December weather forecast
Madre de Deus, Brazil

December, the first month of the summer in Madre de Deus, is also a hot month, with an average temperature ranging between min 22.6°C (72.7°F) and max 30.9°C (87.6°F).

Temperature

A minimal variation is noted in Madre de Deus's average high-temperature at the onset of December, reaching a still tropical 30.9°C (87.6°F) from November's 30.2°C (86.4°F). Throughout December nights, Madre de Deus experiences a consistent temperature average of 22.6°C (72.7°F).

Heat index

December's heat index is appraised at a torrid 39°C (102.2°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

The average relative humidity in December is 76%.

Rainfall

In Madre de Deus, during December, the rain falls for 13.1 days and regularly aggregates up to 48mm (1.89") of precipitation. In Madre de Deus, during the entire year, the rain falls for 225.4 days and collects up to 749mm (29.49") of precipitation.

Sea temperature

In Madre de Deus, in December, the average water temperature is 27.2°C (81°F).
Note: For swimming, diving, and enjoying other water activities, the range of 25°C (77°F) to 29°C (84.2°F) in water temperature is considered ideal, offering pleasure for extended periods without discomfort.

Daylight

The month with the longest days is December, with an average of 12h and 54min of daylight.
On the first day of the month, sunrise is at 04:59 and sunset at 17:48. On the last day of December, sunrise is at 05:11 and sunset at 18:03 -03.

Sunshine

The average sunshine in December is 8.1h.

UV index

January through April, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 7 during December translates into these guidelines:
Deter overexposure. Protecting against the sun's effects is essential. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take caution! The UV rays from the Sun gain strength from sand and water reflections.