December weather forecast
São Miguel do Araguaia, Brazil

December, the first month of the summer in São Miguel do Araguaia, is still a warm month, with temperature in the range of an average high of 28.8°C (83.8°F) and an average low of 20.3°C (68.5°F).

Temperature

December brings an average high-temperature of a still moderately hot 28.8°C (83.8°F), nearly identical to the preceding month. Throughout December, an average low-temperature of 20.3°C (68.5°F) is experienced in São Miguel do Araguaia.

Heat index

In December, the heat index is estimated at a torrid 35°C (95°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. 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 primarily vital for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In December, the average relative humidity is 82%.

Rainfall

In December, the rain falls for 29.1 days. Throughout December, 180mm (7.09") of precipitation is accumulated. Throughout the year, in São Miguel do Araguaia, there are 218.4 rainfall days, and 1251mm (49.25") of precipitation is accumulated.

Daylight

With an average of 12h and 54min of daylight, December has the longest days of the year in São Miguel do Araguaia.
On the first day of December, sunrise is at 05:44 and sunset at 18:35. On the last day of the month, sunrise is at 05:57 and sunset at 18:50 -03.

Sunshine

December has the least sunshine of the year in São Miguel do Araguaia, with an average of 7h of sunshine.

UV index

The months with the lowest UV index in São Miguel do Araguaia, Brazil, are January through July, October through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 during December translates into the following directions:
Resist extreme sun exposure. Guarding against solar damage is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.