December weather forecast
Arneiroz, Brazil

December, the first month of the summer in Arneiroz, is still a hot month, with an average temperature fluctuating between 32.2°C (90°F) and 22.5°C (72.5°F).

Temperature

In December, Arneiroz experiences a minor shift in meteorological conditions with average high-temperatures marked at a still tropical 32.2°C (90°F), closely mirroring the climate in November. Throughout December, an average nighttime temperature of 22.5°C (72.5°F) is experienced.

Heat index

Throughout December, the heat index is calculated to be a fiery hot 36°C (96.8°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. 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 primarily vital for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The average relative humidity in December is 56%.

Rainfall

In December, the rain falls for 13.1 days. Throughout December, 44mm (1.73") of precipitation is accumulated. Throughout the year, in Arneiroz, there are 155.6 rainfall days, and 702mm (27.64") 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 the month, sunrise is at 05:15 and sunset at 17:43. On the last day of December, sunrise is at 05:29 and sunset at 17:58 -03.

Sunshine

In December, the average sunshine is 7.9h.

UV index

August through December, with an average maximum UV index of 7, are months with the highest UV index in Arneiroz, Brazil. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 7 in December translates into this advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.