January weather forecast
Nazaré da Mata, Brazil

January, the same as December, in Nazaré da Mata, Brazil, is another tropical summer month, with temperature in the range of an average low of 23°C (73.4°F) and an average high of 30.8°C (87.4°F).

Temperature

The beginning of January records an average high-temperature of a still tropical 30.8°C (87.4°F), almost echoing the conditions of the previous month. The average temperature drops to a moderately hot 23°C (73.4°F) during the night in the month of January.

Heat index

In January, the heat index is computed to be a very hot 38°C (100.4°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In Nazaré da Mata, the average relative humidity in January is 74%.

Rainfall

In Nazaré da Mata, Brazil, during January, the rain falls for 21.3 days and regularly aggregates up to 33mm (1.3") of precipitation. In Nazaré da Mata, during the entire year, the rain falls for 263 days and collects up to 463mm (18.23") of precipitation.

Daylight

In January, the average length of the day is 12h and 31min.
On the first day of the month, sunrise is at 05:07 and sunset at 17:41. On the last day of January, sunrise is at 05:20 and sunset at 17:47 -03.

Sunshine

The average sunshine in January is 7.6h.

UV index

January through March, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high daily UV index of 7 during January translates into the following directions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.