December weather forecastCajati, Brazil
December
Weather in December
The first month of the summer, December, is a hot month in Cajati, Brazil, with an average temperature ranging between min 19.9°C (67.8°F) and max 30.5°C (86.9°F).Temperature
The advent of December signifies a minor shift to an average high-temperature of a tropical 30.5°C (86.9°F), aligning closely with November. Cajati throughout December, experiences an average nighttime temperature of 19.9°C (67.8°F).Heat index
Throughout December, the heat index is computed to be a scorching 40°C (104°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.Remember that heat index calculations are made for conditions in the shade with light wind. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
December is the least humid month in Cajati, with an average relative humidity of 82%.Rainfall
In Cajati, Brazil, in December, it is raining for 21.9 days, with typically 105mm (4.13") of accumulated precipitation. Throughout the year, there are 210 rainfall days, and 893mm (35.16") of precipitation is accumulated.Daylight
With an average of 13h and 36min of daylight, December has the longest days of the year in Cajati.On the first day of the month, sunrise is at 05:14 and sunset at 18:48. On the last day of December, sunrise is at 05:26 and sunset at 19:05 -03.
Sunshine
In December, the average sunshine in Cajati is 6.6h.UV index
The months with the highest UV index are January through March, October through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 6 in December interprets into the following advice:
Deflect overexposure. Sun protection is a necessity. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cajati, Brazil
- Average high temperature in December: 30.5°C
The warmest month (with the highest average high temperature) is February (31°C).
The months with the lowest average high temperature are June and July (23.3°C).
- Average low temperature in December: 19.9°C
The month with the highest average low temperature is January (20.8°C).
The coldest month (with the lowest average low temperature) is July (13.5°C).
Average pressure in December
Cajati, Brazil
- Average pressure in December: 1011.6mbar
The month with the highest atmospheric pressure is July (1020.1mbar).
The month with the lowest atmospheric pressure is December (1011.6mbar).
Average wind speed in December
Cajati, Brazil
- Average wind speed in December: 5km/h
The windiest months (with the highest average wind speed) are October, November and December (5km/h).
The calmest months (with the lowest average wind speed) are May and June (4km/h).
Average humidity in December
Cajati, Brazil
- Average humidity in December: 82%
The month with the highest relative humidity is June (87%).
The month with the lowest relative humidity is December (82%).
Average rainfall in December
Cajati, Brazil
- Average rainfall in December: 105mm
The wettest month (with the highest rainfall) is January (131mm).
The driest month (with the least rainfall) is August (37mm).
Average rainfall days in December
Cajati, Brazil
- Average rainfall days in December: 21.9 days
The month with the highest number of rainy days is January (24.7 days).
The month with the least rainy days is June (11.3 days).
Average daylight in December /
Average sunshine in December
Cajati, Brazil
- Average daylight in December: 13h and 36min
The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 36min).
- Average sunshine in December: 6h and 36min
The months with the most sunshine are February and April (Average sunshine: 6h and 54min).
The months with the least sunshine are October and November (Average sunshine: 5h and 54min).
Average sunshine days in December
Cajati, Brazil
- Average sunshine days in December: 5.4 days
The month with the most sunshine days is June (16.9 days).
The month with the least sunshine days is January (4 days).
Average UV index in December
Cajati, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, February, March, October, November and December (UV index 6).
The months with the lowest UV index are April, May, June, July, August and September (UV index 5).
Average cloud cover in December
Cajati, Brazil
- Average cloud cover in December: 63
The month with the most cloud cover is November (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 56).
Average visibility in December
Cajati, Brazil
- Average visibility in December: 7km
The months with the highest visibility are September and December (7km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, October and November (6km).
