December weather forecast
Galiléia, Brazil

The first month of the summer, December, is also a moderately hot month in Galiléia, Brazil, with an average temperature ranging between min 20.5°C (68.9°F) and max 28.8°C (83.8°F).

Temperature

The shift to December signals an average high-temperature of a still warm 28.8°C (83.8°F), subtly varied from November's moderately hot 28.8°C (83.8°F). During December, Galiléia records an average temperature of 20.5°C (68.9°F) at night.

Heat index

December's mean heat index is calculated to be a sweltering 35°C (95°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. 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 extremely significant for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The most humid month in Galiléia is December, with an average relative humidity of 85%.

Rainfall

The month with the most rainfall is December, when the rain falls for 23.4 days and typically aggregates up to 185mm (7.28") of precipitation.

Daylight

December has the longest days of the year, with an average of 13h and 18min of daylight.
On the first day of the month, sunrise is at 04:59 and sunset at 18:11. On the last day of December, sunrise is at 05:11 and sunset at 18:27 -03.

Sunshine

In Galiléia, the average sunshine in December is 7.1h.

UV index

January through May, August through December, with an average maximum UV index of 6, are months with the highest UV index in Galiléia. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, the average maximum UV index of 6 translates into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.