January weather forecast
Marilac, Brazil

January, the same as December, is another warm summer month in Marilac, Brazil, with an average temperature ranging between max 29.8°C (85.6°F) and min 20.1°C (68.2°F).

Temperature

January registers an average high-temperature of a still warm 29.8°C (85.6°F), slightly varied from December's 28.8°C (83.8°F). The average nighttime temperature lowers to a pleasant 20.1°C (68.2°F) throughout January.

Heat index

For most parts of January, the heat index is appraised at a torrid 38°C (100.4°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
One should consider that heat index numbers are for shaded settings and 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 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In January, the average relative humidity is 83%.

Rainfall

In January, in Marilac, the rain falls for 19.9 days. Throughout January, 130mm (5.12") of precipitation is accumulated. Throughout the year, there are 184.4 rainfall days, and 899mm (35.39") of precipitation is accumulated.

Daylight

In Marilac, the average length of the day in January is 13h and 5min.
On the first day of January, sunrise is at 05:15 and sunset at 18:28. On the last day of the month, sunrise is at 05:33 and sunset at 18:29 -03.

Sunshine

In Marilac, the average sunshine in January is 7.5h.

UV index

The months with the highest UV index are January through May, August through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index, 6 during January, leads to the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.