September weather forecast
Tauá, Brazil

September, the first month of the spring in Tauá, is still a hot month, with an average temperature varying between 33.5°C (92.3°F) and 21°C (69.8°F).

Temperature

Welcoming September, Tauá notes an average high-temperature of a still tropical 33.5°C (92.3°F), nearly consistent with August's 32.3°C (90.1°F). Tauá endures a clear shift from daytime heat to a mean low-temperature of 21°C (69.8°F) during September nights.

Heat index

September's heat index is estimated at a fiery hot 37°C (98.6°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
In terms of the heat index, values are set with light wind and shade conditions in mind. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

September is the least humid month, with an average relative humidity of 48%.

Rainfall

September is the month with the least rainfall in Tauá. Rain falls for 3.5 days and accumulates 2mm (0.08") of precipitation.

Daylight

In Tauá, the average length of the day in September is 12h and 5min.
On the first day of the month, sunrise is at 05:40 and sunset at 17:41. On the last day of September, sunrise is at 05:26 and sunset at 17:35 -03.

Sunshine

With an average of 9.5h of sunshine, September has the most sunshine of the year in Tauá.

UV index

The months with the highest UV index in Tauá are August through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 7 in September translates into this advice:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Enhance your sun protection with tightly woven, yet airy clothing.