September weather forecast
Matias Olímpio, Brazil

The first month of the spring, September, is a sweltering month in Matias Olímpio, Brazil, with an average temperature varying between 22.5°C (72.5°F) and 36.7°C (98.1°F).

Temperature

Matias Olímpio's average high-temperature in September is a torrid 36.7°C (98.1°F), indicating a subtle variation from August. A striking departure from daytime highs to an average low-temperature of 22.5°C (72.5°F) is witnessed during September.

Heat index

The heat index value during September is computed to be a blazing hot 51°C (123.8°F). Attention: Heat exhaustion and heat cramps are quite likely. Heatstroke becomes a risk with continued exertion.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

September and October, with an average relative humidity of 61%, are the least humid months.

Rainfall

September is the month with the least rainfall in Matias Olímpio. Rain falls for 4.6 days and accumulates 4mm (0.16") of precipitation.

Daylight

In Matias Olímpio, the average length of the day in September is 12h and 5min.
On the first day of the month, sunrise is at 05:48 and sunset at 17:51. On the last day of September, sunrise is at 05:35 and sunset at 17:44 -03.

Sunshine

September has the most sunshine of the year, with an average of 9.7h of sunshine.

UV index

January, April through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.