December weather forecastJuti, Brazil

Weather in December

December, the first month of the summer in Juti, is still a tropical month, with temperature in the range of an average low of 21°C (69.8°F) and an average high of 30.8°C (87.4°F).

Temperature

The arrival of December brings an average high-temperature of a still tropical 30.8°C (87.4°F), nearly identical to November's 31°C (87.8°F). Juti experiences an average nighttime temperature of 21°C (69.8°F) in the month of December.

Heat index

December's mean heat index is evaluated at a blisteringly hot 40°C (104°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Consider that heat index readings are for situations in the shade and light wind. 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 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important 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.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The average relative humidity in December is 79%.

Rainfall

In Juti, during December, the rain falls for 24.1 days and regularly aggregates up to 137mm (5.39") of precipitation. Throughout the year, in Juti, there are 192.3 rainfall days, and 1062mm (41.81") of precipitation is accumulated.

Daylight

With an average of 13h and 30min of daylight, December has the longest days of the year.
On the first day of December in Juti, Brazil, sunrise is at 04:44 and sunset at 18:10. On the last day of the month, sunrise is at 04:56 and sunset at 18:27 -04.

Sunshine

The average sunshine in December is 9.5h.

UV index

January through April, July through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 6 in December translates into this advice:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.