December weather forecast
Itaju, Brazil

The first month of the summer, December, is still a warm month in Itaju, Brazil, with an average temperature fluctuating between 20.6°C (69.1°F) and 29.6°C (85.3°F).

Temperature

December's entry sees an average high-temperature of a still warm 29.6°C (85.3°F), replicating November's climate. Throughout December, the average low-temperature dips to an agreeable 20.6°C (69.1°F).

Heat index

The heat index in December is appraised at a very hot 36°C (96.8°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in December in Itaju is 79%.

Rainfall

In Itaju, in December, it is raining for 26.4 days, with typically 163mm (6.42") of accumulated precipitation. Throughout the year, there are 193.3 rainfall days, and 1101mm (43.35") of precipitation is accumulated.

Daylight

With an average of 13h and 30min of daylight, December has the longest days of the year in Itaju.
On the first day of December, sunrise is at 05:23 and sunset at 18:45. On the last day of the month, sunrise is at 05:34 and sunset at 19:02 -03.

Sunshine

In December, the average sunshine is 7.8h.

UV index

The months with the highest UV index in Itaju are January through April, July through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 6 translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.