January weather forecast
Surubim, Brazil

January, like December, is another tropical summer month in Surubim, Brazil, with temperature in the range of an average high of 31°C (87.8°F) and an average low of 21.5°C (70.7°F).

Temperature

The shift into January records an average high-temperature of a still tropical 31°C (87.8°F), subtly varied from December's 30.8°C (87.4°F). Surubim's average low-temperature for the month of January records at a pleasant 21.5°C (70.7°F).

Heat index

January's average heat index is computed to be a torrid 39°C (102.2°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly important for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In Surubim, the average relative humidity in January is 73%.

Rainfall

In Surubim, during January, the rain falls for 17.3 days and regularly aggregates up to 36mm (1.42") of precipitation. In Surubim, Brazil, during the entire year, the rain falls for 203.9 days and collects up to 339mm (13.35") of precipitation.

Daylight

The average length of the day in January in Surubim is 12h and 31min.
On the first day of the month, sunrise is at 05:09 and sunset at 17:43. On the last day of January, in Surubim, sunrise is at 05:22 and sunset at 17:49 -03.

Sunshine

The average sunshine in January in Surubim, Brazil, is 7.2h.

UV index

The average daily maximum UV index in January in Surubim is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 6 during January translates into these guidelines:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.