September weather forecast
Dona Inês, Brazil

September, the first month of the spring in Dona Inês, is still a warm month, with an average temperature varying between 19.8°C (67.6°F) and 29.5°C (85.1°F).

Temperature

With the advent of September, Dona Inês's high-temperatures adjust to a still warm 29.5°C (85.1°F), closely aligning with the preceding month. An average low-temperature of 19.8°C (67.6°F) is noted during the nights in September in Dona Inês.

Heat index

Throughout September, the heat index is calculated to be a sweltering 36°C (96.8°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In September, the average relative humidity is 78%.

Rainfall

In Dona Inês, in September, it is raining for 15.2 days, with typically 14mm (0.55") of accumulated precipitation. Throughout the year, there are 205.7 rainfall days, and 444mm (17.48") of precipitation is accumulated.

Daylight

In September, the average length of the day in Dona Inês is 12h and 4min.
On the first day of the month, sunrise is at 05:22 and sunset at 17:22. On the last day of September, in Dona Inês, sunrise is at 05:07 and sunset at 17:17 -03.

Sunshine

The average sunshine in September is 6.3h.

UV index

March through September, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.