Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
As São Caetano do Sul steps into December, the average high-temperature holds at a still moderately hot 26.5°C (79.7°F), hinting at a minor fluctuation from the prior month. December nights in São Caetano do Sul are marked by an average temperature drop to an enjoyable 19.7°C (67.5°F).Humidity
The average relative humidity in December is 82%.Rainfall
In São Caetano do Sul, during December, the rain falls for 22.8 days and regularly aggregates up to 127mm (5") of precipitation. Throughout the year, in São Caetano do Sul, there are 217.7 rainfall days, and 1056mm (41.57") of precipitation is accumulated.Daylight
With an average of 13h and 36min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 05:10 and sunset at 18:40. On the last day of December, sunrise is at 05:22 and sunset at 18:56 -03.
Sunshine
The average sunshine in December is 7.2h.UV index
The months with the highest UV index in São Caetano do Sul are January, March, October through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 6 in December converts into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
What are December temperatures in São Caetano do Sul?
What is the average humidity in December in São Caetano do Sul?
How much does it rain in São Caetano do Sul in December?
When are the longest days in São Caetano do Sul?
What is the average length of the day in December in São Caetano do Sul?
What time are sunrise and sunset in December in São Caetano do Sul?
How many hours of sunshine does São Caetano do Sul have in December?
What are the months with the highest UV index in São Caetano do Sul?
What is the UV index intensity in December in São Caetano do Sul?
Average temperature in December
São Caetano do Sul, Brazil
- Average high temperature in December: 26.5°C
The warmest month (with the highest average high temperature) is February (27.3°C).
The month with the lowest average high temperature is July (21.4°C).
- Average low temperature in December: 19.7°C
The month with the highest average low temperature is January (20.4°C).
The coldest month (with the lowest average low temperature) is July (14.3°C).
Average pressure in December
São Caetano do Sul, Brazil
- Average pressure in December: 1011.8mbar
The month with the highest atmospheric pressure is July (1020.2mbar).
The month with the lowest atmospheric pressure is December (1011.8mbar).
Average wind speed in December
São Caetano do Sul, Brazil
- Average wind speed in December: 9.4km/h
The windiest month (with the highest average wind speed) is November (10.1km/h).
The calmest month (with the lowest average wind speed) is February (8.1km/h).
Average humidity in December
São Caetano do Sul, Brazil
- Average humidity in December: 82%
The months with the highest relative humidity are March and April (84%).
The month with the lowest relative humidity is August (75%).
Average rainfall in December
São Caetano do Sul, Brazil
- Average rainfall in December: 127mm
The wettest month (with the highest rainfall) is January (199mm).
The driest month (with the least rainfall) is August (37mm).
Average rainfall days in December
São Caetano do Sul, Brazil
- Average rainfall days in December: 22.8 days
The month with the highest number of rainy days is January (26.7 days).
The month with the least rainy days is August (10.9 days).
Average daylight in December /
Average sunshine in December
São Caetano do Sul, Brazil
- Average daylight in December: 13h and 4min
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 42min).
- Average sunshine in December: 7h and 1min
The month with the most sunshine is September (Average sunshine: 7h and 48min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days in December
São Caetano do Sul, Brazil
- Average sunshine days in December: 6.8 days
The month with the most sunshine days is August (17.2 days).
The month with the least sunshine days is February (3.1 days).
Average UV index in December
São Caetano do Sul, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, March, October, November and December (UV index 6).
The months with the lowest UV index are February, April, May, June, July, August and September (UV index 5).
Average cloud cover in December
São Caetano do Sul, Brazil
- Average cloud cover in December: 51
The month with the most cloud cover is November (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
São Caetano do Sul, Brazil
- Average visibility in December: 8km
The months with the highest visibility are June, July, August and September (9km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (8km).
São Caetano do Sul, Brazil
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