December weather forecast
Cruzália, Brazil

The first month of the summer, December, is also a moderately hot month in Cruzália, Brazil, with an average temperature varying between 19.6°C (67.3°F) and 29°C (84.2°F).

Temperature

Cruzália experiences a minor change to a still moderately hot 29°C (84.2°F) in average high-temperature during December, closely reflecting November. An average low-temperature of 19.6°C (67.3°F) is common in Cruzália during the nights of December.

Heat index

During December, the heat index is evaluated at a very hot 35°C (95°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In Cruzália, the average relative humidity in December is 81%.

Rainfall

In Cruzália, in December, during 26.3 rainfall days, 155mm (6.1") of precipitation is typically accumulated. In Cruzália, during the entire year, the rain falls for 198.9 days and collects up to 1201mm (47.28") of precipitation.

Daylight

December has the longest days of the year in Cruzália, with an average of 13h and 30min of daylight.
On the first day of the month, sunrise is at 05:29 and sunset at 18:55. On the last day of December, sunrise is at 05:41 and sunset at 19:11 -03.

Sunshine

In Cruzália, Brazil, the average sunshine in December is 7.7h.

UV index

In December, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index, 5 in December, converts into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.