December weather forecast
Mendonça, Brazil

December, the first month of the summer in Mendonça, is also a moderately hot month, with an average temperature ranging between min 21.2°C (70.2°F) and max 29.8°C (85.6°F).

Temperature

The arrival of December coincides with an average high-temperature of a moderately hot 29.8°C (85.6°F), indicating a minimal shift from November's 30°C (86°F). Throughout the month of December, the nighttime temperature dips to an average of 21.2°C (70.2°F).

Heat index

Throughout December, the heat index is evaluated at a fiery hot 37°C (98.6°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

The average relative humidity in December is 81%.

Rainfall

In Mendonça, in December, it is raining for 28.5 days, with typically 201mm (7.91") of accumulated precipitation. In Mendonça, during the entire year, the rain falls for 208.9 days and collects up to 1257mm (49.49") of precipitation.

Daylight

The month with the longest days is December, with an average of 13h and 24min of daylight.
On the first day of December, sunrise is at 05:27 and sunset at 18:47. On the last day of the month, sunrise is at 05:39 and sunset at 19:03 -03.

Sunshine

The average sunshine in December is 7.6h.

UV index

January, March through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 6 in December translates into the following instructions:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.