January weather forecast
Iuiú, Brazil

January, the same as December, is another warm summer month in Iuiú, Brazil, with an average temperature fluctuating between 19.6°C (67.3°F) and 29.9°C (85.8°F).

Temperature

Shifting into January, Iuiú records an average high-temperature of a still warm 29.9°C (85.8°F), presenting minor fluctuations compared to the previous month. Nightly temperatures drop to an average low of 19.6°C (67.3°F) in January.

Heat index

For most parts of January, the heat index is computed to be a torrid 37°C (98.6°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In January, the average relative humidity in Iuiú, Brazil, is 77%.

Rainfall

In January, the rain falls for 19.2 days. Throughout January, 95mm (3.74") of precipitation is accumulated. Throughout the year, there are 145.7 rainfall days, and 748mm (29.45") of precipitation is accumulated.

Daylight

In January, the average length of the day is 12h and 52min.
On the first day of the month, sunrise is at 05:28 and sunset at 18:26. On the last day of January, in Iuiú, sunrise is at 05:45 and sunset at 18:29 -03.

Sunshine

The average sunshine in January is 9.8h.

UV index

January through July, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Iuiú. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: During January, 6 as the daily maximum UV index converts into the following advice:
Deflect overexposure. Sun protection is a necessity. 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. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.