December weather forecast
Parnamirim, Brazil

The first month of the summer, December, is a hot month in Parnamirim, Brazil, with an average temperature fluctuating between 30.1°C (86.2°F) and 25.3°C (77.5°F).

Temperature

The average high-temperature is a hot 30.1°C (86.2°F) in December, hardly different from the 29.7°C (85.5°F) recorded in November. Parnamirim's nights throughout December are marked by an average low temperature of 25.3°C (77.5°F), a minor drop from the day's high.

Heat index

The heat index in December is computed to be a very hot 36°C (96.8°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In December, the average relative humidity is 72%.

Rainfall

In Parnamirim, Brazil, in December, it is raining for 13.3 days, with typically 14mm (0.55") of accumulated precipitation. In Parnamirim, during the entire year, the rain falls for 173.2 days and collects up to 403mm (15.87") of precipitation.

Daylight

December has the longest days of the year in Parnamirim, with an average of 12h and 30min of daylight.
On the first day of December in Parnamirim, sunrise is at 04:57 and sunset at 17:23. On the last day of the month, sunrise is at 05:10 and sunset at 17:38 -03.

Sunshine

In December, the average sunshine is 8.2h.

UV index

January through June, August through December, with an average maximum UV index of 7, are months with the highest UV index in Parnamirim. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 7 in December translates into these instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.