December weather forecast
Monte Alegre do Piauí, Brazil

The first month of the summer, December, is still a hot month in Monte Alegre do Piauí, Brazil, with an average temperature varying between 32.3°C (90.1°F) and 21.6°C (70.9°F).

Temperature

The average high-temperature during December is a still tropical 32.3°C (90.1°F), almost matching the conditions of the preceding month. Monte Alegre do Piauí's temperature lowers to a mean of 21.6°C (70.9°F) during the nights in December.

Heat index

December's mean heat index is estimated at a blisteringly hot 40°C (104°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Heat index's context suggests values are appropriate for shady areas and slight breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The average relative humidity in December in Monte Alegre do Piauí is 67%.

Rainfall

In Monte Alegre do Piauí, during December, the rain falls for 20.5 days and regularly aggregates up to 81mm (3.19") of precipitation. In Monte Alegre do Piauí, during the entire year, the rain falls for 161.3 days and collects up to 709mm (27.91") of precipitation.

Daylight

With an average of 12h and 42min of daylight, December has the longest days of the year in Monte Alegre do Piauí.
On the first day of the month, sunrise is at 05:30 and sunset at 18:10. On the last day of December, in Monte Alegre do Piauí, sunrise is at 05:43 and sunset at 18:25 -03.

Sunshine

December has the most sunshine of the year, with an average of 10.5h of sunshine.

UV index

The months with the lowest UV index are February and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 6 during December translates into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.