December weather forecast
São Pedro do Piauí, Brazil

December, the first month of the summer in São Pedro do Piauí, is still a hot month, with an average temperature ranging between max 33.5°C (92.3°F) and min 23.6°C (74.5°F).

Temperature

Transitioning from November to December, São Pedro do Piauí observes an average high-temperature of a tropical 33.5°C (92.3°F), differing subtly from the previous month. In São Pedro do Piauí, an average low-temperature of 23.6°C (74.5°F) is recorded during December nights.

Heat index

The average heat index in December is estimated at a blisteringly hot 44°C (111.2°F). Keep wary: Heat cramps along with heat exhaustion are expected. Heatstroke is a possible outcome of ongoing activity.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In São Pedro do Piauí, the average relative humidity in December is 67%.

Rainfall

In São Pedro do Piauí, in December, it is raining for 21.7 days, with typically 115mm (4.53") of accumulated precipitation. In São Pedro do Piauí, Brazil, during the entire year, the rain falls for 207.4 days and collects up to 1348mm (53.07") of precipitation.

Daylight

With an average of 12h and 30min of daylight, December has the longest days of the year in São Pedro do Piauí.
On the first day of the month, sunrise is at 05:26 and sunset at 17:53. On the last day of December, sunrise is at 05:40 and sunset at 18:07 -03.

Sunshine

In São Pedro do Piauí, the average sunshine in December is 8.7h.

UV index

January, March through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: In December, the maximum UV index of 7 suggests these recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.