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
December
Weather in December
Temperature
The start of December marks an average high-temperature of a still warm 26.5°C (79.7°F), hardly distinguishable from the conditions in November. During the month of December, the temperature falls to an average of 17.8°C (64°F).Humidity
In São José dos Campos, the average relative humidity in December is 85%.Rainfall
In São José dos Campos, in December, during 24.9 rainfall days, 134mm (5.28") of precipitation is typically accumulated. In São José dos Campos, during the entire year, the rain falls for 222.3 days and collects up to 1036mm (40.79") of precipitation.Daylight
With an average of 13h and 30min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 05:08 and sunset at 18:36. On the last day of December, sunrise is at 05:20 and sunset at 18:53 -03.
Sunshine
The average sunshine in December is 7.2h.UV index
The months with the lowest UV index are February through September, November and December, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 5 transforms into these recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
How much does it rain in December?
When are the longest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index in São José dos Campos?
What is the UV index reading in December?
Average temperature in December
São José dos Campos, Brazil
- Average high temperature in December: 26.5°C
The warmest month (with the highest average high temperature) is February (26.8°C).
The month with the lowest average high temperature is June (21.1°C).
- Average low temperature in December: 17.8°C
The month with the highest average low temperature is January (18.1°C).
The coldest month (with the lowest average low temperature) is July (12.2°C).
Average pressure in December
São José dos Campos, Brazil
- Average pressure in December: 1012.1mbar
The month with the highest atmospheric pressure is July (1020.4mbar).
The month with the lowest atmospheric pressure is December (1012.1mbar).
Average wind speed in December
São José dos Campos, Brazil
- Average wind speed in December: 6.8km/h
The windiest months (with the highest average wind speed) are October and November (7.5km/h).
The calmest month (with the lowest average wind speed) is February (6.1km/h).
Average humidity in December
São José dos Campos, Brazil
- Average humidity in December: 85%
The month with the highest relative humidity is March (89%).
The months with the lowest relative humidity are August and September (77%).
Average rainfall in December
São José dos Campos, Brazil
- Average rainfall in December: 134mm
The wettest month (with the highest rainfall) is January (194mm).
The driest month (with the least rainfall) is August (35mm).
Average rainfall days in December
São José dos Campos, Brazil
- Average rainfall days in December: 24.9 days
The month with the highest number of rainy days is January (26 days).
The month with the least rainy days is August (10.1 days).
Average daylight in December /
Average sunshine in December
São José dos Campos, Brazil
- Average daylight in December: 13h and 3min
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 1min
The month with the most sunshine is September (Average sunshine: 8h and 12min).
The months with the least sunshine are April and November (Average sunshine: 7h and 0min).
Average sunshine days in December
São José dos Campos, Brazil
- Average sunshine days in December: 5.5 days
The month with the most sunshine days is August (17.5 days).
The month with the least sunshine days is February (3.2 days).
Average UV index in December
São José dos Campos, Brazil
- Average UV index in December: 5
The months with the highest UV index are January and October (UV index 6).
The months with the lowest UV index are February, March, April, May, June, July, August, September, November and December (UV index 5).
Average cloud cover in December
São José dos Campos, Brazil
- Average cloud cover in December: 56
The month with the most cloud cover is March (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
São José dos Campos, 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).
