December weather forecastGuaiçara, Brazil

Weather in December

December, the first month of the summer in Guaiçara, is still a warm month, with an average temperature varying between 29.8°C (85.6°F) and 21.1°C (70°F).

Temperature

With the onset of December, the average high-temperature stands at a still moderately hot 29.8°C (85.6°F), closely aligned with November's 29.9°C (85.8°F). Guaiçara's nights in December experience an average temperature drop to a pleasant 21.1°C (70°F).

Heat index

Throughout December, the heat index is appraised at a torrid 37°C (98.6°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In Guaiçara, Brazil, the average relative humidity in December is 79%.

Rainfall

In Guaiçara, in December, during 26.4 rainfall days, 175mm (6.89") of precipitation is typically accumulated. Throughout the year, there are 195.6 rainfall days, and 1139mm (44.84") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 13h and 24min of daylight.
On the first day of December, sunrise is at 05:27 and sunset at 18:49. On the last day of the month, sunrise is at 05:39 and sunset at 19:05 -03.

Sunshine

The average sunshine in December is 7.7h.

UV index

The months with the highest UV index are January through April, July through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 6 during December translates into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.