December weather forecast
Mira Estrela, Brazil

December, the first month of the summer in Mira Estrela, is still a hot month, with an average temperature ranging between min 21.4°C (70.5°F) and max 30.1°C (86.2°F).

Temperature

Mira Estrela experiences a transition to a still hot 30.1°C (86.2°F) in average high-temperatures with the arrival of December, not greatly differing from November's 30.5°C (86.9°F). The average low-temperature in Mira Estrela during December nights is an agreeable 21.4°C (70.5°F).

Heat index

For most parts of December, the heat index is appraised at a torrid 38°C (100.4°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

The average relative humidity in December in Mira Estrela is 80%.

Rainfall

In Mira Estrela, in December, it is raining for 28 days, with typically 203mm (7.99") of accumulated precipitation. Throughout the year, in Mira Estrela, there are 207.2 rainfall days, and 1290mm (50.79") of precipitation is accumulated.

Daylight

December has the longest days of the year in Mira Estrela, with an average of 13h and 18min of daylight.
On the first day of the month, sunrise is at 05:32 and sunset at 18:47. On the last day of December, in Mira Estrela, Brazil, sunrise is at 05:44 and sunset at 19:03 -03.

Sunshine

In Mira Estrela, Brazil, the average sunshine in December is 7.8h.

UV index

The months with the lowest UV index are January through July, September through December, with an average maximum UV index of 6. 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 maximum daily UV index of 6 during December translates into the following directions:
Deflect overexposure. Sun protection is a necessity. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.