highest average low temperature is January (17.8°C).
The coldest month (with the lowest average low temperature) is July (11.8°C).
Average pressure in December
Caçapava, Brazil
- Average pressure in December: 1012.2mbar
The month with the highest atmospheric pressure is July (1020.4mbar).
The month with the lowest atmospheric pressure is December (1012.2mbar).
Average wind speed in December
Caçapava, Brazil
- Average wind speed in December: 6.3km/h
The windiest months (with the highest average wind speed) are September and October (7.1km/h).
The calmest months (with the lowest average wind speed) are February and April (5.7km/h).
Average humidity in December
Caçapava, Brazil
- Average humidity in December: 84%
The months with the highest relative humidity are March and April (88%).
The month with the lowest relative humidity is September (75%).
Average rainfall in December
Caçapava, Brazil
- Average rainfall in December: 141mm
The wettest month (with the highest rainfall) is January (195mm).
The driest month (with the least rainfall) is August (24mm).
Average rainfall days in December
Caçapava, Brazil
- Average rainfall days in December: 27.8 days
The month with the highest number of rainy days is January (27.9 days).
The month with the least rainy days is August (7.9 days).
Average daylight in December /
Average sunshine in December
Caçapava, Brazil
- Average daylight in December: 13h and 30min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 42min).
- Average sunshine in December: 7h and 30min
The month with the most sunshine is September (Average sunshine: 8h and 36min).
The month with the least sunshine is April (Average sunshine: 7h and 18min).
Average sunshine days in December
Caçapava, Brazil
- Average sunshine days in December: 1.9 days
The month with the most sunshine days is August (20.4 days).
The month with the least sunshine days is December (1.9 days).
Average UV index in December
Caçapava, Brazil
- Average UV index in December: 5
The month with the highest UV index is January (UV index 6).
The months with the lowest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover in December
Caçapava, Brazil
- Average cloud cover in December: 53
The months with the most cloud cover are March and April (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Caçapava, Brazil
- Average visibility in December: 7km
The months with the highest visibility are July, August, September and October (8km).
The months with the lowest visibility are March, April and May (6km).
