January weather forecast
Mata Redonda, Brazil

January, the same as December, in Mata Redonda, Brazil, is another hot summer month, with an average temperature ranging between max 30.8°C (87.4°F) and min 23.7°C (74.7°F).

Temperature

Mata Redonda's January average high-temperature settles at a still tropical 30.8°C (87.4°F), showing a near match with the preceding month. During the nights in January, Mata Redonda experiences a consistent average temperature of 23.7°C (74.7°F).

Heat index

The heat index in January is appraised at a very hot 38°C (100.4°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In Mata Redonda, Brazil, the average relative humidity in January is 73%.

Rainfall

In Mata Redonda, in January, during 20.6 rainfall days, 38mm (1.5") of precipitation is typically accumulated. In Mata Redonda, during the entire year, the rain falls for 235.6 days and collects up to 501mm (19.72") of precipitation.

Daylight

In Mata Redonda, the average length of the day in January is 12h and 29min.
On the first day of the month, sunrise is at 05:06 and sunset at 17:39. On the last day of January, sunrise is at 05:20 and sunset at 17:45 -03.

Sunshine

In January, the average sunshine is 7.4h.

UV index

January through April, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 7 in January interprets into the following advice:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.