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
Iguaí marks the onset of December with an average high-temperature of a still moderately hot 27.4°C (81.3°F), a subtle shift from November's 26.6°C (79.9°F). In December, Iguaí reports a consistent average low-temperature of 18.5°C (65.3°F) during the nights.Heat index
The average heat index in December is estimated at a tropical 31°C (87.8°F). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.The metrics for the heat index are tailored for both shady environments and light winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
The average relative humidity in December in Iguaí is 85%.Rainfall
In Iguaí, during December, the rain falls for 23.6 days and regularly aggregates up to 128mm (5.04") of precipitation. Throughout the year, there are 240.1 rainfall days, and 793mm (31.22") of precipitation is accumulated.Daylight
With an average of 13h and 0min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 05:01 and sunset at 17:57. On the last day of December, sunrise is at 05:14 and sunset at 18:13 -03.
Sunshine
In December, the average sunshine in Iguaí is 7.4h.UV index
January through April, September through December, with an average maximum UV index of 6, are months with the highest UV index in Iguaí. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 6 suggests these recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
What are the temperatures in Iguaí in December?
What is the average humidity in December in Iguaí?
How many days does it rain in December in Iguaí?
When are the longest days in Iguaí?
What is the average length of the day in December in Iguaí?
When is the sunrise / sunset in December in Iguaí?
How long on average sun shines in December in Iguaí?
When is the highest UV index in Iguaí?
What is the UV index intensity in December in Iguaí?
Average temperature in December
Iguaí, Brazil
- Average high temperature in December: 27.4°C
The warmest month (with the highest average high temperature) is February (28.1°C).
The month with the lowest average high temperature is July (23.5°C).
- Average low temperature in December: 18.5°C
The month with the highest average low temperature is March (18.8°C).
The coldest month (with the lowest average low temperature) is August (15.4°C).
Average pressure in December
Iguaí, Brazil
- Average pressure in December: 1013.2mbar
The month with the highest atmospheric pressure is July (1019.8mbar).
The month with the lowest atmospheric pressure is December (1013.2mbar).
Average wind speed in December
Iguaí, Brazil
- Average wind speed in December: 7.9km/h
The windiest month (with the highest average wind speed) is September (10.2km/h).
The calmest month (with the lowest average wind speed) is March (7.1km/h).
Average humidity in December
Iguaí, Brazil
- Average humidity in December: 85%
The months with the highest relative humidity are April and May (86%).
The month with the lowest relative humidity is September (78%).
Average rainfall in December
Iguaí, Brazil
- Average rainfall in December: 128mm
The wettest month (with the highest rainfall) is March (137mm).
The driest month (with the least rainfall) is August (15mm).
Average rainfall days in December
Iguaí, Brazil
- Average rainfall days in December: 23.6 days
The month with the highest number of rainy days is January (24.6 days).
The month with the least rainy days is September (14.5 days).
Average daylight in December /
Average sunshine in December
Iguaí, Brazil
- Average daylight in December: 13h and 0min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 18min).
- Average sunshine in December: 7h and 2min
The month with the most sunshine is February (Average sunshine: 8h and 0min).
The month with the least sunshine is July (Average sunshine: 5h and 18min).
Average sunshine days in December
Iguaí, Brazil
- Average sunshine days in December: 4.4 days
The month with the most sunshine days is September (10.1 days).
The month with the least sunshine days is February (3.7 days).
Average UV index in December
Iguaí, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, February, March, April, September, October, November and December (UV index 6).
The months with the lowest UV index are May, June, July and August (UV index 5).
Average cloud cover in December
Iguaí, Brazil
- Average cloud cover in December: 65
The months with the most cloud cover are April and November (Cloud cover 67).
The month with the least cloud cover is September (Cloud cover 55).
Average visibility in December
Iguaí, Brazil
- Average visibility in December: 6km
The months with the highest visibility are September and October (8km).
The months with the lowest visibility are January, February, March, April, May and December (6km).
Iguaí, Brazil
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