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
As December takes its course, Rio Grande da Serra's average high-temperature registers at a still moderately hot 26.6°C (79.9°F), closely aligning with the preceding month. Rio Grande da Serra's nighttime temperature in December experiences a slight dip from daytime highs, falling to an average of 22.5°C (72.5°F).Humidity
In Rio Grande da Serra, Brazil, the average relative humidity in December is 82%.Rainfall
In Rio Grande da Serra, in December, it is raining for 21.4 days, with typically 82mm (3.23") of accumulated precipitation. Throughout the year, there are 191.3 rainfall days, and 819mm (32.24") of precipitation is accumulated.Daylight
The month with the longest days in Rio Grande da Serra, Brazil, is December, with an average of 13h and 36min of daylight.On the first day of December, sunrise is at 05:09 and sunset at 18:39. On the last day of the month, sunrise is at 05:21 and sunset at 18:56 -03.
Sunshine
The average sunshine in December is 7.5h.UV index
In December, the average daily maximum UV index in Rio Grande da Serra is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 6 during December leads to these instructions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Rio Grande da Serra?
What is the average humidity in December in Rio Grande da Serra?
How much does it rain in Rio Grande da Serra in December?
When are the longest days in Rio Grande da Serra?
How many hours of daylight does Rio Grande da Serra have in December?
What time are sunrise and sunset in December in Rio Grande da Serra?
How many hours of sunshine does Rio Grande da Serra have in December?
How high is the UV index in December in Rio Grande da Serra?
Average temperature in December
Rio Grande da Serra, Brazil
- Average high temperature in December: 26.6°C
The warmest month (with the highest average high temperature) is February (27.8°C).
The month with the lowest average high temperature is July (22°C).
- Average low temperature in December: 22.5°C
The month with the highest average low temperature is February (23.7°C).
The coldest month (with the lowest average low temperature) is August (17.5°C).
Average pressure in December
Rio Grande da Serra, Brazil
- Average pressure in December: 1011.7mbar
The month with the highest atmospheric pressure is July (1020.1mbar).
The month with the lowest atmospheric pressure is December (1011.7mbar).
Average wind speed in December
Rio Grande da Serra, Brazil
- Average wind speed in December: 10.7km/h
The windiest month (with the highest average wind speed) is November (11.6km/h).
The calmest month (with the lowest average wind speed) is February (9.8km/h).
Average humidity in December
Rio Grande da Serra, Brazil
- Average humidity in December: 82%
The month with the highest relative humidity is November (84%).
The month with the lowest relative humidity is August (78%).
Average rainfall in December
Rio Grande da Serra, Brazil
- Average rainfall in December: 82mm
The wettest month (with the highest rainfall) is February (125mm).
The driest month (with the least rainfall) is August (35mm).
Average rainfall days in December
Rio Grande da Serra, Brazil
- Average rainfall days in December: 21.4 days
The month with the highest number of rainy days is January (23.3 days).
The month with the least rainy days is August (9.1 days).
Average daylight in December /
Average sunshine in December
Rio Grande da Serra, 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 3min
The month with the most sunshine is May (Average sunshine: 8h and 6min).
The month with the least sunshine is November (Average sunshine: 7h and 0min).
Average sunshine days in December
Rio Grande da Serra, Brazil
- Average sunshine days in December: 6.6 days
The month with the most sunshine days is August (19.5 days).
The month with the least sunshine days is February (3.5 days).
Average UV index in December
Rio Grande da Serra, Brazil
- Average UV index in December: 6
The month with the highest UV index is January (UV index 7).
The months with the lowest UV index are May, July, August and September (UV index 5).
Average cloud cover in December
Rio Grande da Serra, Brazil
- Average cloud cover in December: 43
The month with the most cloud cover is November (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Rio Grande da Serra, Brazil
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).
