December weather forecast
Colina, Brazil

December, the first month of the summer in Colina, is still a warm month, with temperature in the range of an average low of 20.5°C (68.9°F) and an average high of 28.7°C (83.7°F).

Temperature

In December, Colina notes an average high-temperature of a still warm 28.7°C (83.7°F), hardly different from the preceding month. In the month of December, Colina experiences an average low-temperature of 20.5°C (68.9°F).

Heat index

For December, the heat index is estimated at a torrid 35°C (95°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Consider that heat index readings are for situations in the shade and light wind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. 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 quite important for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

The average relative humidity in December in Colina is 84%.

Rainfall

In Colina, in December, during 27.6 rainfall days, 183mm (7.2") of precipitation is typically accumulated. In Colina, during the entire year, the rain falls for 211.9 days and collects up to 1351mm (53.19") of precipitation.

Daylight

With an average of 13h and 24min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 05:24 and sunset at 18:42. On the last day of the month, sunrise is at 05:36 and sunset at 18:58 -03.

Sunshine

In Colina, the average sunshine in December is 7.4h.

UV index

The months with the lowest UV index in Colina, Brazil, are January, February, April, May and December, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 5 in December converts into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.