December weather forecast
Tomé-Açu, Brazil

The first month of the summer, December, is still a hot month in Tomé-Açu, Brazil, with temperature in the range of an average low of 22.1°C (71.8°F) and an average high of 32.5°C (90.5°F).

Temperature

The arrival of December is marked by an average high-temperature of a still hot 32.5°C (90.5°F), bearing a close resemblance to November. Tomé-Açu's temperature lowers to a mean of 22.1°C (71.8°F) during the nights in December.

Heat index

The heat index value during December is estimated at a life-threatening hot 47°C (116.6°F). Note: Heat exhaustion and heat cramps are probable. Heatstroke can follow with prolonged activity.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

The average relative humidity in December in Tomé-Açu, Brazil, is 81%.

Rainfall

In December, the rain falls for 25.3 days. Throughout December, 105mm (4.13") of precipitation is accumulated. Throughout the year, in Tomé-Açu, there are 277.4 rainfall days, and 1235mm (48.62") of precipitation is accumulated.

Daylight

The month with the longest days in Tomé-Açu is December, with an average of 12h and 18min of daylight.
On the first day of December, sunrise is at 05:54 and sunset at 18:09. On the last day of the month, sunrise is at 06:08 and sunset at 18:23 -03.

Sunshine

The average sunshine in December in Tomé-Açu is 7h.

UV index

January through April, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Tomé-Açu. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, the average maximum UV index of 6 translates into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.