December weather forecast
São Conrado, Brazil

December, the first month of the summer in São Conrado, is also a moderately hot month, with an average temperature varying between 23°C (73.4°F) and 29.1°C (84.4°F).

Temperature

In December, São Conrado notes an average high-temperature of a still warm 29.1°C (84.4°F), hardly different from the preceding month. In São Conrado, in December, the average low-temperature is a still moderately hot 23°C (73.4°F).

Heat index

During December, the heat index is appraised at a torrid 35°C (95°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In December, the average relative humidity is 81%.

Rainfall

In São Conrado, Brazil, in December, it is raining for 18.1 days, with typically 67mm (2.64") of accumulated precipitation. Throughout the year, there are 172 rainfall days, and 543mm (21.38") of precipitation is accumulated.

Daylight

The month with the longest days in São Conrado is December, with an average of 13h and 30min of daylight.
On the first day of December in São Conrado, sunrise is at 04:58 and sunset at 18:25. On the last day of the month, sunrise is at 05:10 and sunset at 18:42 -03.

Sunshine

In São Conrado, the average sunshine in December is 7.9h.

UV index

January and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: A maximum high UV index of 7 in December translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.