January weather forecast
Arneiroz, Brazil

January, like December, is another hot summer month in Arneiroz, Brazil, with temperature in the range of an average low of 21.2°C (70.2°F) and an average high of 30.8°C (87.4°F).

Temperature

The shift from December to January is characterized by an average high-temperature of a still hot 30.8°C (87.4°F), not significantly different from the 32.2°C (90°F) of December. The nighttime temperature in Arneiroz dips to a pleasant 21.2°C (70.2°F) on average during January.

Heat index

The average heat index in January is calculated to be a fiery hot 37°C (98.6°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In January, the average relative humidity is 69%.

Rainfall

In Arneiroz, Brazil, in January, it is raining for 22.4 days, with typically 131mm (5.16") of accumulated precipitation. In Arneiroz, during the entire year, the rain falls for 155.6 days and collects up to 702mm (27.64") of precipitation.

Daylight

In January, the average length of the day in Arneiroz is 12h and 26min.
On the first day of January, sunrise is at 05:29 and sunset at 17:58. On the last day of the month, sunrise is at 05:42 and sunset at 18:05 -03.

Sunshine

In January, the average sunshine in Arneiroz is 8.5h.

UV index

The months with the lowest UV index in Arneiroz are January through July, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 6 in January converts into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.