January weather forecast
São João do Oriente, Brazil

January, like December, in São João do Oriente, Brazil, is a moderately hot summer month, with an average temperature fluctuating between 19.5°C (67.1°F) and 29°C (84.2°F).

Temperature

January brings an average high-temperature of a still warm 29°C (84.2°F), nearly identical to the preceding month. São João do Oriente experiences a mean low-temperature of 19.5°C (67.1°F) during January.

Heat index

For most parts of January, the heat index is calculated to be a fiery hot 36°C (96.8°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. 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 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

The average relative humidity in January is 84%.

Rainfall

In São João do Oriente, in January, during 16.5 rainfall days, 116mm (4.57") of precipitation is typically accumulated. Throughout the year, there are 170.4 rainfall days, and 754mm (29.69") of precipitation is accumulated.

Daylight

In São João do Oriente, Brazil, the average length of the day in January is 13h and 8min.
On the first day of the month, sunrise is at 05:13 and sunset at 18:30. On the last day of January, sunrise is at 05:32 and sunset at 18:31 -03.

Sunshine

In São João do Oriente, Brazil, the average sunshine in January is 7.5h.

UV index

The months with the highest UV index are January through May, August through October and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 6 during January leads to these instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.