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 average high-temperature for December is a still warm 27.4°C (81.3°F), closely aligning with the temperature of the preceding month. During December, the nighttime temperature in Rio das Flores averages of 18.7°C (65.7°F).Heat index
For December, the heat index is estimated at a hot 32°C (89.6°F). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
The average relative humidity in December is 87%.Rainfall
December is the month with the most rainfall in Rio das Flores. Rain falls for 27.6 days and accumulates 203mm (7.99") of precipitation.Daylight
With an average of 13h and 30min of daylight, December has the longest days of the year in Rio das Flores.On the first day of December in Rio das Flores, Brazil, sunrise is at 05:01 and sunset at 18:25. On the last day of the month, sunrise is at 05:13 and sunset at 18:41 -03.
Sunshine
In December, the average sunshine is 7.2h.UV index
The months with the highest UV index in Rio das Flores are January, October and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 6 suggests this advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Rio das Flores in December?
What is the average humidity in December in Rio das Flores?
What is the rainiest month in Rio das Flores?
How much does it rain in Rio das Flores in December?
When are the longest days in Rio das Flores?
What is the average length of the day in December in Rio das Flores?
What time are sunrise and sunset in December in Rio das Flores?
How many hours of sunshine does Rio das Flores have in December?
When is the highest UV index in Rio das Flores?
What is the UV index reading in December in Rio das Flores?
Average temperature in December
Rio das Flores, Brazil
- Average high temperature in December: 27.4°C
The warmest months (with the highest average high temperature) are January and February (27.8°C).
The month with the lowest average high temperature is June (22.6°C).
- Average low temperature in December: 18.7°C
The month with the highest average low temperature is January (18.8°C).
The coldest month (with the lowest average low temperature) is July (12.8°C).
Average pressure in December
Rio das Flores, Brazil
- Average pressure in December: 1012.4mbar
The month with the highest atmospheric pressure is July (1020.8mbar).
The month with the lowest atmospheric pressure is December (1012.4mbar).
Average wind speed in December
Rio das Flores, Brazil
- Average wind speed in December: 5.9km/h
The windiest month (with the highest average wind speed) is October (7km/h).
The calmest month (with the lowest average wind speed) is March (5km/h).
Average humidity in December
Rio das Flores, Brazil
- Average humidity in December: 87%
The months with the highest relative humidity are March and April (89%).
The month with the lowest relative humidity is September (77%).
Average rainfall in December
Rio das Flores, Brazil
- Average rainfall in December: 203mm
The wettest month (with the highest rainfall) is December (203mm).
The driest month (with the least rainfall) is July (17mm).
Average rainfall days in December
Rio das Flores, Brazil
- Average rainfall days in December: 27.6 days
The month with the highest number of rainy days is December (27.6 days).
The month with the least rainy days is August (9.2 days).
Average daylight in December /
Average sunshine in December
Rio das Flores, 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 48min).
- Average sunshine in December: 7h and 1min
The month with the most sunshine is July (Average sunshine: 8h and 18min).
The month with the least sunshine is November (Average sunshine: 6h and 48min).
Average sunshine days in December
Rio das Flores, Brazil
- Average sunshine days in December: 1 days
The month with the most sunshine days is August (18.4 days).
The month with the least sunshine days is December (1 days).
Average UV index in December
Rio das Flores, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, October and December (UV index 6).
The months with the lowest UV index are February, March, April, May, June, July, August, September and November (UV index 5).
Average cloud cover in December
Rio das Flores, Brazil
- Average cloud cover in December: 56
The months with the most cloud cover are March and November (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Rio das Flores, Brazil
- Average visibility in December: 7km
The months with the highest visibility are August, September and October (8km).
The months with the lowest visibility are March, April and May (6km).
