December weather forecast
Barra do Quaraí, Brazil

The first month of the summer, December, is a tropical month in Barra do Quaraí, Brazil, with an average temperature ranging between max 31.2°C (88.2°F) and min 18.7°C (65.7°F).

Temperature

Barra do Quaraí, Brazil, in December observes a minor temperature shift, with average high-temperatures adjusting from a warm 28.2°C (82.8°F) in November to a hot 31.2°C (88.2°F). Barra do Quaraí in December observes a sharp transition from the daytime heat, falling to an average low of 18.7°C (65.7°F).

Heat index

December's mean heat index is calculated to be a fiery hot 37°C (98.6°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Observations indicate that the heat index values are for shady locations with light wind. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In Barra do Quaraí, Brazil, the average relative humidity in December is 66%.

Rainfall

December is the month with the most rainfall. Rain falls for 12.5 days and accumulates 110mm (4.33") of precipitation.

Daylight

December has the longest days of the year, with an average of 14h and 6min of daylight.
On the first day of December in Barra do Quaraí, Brazil, sunrise is at 05:40 and sunset at 19:38. On the last day of the month, sunrise is at 05:51 and sunset at 19:55 -03.

Sunshine

December has the most sunshine of the year, with an average of 10.7h of sunshine.

UV index

January and December, with an average maximum UV index of 7, are months with the highest UV index in Barra do Quaraí. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 7 during December leads to these advisories:
Resist extreme sun exposure. Guarding against solar damage is essential. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.