December weather forecast
Janduís, Brazil

The first month of the summer, December, is also a hot month in Janduís, Brazil, with temperature in the range of an average low of 24.4°C (75.9°F) and an average high of 34.9°C (94.8°F).

Temperature

Janduís notes an average high-temperature of a hot 34.9°C (94.8°F) in December, displaying minor variation from November. In Janduís, December's nights observe an average temperature dip to a warm 24.4°C (75.9°F).

Heat index

The heat index for December is calculated to be a scorching 41°C (105.8°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In Janduís, Brazil, the average relative humidity in December is 52%.

Rainfall

In Janduís, during December, the rain falls for 7.2 days and regularly aggregates up to 15mm (0.59") of precipitation. Throughout the year, in Janduís, there are 122.6 rainfall days, and 442mm (17.4") of precipitation is accumulated.

Daylight

The month with the longest days in Janduís is December, with an average of 12h and 30min of daylight.
On the first day of December, sunrise is at 05:05 and sunset at 17:32. On the last day of the month, sunrise is at 05:18 and sunset at 17:46 -03.

Sunshine

In December, the average sunshine is 9.2h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Janduís. The months with the lowest UV index in Janduís, Brazil, are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A typical high UV index of 7 in December suggests the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended.