January weather forecast
Portão, Brazil

January, the same as December, is a moderately hot summer month in Portão, Brazil, with temperature in the range of an average low of 18.8°C (65.8°F) and an average high of 29.1°C (84.4°F).

Temperature

The average high-temperature during January is a still warm 29.1°C (84.4°F), almost matching the conditions of the preceding month. An average nighttime temperature of 18.8°C (65.8°F) is noted in Portão, Brazil, during the month of January.

Heat index

In January, the average heat index is computed to be a fiery hot 35°C (95°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

The average relative humidity in January is 78%.

Rainfall

The wettest months in Portão, Brazil, are January and October, with an average 30mm (1.18") of rainfall.

Daylight

In January, the average length of the day is 13h and 48min.
On the first day of January, sunrise is at 05:27 and sunset at 19:28. On the last day of the month, sunrise is at 05:52 and sunset at 19:23 -03.

Sunshine

In Portão, the average sunshine in January is 8.4h.

UV index

The months with the highest UV index in Portão are January through March, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In January, the maximum UV index of 6 transforms into these recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.