December weather forecast
Luís Gomes, Brazil

December, the first month of the summer in Luís Gomes, is still a tropical month, with an average temperature varying between 34°C (93.2°F) and 23.3°C (73.9°F).

Temperature

The arrival of December brings an average high-temperature of a still hot 34°C (93.2°F), subtly diverging from November's 34.5°C (94.1°F). Luís Gomes in December anticipates an average nighttime temperature of 23.3°C (73.9°F).

Heat index

For December, the heat index is estimated at a very hot 39°C (102.2°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In December, the average relative humidity in Luís Gomes is 52%.

Rainfall

In Luís Gomes, in December, during 12.2 rainfall days, 35mm (1.38") of precipitation is typically accumulated. Throughout the year, there are 161.9 rainfall days, and 582mm (22.91") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 12h and 30min of daylight.
On the first day of December in Luís Gomes, sunrise is at 05:08 and sunset at 17:36. On the last day of the month, sunrise is at 05:22 and sunset at 17:51 -03.

Sunshine

The average sunshine in December in Luís Gomes, Brazil, is 9.1h.

UV index

The months with the highest UV index in Luís Gomes are January through March, August 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 rays for ordinary individuals.
Note: An average UV index of 7 in December transforms into this advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. 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. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.