January weather forecast
Passo, Brazil

January, like December, is another hot summer month in Passo, Brazil, with an average temperature varying between 20.8°C (69.4°F) and 32.3°C (90.1°F).

Temperature

The warmest period is January, when temperatures fluctuate between an average high of 32.3°C (90.1°F) and a low of 20.8°C (69.4°F).

Heat index

For most parts of January, the heat index is evaluated at an extremely hot 41°C (105.8°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

The months with the lowest humidity are January and December, with an average relative humidity of 69%.

Rainfall

In Passo, in January, it is raining for 14.9 days, with typically 98mm (3.86") of accumulated precipitation. In Passo, during the entire year, the rain falls for 141.1 days and collects up to 970mm (38.19") of precipitation.

Daylight

In January, the average length of the day is 13h and 43min.
On the first day of January, sunrise is at 05:49 and sunset at 19:45. On the last day of the month, sunrise is at 06:13 and sunset at 19:41 -03.

Sunshine

In January, the average sunshine is 8.8h.

UV index

The months with the highest UV index are January and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In January, the maximum UV index of 7 suggests these recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.