January weather forecast
São Pedro do Piauí, Brazil

January, like December, is another tropical summer month in São Pedro do Piauí, Brazil, with an average temperature varying between 31.7°C (89.1°F) and 22.9°C (73.2°F).

Temperature

A minimal variation is noted in São Pedro do Piauí's average high-temperature at the onset of January, reaching a still hot 31.7°C (89.1°F) from December's 33.5°C (92.3°F). In January, São Pedro do Piauí experiences an average nighttime temperature of 22.9°C (73.2°F).

Heat index

January's mean heat index is estimated at a blistering 42°C (107.6°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In São Pedro do Piauí, Brazil, the average relative humidity in January is 78%.

Rainfall

In São Pedro do Piauí, during January, the rain falls for 28.3 days and regularly aggregates up to 235mm (9.25") of precipitation. In São Pedro do Piauí, during the entire year, the rain falls for 207.4 days and collects up to 1348mm (53.07") of precipitation.

Daylight

The average length of the day in January is 12h and 25min.
On the first day of the month, sunrise is at 05:40 and sunset at 18:08. On the last day of January, in São Pedro do Piauí, sunrise is at 05:53 and sunset at 18:15 -03.

Sunshine

In São Pedro do Piauí, the average sunshine in January is 8.9h.

UV index

The months with the highest UV index are January, March through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 7 in January translates into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. 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. During bright days, sunglasses that offer UVA and UVB defense are recommended.