January weather forecast
Olindina, Brazil

January, the same as December, in Olindina, Brazil, is another hot summer month, with an average temperature varying between 21.4°C (70.5°F) and 32.2°C (90°F).

Temperature

The transition into January is marked with an average high-temperature of a still tropical 32.2°C (90°F), showing an insignificant shift from December's 32.3°C (90.1°F). Throughout the nights in January, Olindina experiences an average low-temperature of 21.4°C (70.5°F).

Heat index

The heat index value during January is evaluated at a blistering 42°C (107.6°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In January, the average relative humidity is 73%.

Rainfall

In Olindina, Brazil, during January, the rain falls for 15.3 days and regularly aggregates up to 38mm (1.5") of precipitation. Throughout the year, in Olindina, there are 201.7 rainfall days, and 430mm (16.93") of precipitation is accumulated.

Daylight

The average length of the day in January in Olindina, Brazil, is 12h and 42min.
On the first day of January in Olindina, sunrise is at 05:13 and sunset at 18:00. On the last day of the month, sunrise is at 05:28 and sunset at 18:04 -03.

Sunshine

The month with the most sunshine is January, with an average of 8.9h of sunshine.

UV index

The months with the highest UV index are January through March, November and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In January, the maximum UV index of 7 translates into these guidelines:
Shun overexposure. Protection from sun ravages is indispensable. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.