September weather forecast
Bonito de Santa Fé, Brazil

The first month of the spring, September, is still a tropical month in Bonito de Santa Fé, Brazil, with an average temperature varying between 19.4°C (66.9°F) and 32.9°C (91.2°F).

Temperature

The high-temperature average in September for Bonito de Santa Fé is a still hot 32.9°C (91.2°F), staying closely aligned with August's conditions. Bonito de Santa Fé records a marked daily temperature contrast, with an average low-temperature of 19.4°C (66.9°F) during the nights of September.

Heat index

The heat index value during September is computed to be a very hot 37°C (98.6°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Factoring in the heat index, values are geared towards shaded areas with light breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In September, the average relative humidity is 52%.

Rainfall

August and September are months with the least rain in Bonito de Santa Fé when the rain falls for 2.7 days and typically aggregates up to 2mm (0.08") of rain.

Daylight

In Bonito de Santa Fé, the average length of the day in September is 12h and 4min.
On the first day of September in Bonito de Santa Fé, sunrise is at 05:34 and sunset at 17:33. On the last day of the month, sunrise is at 05:18 and sunset at 17:28 -03.

Sunshine

The month with the most sunshine is September, with an average of 9.7h of sunshine.

UV index

The months with the highest UV index are 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 radiation for average individuals.
Note: In September, the maximum UV index of 7 suggests these recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.