January weather forecast
Marabá, Brazil

January, like December, is another tropical summer month in Marabá, Brazil, with an average temperature fluctuating between 30.4°C (86.7°F) and 22.1°C (71.8°F).

Temperature

The advent of January brings an average high-temperature of a still hot 30.4°C (86.7°F), exhibiting minor difference from the previous month. Throughout January, an average nighttime temperature of 22.1°C (71.8°F) is experienced in Marabá, Brazil.

Heat index

The heat index value during January is calculated to be a blistering 42°C (107.6°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In January, the average relative humidity is 88%.

Rainfall

In Marabá, during January, the rain falls for 30.3 days and regularly aggregates up to 232mm (9.13") of precipitation. Throughout the year, in Marabá, there are 250.8 rainfall days, and 1478mm (58.19") of precipitation is accumulated.

Daylight

In Marabá, the average length of the day in January is 12h and 23min.
On the first day of the month, sunrise is at 06:07 and sunset at 18:32. On the last day of January, sunrise is at 06:19 and sunset at 18:40 -03.

Sunshine

In Marabá, the average sunshine in January is 6.6h.

UV index

The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 6 during January leads to these advisories:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.