December weather forecast
Japeri, Brazil

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

Temperature

The average high-temperature during December registers at a still warm 28.8°C (83.8°F), maintaining a close resemblance to the previous month. Japeri's December nights cool down to an average low-temperature of 20.5°C (68.9°F).

Heat index

The heat index value during December is appraised at a very hot 35°C (95°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Understanding the heat index involves considering values for shaded locales with light wind. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. 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 human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

The average relative humidity in December in Japeri, Brazil, is 85%.

Rainfall

In Japeri, during December, the rain falls for 26.8 days and regularly aggregates up to 161mm (6.34") of precipitation. In Japeri, during the entire year, the rain falls for 221.3 days and collects up to 1089mm (42.87") of precipitation.

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 Japeri, sunrise is at 05:01 and sunset at 18:26. On the last day of the month, sunrise is at 05:12 and sunset at 18:42 -03.

Sunshine

In Japeri, the average sunshine in December is 7.3h.

UV index

The months with the highest UV index are January through March, October and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: An average maximum UV index of 6 in December leads to these recommendations:
Fend off overexposure. Sun protection is vital. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Enhance your sun protection with tightly woven, yet airy clothing.