December weather forecast
Santo Amaro das Brotas, Brazil

December, the first month of the summer in Santo Amaro das Brotas, is still a hot month, with temperature in the range of an average high of 30.9°C (87.6°F) and an average low of 24°C (75.2°F).

Temperature

Santo Amaro das Brotas's December showcases an average high-temperature of a still hot 30.9°C (87.6°F), hardly distinct from November's 30.2°C (86.4°F). Throughout the month of December, the average temperature dips to a moderately hot 24°C (75.2°F) at night.

Heat index

The heat index value during December is calculated to be a torrid 38°C (100.4°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

January through March and December, with an average relative humidity of 73%, are the least humid months in Santo Amaro das Brotas.

Rainfall

In Santo Amaro das Brotas, in December, it is raining for 12 days, with typically 28mm (1.1") of accumulated precipitation. In Santo Amaro das Brotas, during the entire year, the rain falls for 211.1 days and collects up to 584mm (22.99") of precipitation.

Daylight

With an average of 12h and 42min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 04:56 and sunset at 17:38. On the last day of December, in Santo Amaro das Brotas, sunrise is at 05:09 and sunset at 17:53 -03.

Sunshine

The months with the most sunshine in Santo Amaro das Brotas are March and December, with an average of 8.3h of sunshine.

UV index

The months with the highest UV index in Santo Amaro das Brotas are January through April, October through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, an average UV index of 7 transforms into the following instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.