December weather forecastMissi, Brazil

Weather in December

December, the first month of the summer in Missi, is also a hot month, with an average temperature fluctuating between 32.5°C (90.5°F) and 24.7°C (76.5°F).

Temperature

The start of December sees the average high-temperature at a still tropical 32.5°C (90.5°F), showing little difference from November's 33.2°C (91.8°F). In December, Missi records an average nighttime temperature of 24.7°C (76.5°F).

Heat index

December's average heat index is computed to be an extremely hot 41°C (105.8°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In Missi, the average relative humidity in December is 68%.

Rainfall

In Missi, in December, it is raining for 11.7 days, with typically 25mm (0.98") of accumulated precipitation. In Missi, during the entire year, the rain falls for 190 days and collects up to 800mm (31.5") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 18min of daylight.
On the first day of the month, sunrise is at 05:19 and sunset at 17:38. On the last day of December, in Missi, Brazil, sunrise is at 05:32 and sunset at 17:52 -03.

Sunshine

In Missi, the average sunshine in December is 7.8h.

UV index

The months with the highest UV index are January, February, May through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In December, a regular UV index of 7 translates into these guidelines:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.