January weather forecast
Santana da Boa Vista, Brazil

January, like December, in Santana da Boa Vista, Brazil, is a moderately hot summer month, with an average temperature fluctuating between 18.3°C (64.9°F) and 29.8°C (85.6°F).

Temperature

Santana da Boa Vista transitions into January recording an average high-temperature of a still warm 29.8°C (85.6°F), closely aligning with the preceding month's temperature. In Santana da Boa Vista, January's nights observe an average temperature dip to a comfortable 18.3°C (64.9°F).

Heat index

In January, the heat index is appraised at a torrid 35°C (95°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In Santana da Boa Vista, the average relative humidity in January is 73%.

Rainfall

January is the month with the most rainfall in Santana da Boa Vista. Rain falls for 16.4 days and accumulates 112mm (4.41") of precipitation.

Daylight

In January, the average length of the day in Santana da Boa Vista, Brazil, is 13h and 53min.
On the first day of January, sunrise is at 05:32 and sunset at 19:39. On the last day of the month, sunrise is at 05:58 and sunset at 19:33 -03.

Sunshine

In January, the average sunshine is 8h.

UV index

January through March and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 6 in January, converts into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.