September weather forecast
Janduís, Brazil

The first month of the spring, September, is still a hot month in Janduís, Brazil, with temperature in the range of an average low of 22.3°C (72.1°F) and an average high of 34.5°C (94.1°F).

Temperature

Janduís, Brazil, measures an average high-temperature of a still hot 34.5°C (94.1°F) in September, nearly consistent with the preceding month. A pronounced dip becomes evident during the nights in September as Janduís logs a consistent average temperature of 22.3°C (72.1°F).

Heat index

For September, the heat index is calculated to be a blisteringly hot 40°C (104°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In September, the average relative humidity in Janduís is 52%.

Rainfall

August and September are months with the least rain in Janduís when the rain falls for 0.9 days and typically aggregates up to 1mm (0.04") of rain.

Daylight

In Janduís, the average length of the day in September is 12h and 5min.
On the first day of September in Janduís, sunrise is at 05:29 and sunset at 17:29. On the last day of the month, sunrise is at 05:14 and sunset at 17:24 -03.

Sunshine

With an average of 9.8h of sunshine, September has the most sunshine of the year in Janduís, Brazil.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Janduís. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 7 transforms into these recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended.