December weather forecast
Santa Cruz do Arari, Brazil

The first month of the summer, December, is still a hot month in Santa Cruz do Arari, Brazil, with an average temperature fluctuating between 26.1°C (79°F) and 30.5°C (86.9°F).

Temperature

Transitioning into December, Santa Cruz do Arari experiences an average high-temperature of a still hot 30.5°C (86.9°F), marking a minor shift from the preceding month. Santa Cruz do Arari's December nights demonstrate minimal variation from the daytime temperatures, with an average of 26.1°C (79°F).

Heat index

The heat index value for December is estimated at a fiery hot 38°C (100.4°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In December, the average relative humidity is 75%.

Rainfall

In Santa Cruz do Arari, Brazil, in December, it is raining for 25.2 days, with typically 205mm (8.07") of accumulated precipitation. Throughout the year, in Santa Cruz do Arari, Brazil, there are 296.2 rainfall days, and 2404mm (94.65") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 12h and 12min of daylight.
On the first day of the month, sunrise is at 06:01 and sunset at 18:10. On the last day of December, sunrise is at 06:15 and sunset at 18:24 -03.

Sunshine

The average sunshine in December is 8.1h.

UV index

The months with the highest UV index in Santa Cruz do Arari are February, March, May through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 7 in December interprets into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.