January weather forecast
Aratuba, Brazil

January, the same as December, in Aratuba, Brazil, is a hot summer month, with an average temperature varying between 22.3°C (72.1°F) and 31.5°C (88.7°F).

Temperature

A minimal variation is noted in Aratuba's average high-temperature at the onset of January, reaching a still hot 31.5°C (88.7°F) from December's 32.6°C (90.7°F). The mean low-temperature during January nights is a pleasant 22.3°C (72.1°F).

Heat index

January's heat index is computed to be an extremely hot 40°C (104°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in January is 73%.

Rainfall

In Aratuba, during January, the rain falls for 21.5 days and regularly aggregates up to 105mm (4.13") of precipitation. Throughout the year, there are 177 rainfall days, and 691mm (27.2") of precipitation is accumulated.

Daylight

The average length of the day in January is 12h and 20min.
On the first day of the month, sunrise is at 05:28 and sunset at 17:50. On the last day of January, sunrise is at 05:40 and sunset at 17:58 -03.

Sunshine

In January, the average sunshine is 6.7h.

UV index

The months with the lowest UV index are January through July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 in January converts into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.