December weather forecast
Senador Pompeu, Brazil

December, the first month of the summer in Senador Pompeu, is also a hot month, with an average temperature fluctuating between 32.9°C (91.2°F) and 23°C (73.4°F).

Temperature

The onset of December marks an average high-temperature of a still hot 32.9°C (91.2°F), hardly differing from November's 34.1°C (93.4°F). An average low-temperature of 23°C (73.4°F) is noted during the nights in December.

Heat index

December's average heat index is evaluated at a very hot 39°C (102.2°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Be aware that heat index ratings are designed for shaded locations and minor breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In Senador Pompeu, the average relative humidity in December is 58%.

Rainfall

In Senador Pompeu, in December, it is raining for 13.4 days, with typically 33mm (1.3") of accumulated precipitation. Throughout the year, there are 180.8 rainfall days, and 623mm (24.53") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 12h and 24min of daylight.
On the first day of the month, sunrise is at 05:14 and sunset at 17:39. On the last day of December, sunrise is at 05:27 and sunset at 17:54 -03.

Sunshine

In Senador Pompeu, the average sunshine in December is 7.8h.

UV index

The months with the highest UV index are August through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 7 in December translates into the following instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.