December weather forecast
Varre-Sai, Brazil

The first month of the summer, December, is still a warm month in Varre-Sai, Brazil, with an average temperature ranging between min 19.9°C (67.8°F) and max 28.7°C (83.7°F).

Temperature

Varre-Sai experiences an average high-temperature of a still moderately hot 28.7°C (83.7°F) with the onset of December, subtly varied from November's 27.6°C (81.7°F). Throughout December, Varre-Sai's nights cool down to an average of 19.9°C (67.8°F).

Heat index

For December, the heat index is appraised at a sweltering 35°C (95°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The average relative humidity in December in Varre-Sai is 86%.

Rainfall

December is the month with the most rainfall in Varre-Sai. Rain falls for 26.4 days and accumulates 207mm (8.15") of precipitation.

Daylight

December has the longest days of the year, with an average of 13h and 24min of daylight.
On the first day of December in Varre-Sai, sunrise is at 04:57 and sunset at 18:16. On the last day of the month, sunrise is at 05:09 and sunset at 18:32 -03.

Sunshine

In December, the average sunshine in Varre-Sai is 7.8h.

UV index

The months with the highest UV index are January, February, August, September and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In December, a daily UV index of 6 turns into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.