January weather forecastChã Preta, Brazil

Weather in January

January, like December, is another hot summer month in Chã Preta, Brazil, with an average temperature fluctuating between 20.8°C (69.4°F) and 30.3°C (86.5°F).

Temperature

At the onset of January, Chã Preta records an average high-temperature of a still hot 30.3°C (86.5°F), showing little deviation from the preceding month. Throughout January nights, Chã Preta experiences a consistent temperature average of 20.8°C (69.4°F).

Heat index

The average heat index in January is appraised at a sweltering 38°C (100.4°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. 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.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In Chã Preta, the average relative humidity in January is 78%.

Rainfall

In Chã Preta, in January, it is raining for 16.8 days, with typically 39mm (1.54") of accumulated precipitation. In Chã Preta, during the entire year, the rain falls for 227.4 days and collects up to 480mm (18.9") of precipitation.

Daylight

In January, the average length of the day is 12h and 35min.
On the first day of the month, sunrise is at 05:08 and sunset at 17:48. On the last day of January, sunrise is at 05:23 and sunset at 17:53 -03.

Sunshine

In Chã Preta, the average sunshine in January is 6.9h.

UV index

The months with the highest UV index are January through May, September through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In January, the average maximum UV index of 6 translates into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.