December weather forecast
Ipirá, Brazil

The first month of the summer, December, is still a hot month in Ipirá, Brazil, with an average temperature varying between 21°C (69.8°F) and 31.7°C (89.1°F).

Temperature

The commencement of December notes an average high-temperature of a still tropical 31.7°C (89.1°F), exhibiting little difference from the previous month. Ipirá's temperature drops to an average low of 21°C (69.8°F) during the nights of December.

Heat index

During December, the heat index is estimated at a scorching 40°C (104°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. 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 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In Ipirá, the average relative humidity in December is 71%.

Rainfall

In Ipirá, in December, it is raining for 14.7 days, with typically 57mm (2.24") of accumulated precipitation. In Ipirá, during the entire year, the rain falls for 210 days and collects up to 447mm (17.6") of precipitation.

Daylight

December has the longest days of the year in Ipirá, with an average of 12h and 48min of daylight.
On the first day of the month, sunrise is at 05:04 and sunset at 17:51. On the last day of December, sunrise is at 05:17 and sunset at 18:07 -03.

Sunshine

In Ipirá, the average sunshine in December is 7.8h.

UV index

January through March, October and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: During December, 7 as the daily maximum UV index converts into the following advice:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.