December weather forecast
Coremas, Brazil

The first month of the summer, December, is still a hot month in Coremas, Brazil, with an average temperature fluctuating between 34.6°C (94.3°F) and 23.6°C (74.5°F).

Temperature

With the transition into December, Coremas notes an average high-temperature of a hot 34.6°C (94.3°F), closely resembling November. During the nights in December, the temperature in Coremas averages to a moderately hot 23.6°C (74.5°F).

Heat index

During December, the heat index is estimated at a blisteringly hot 40°C (104°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The average relative humidity in December in Coremas is 51%.

Rainfall

In Coremas, Brazil, in December, it is raining for 10.8 days, with typically 31mm (1.22") of accumulated precipitation. In Coremas, during the entire year, the rain falls for 148.4 days and collects up to 508mm (20") of precipitation.

Daylight

With an average of 12h and 30min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 05:05 and sunset at 17:36. On the last day of December, in Coremas, sunrise is at 05:19 and sunset at 17:50 -03.

Sunshine

The average sunshine in December is 9.3h.

UV index

January through March, August through December, with an average maximum UV index of 7, are months with the highest UV index in Coremas. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 7 in December interprets into the following advice:
Shield from overexposure. Defense against sun-related harm is required. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.