December weather forecast
Igarapé Grande, Brazil

December, the first month of the summer in Igarapé Grande, is still a hot month, with an average temperature varying between 32.2°C (90°F) and 22.6°C (72.7°F).

Temperature

Welcoming December, Igarapé Grande notes an average high-temperature of a still tropical 32.2°C (90°F), nearly consistent with November's 33.9°C (93°F). Throughout the nights in December, Igarapé Grande experiences an average low-temperature of 22.6°C (72.7°F).

Heat index

The heat index in December is appraised at a blazing hot 45°C (113°F). Vigilance: Heat cramps and heat exhaustion are likely. The likelihood of heatstroke increases with continued activity.
Heat index determinations are made taking into account the shade and light air movements. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In Igarapé Grande, the average relative humidity in December is 79%.

Rainfall

In December, the rain falls for 25.5 days. Throughout December, 147mm (5.79") of precipitation is accumulated. Throughout the year, there are 250.9 rainfall days, and 1361mm (53.58") of precipitation is accumulated.

Daylight

The month with the longest days in Igarapé Grande, Brazil, is December, with an average of 12h and 24min of daylight.
On the first day of December in Igarapé Grande, sunrise is at 05:37 and sunset at 17:59. On the last day of the month, sunrise is at 05:51 and sunset at 18:14 -03.

Sunshine

In December, the average sunshine is 7.5h.

UV index

The months with the lowest UV index in Igarapé Grande, Brazil, are January through June and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: In December, a daily maximum UV index of 6 leads to the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.