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
December is marked by an average high-temperature of a still moderately hot 27.2°C (81°F), almost identical to the preceding month. Ipanema encounters a small divergence from daytime high temperatures, averaging a low-temperature of 23.4°C (74.1°F) during December nights.Heat index
December's average heat index is estimated at a hot 30°C (86°F). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.Evaluating the heat index requires understanding its values in the shade and with gentle winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. 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 remain especially vital for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
The months with the highest humidity are November and December, with an average relative humidity of 82%.Rainfall
In Ipanema, Brazil, during December, the rain falls for 14.5 days and regularly aggregates up to 70mm (2.76") of precipitation. In Ipanema, during the entire year, the rain falls for 160.8 days and collects up to 655mm (25.79") 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 04:58 and sunset at 18:25. On the last day of December, sunrise is at 05:10 and sunset at 18:41 -03.
Sunshine
In December, the average sunshine is 8.7h.UV index
The months with the highest UV index are January, February and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 7 during December morphs into the following directions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. 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 Ipanema in December?
What are the most humid months?
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 in Ipanema?
What time are sunrise and sunset in December?
How many hours of sunshine does Ipanema have in December?
What are the months with the highest UV index?
How high is the UV index in December?
Average temperature in December
Ipanema, Brazil
- Average high temperature in December: 27.2°C
The warmest month (with the highest average high temperature) is February (29.1°C).
The month with the lowest average high temperature is July (23.7°C).
- Average low temperature in December: 23.4°C
The month with the highest average low temperature is January (24.3°C).
The coldest month (with the lowest average low temperature) is August (19°C).
Average pressure in December
Ipanema, Brazil
- Average pressure in December: 1011.8mbar
The month with the highest atmospheric pressure is July (1020.4mbar).
The month with the lowest atmospheric pressure is December (1011.8mbar).
Average wind speed in December
Ipanema, Brazil
- Average wind speed in December: 11.8km/h
The windiest month (with the highest average wind speed) is August (14.4km/h).
The calmest month (with the lowest average wind speed) is March (10.8km/h).
Average humidity in December
Ipanema, Brazil
- Average humidity in December: 82%
The months with the highest relative humidity are November and December (82%).
The month with the lowest relative humidity is August (77%).
Average rainfall in December
Ipanema, Brazil
- Average rainfall in December: 70mm
The wettest month (with the highest rainfall) is November (99mm).
The driest month (with the least rainfall) is June (34mm).
Average rainfall days in December
Ipanema, Brazil
- Average rainfall days in December: 14.5 days
The month with the highest number of rainy days is November (18.5 days).
The month with the least rainy days is February (10.4 days).
Average daylight in December /
Average sunshine in December
Ipanema, 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: 8h and 4min
The month with the most sunshine is February (Average sunshine: 9h and 0min).
The month with the least sunshine is October (Average sunshine: 7h and 42min).
Average sunshine days in December
Ipanema, Brazil
- Average sunshine days in December: 15 days
The month with the most sunshine days is August (18.3 days).
The month with the least sunshine days is November (10.1 days).
Average UV index in December
Ipanema, Brazil
- Average UV index in December: 7
The months with the highest UV index are January, February and December (UV index 7).
The month with the lowest UV index is September (UV index 5).
Average cloud cover in December
Ipanema, Brazil
- Average cloud cover in December: 37
The month with the most cloud cover is November (Cloud cover 44).
The month with the least cloud cover is February (Cloud cover 27).
Average visibility in December
Ipanema, Brazil
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
