December weather forecast
Sandovalina, Brazil

December, the first month of the summer in Sandovalina, is still a hot month, with an average temperature varying between 21.3°C (70.3°F) and 30°C (86°F).

Temperature

During December, Sandovalina records an average high-temperature of a still hot 30°C (86°F), marking a slight divergence from November's 30.5°C (86.9°F). December in Sandovalina is noted for a mean low-temperature of 21.3°C (70.3°F).

Heat index

For most parts of December, the heat index is appraised at a very hot 37°C (98.6°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

The average relative humidity in December in Sandovalina is 78%.

Rainfall

In December, in Sandovalina, the rain falls for 25.8 days. Throughout December, 168mm (6.61") of precipitation is accumulated. In Sandovalina, during the entire year, the rain falls for 196.8 days and collects up to 1260mm (49.61") of precipitation.

Daylight

The month with the longest days is December, with an average of 13h and 30min of daylight.
On the first day of the month, sunrise is at 05:33 and sunset at 18:58. On the last day of December, sunrise is at 05:45 and sunset at 19:14 -03.

Sunshine

The average sunshine in December is 7.8h.

UV index

The months with the highest UV index are January through March, June through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, a daily maximum UV index of 6 leads to the following instructions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. 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. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.