January weather forecast
Paulista, Brazil

January, the same as December, is another warm summer month in Paulista, Brazil, with an average temperature varying between 25.1°C (77.2°F) and 29.5°C (85.1°F).

Temperature

Paulista, Brazil, experiences an average high-temperature of a still warm 29.5°C (85.1°F) in January, marking an insignificant shift from 29.1°C (84.4°F) in December. January registers an average low temperature of 25.1°C (77.2°F), subtly lower than the daytime maximum.

Heat index

In January, the heat index is estimated at a torrid 35°C (95°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In January, the average relative humidity is 75%.

Rainfall

In Paulista, in January, during 16 rainfall days, 26mm (1.02") of precipitation is typically accumulated. Throughout the year, there are 191 rainfall days, and 405mm (15.94") of precipitation is accumulated.

Sea temperature

In Paulista, the average seawater temperature in January is 28.3°C (82.9°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for all water activities, offering enjoyment without causing discomfort over extended periods.

Daylight

In Paulista, the average length of the day in January is 12h and 31min.
On the first day of January in Paulista, sunrise is at 05:05 and sunset at 17:40. On the last day of the month, sunrise is at 05:19 and sunset at 17:46 -03.

Sunshine

In January, the average sunshine in Paulista is 8.1h.

UV index

The months with the highest UV index are January through May, September through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 7 during January translates into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.