December weather forecast
Crato, Brazil

The first month of the summer, December, is still a hot month in Crato, Brazil, with an average temperature fluctuating between 20.9°C (69.6°F) and 31.4°C (88.5°F).

Temperature

On the advent of December, Crato's average high-temperature exhibits a minor adjustment to a still tropical 31.4°C (88.5°F) from November's 32.5°C (90.5°F). Crato observes an average low-temperature of 20.9°C (69.6°F) during December.

Heat index

December's average heat index is computed to be a fiery hot 36°C (96.8°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. 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 highly important for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In Crato, the average relative humidity in December is 60%.

Rainfall

In Crato, in December, during 17 rainfall days, 78mm (3.07") of precipitation is typically accumulated. In Crato, during the entire year, the rain falls for 172.3 days and collects up to 764mm (30.08") of precipitation.

Daylight

December has the longest days of the year, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:11 and sunset at 17:42. On the last day of December, in Crato, sunrise is at 05:24 and sunset at 17:57 -03.

Sunshine

In December, the average sunshine in Crato, Brazil, is 8.1h.

UV index

January through August and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 6 in December, converts into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.