Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
With average high temperatures of 35.5°C (95.9°F) and lows of 21.8°C (71.2°F), September is the warmest month.Heat index
The average heat index in September is evaluated at a blistering 41°C (105.8°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.Heat index data is primarily for areas with shade and subjected to light winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
With an average relative humidity of 47%, September is the least humid month.Rainfall
In São João dos Patos, during September, the rain falls for 6.5 days and regularly aggregates up to 11mm (0.43") of precipitation. In São João dos Patos, during the entire year, the rain falls for 201.9 days and collects up to 938mm (36.93") of precipitation.Daylight
In São João dos Patos, the average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 05:54 and sunset at 17:54. On the last day of the month, sunrise is at 05:39 and sunset at 17:49 -03.
Sunshine
With an average of 9.5h of sunshine, September has the most sunshine of the year.UV index
June through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 7 suggests this advice:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year in São João dos Patos?
How hot does it get in São João dos Patos in September?
What is the least humid month in São João dos Patos?
What is the average humidity in September in São João dos Patos?
How much does it rain in São João dos Patos in September?
How many hours of daylight does São João dos Patos have in September?
When is the sunrise / sunset in September in São João dos Patos?
What month has the most sunshine in São João dos Patos?
How long on average sun shines in September in São João dos Patos?
When is the highest UV index in São João dos Patos?
What is the UV index reading in September in São João dos Patos?
Average temperature in September
São João dos Patos, Brazil
- Average high temperature in September: 35.5°C
The warmest month (with the highest average high temperature) is September (35.5°C).
The month with the lowest average high temperature is February (29.7°C).
- Average low temperature in September: 21.8°C
The month with the highest average low temperature is October (22.7°C).
The coldest month (with the lowest average low temperature) is August (20.6°C).
Average pressure in September
São João dos Patos, Brazil
- Average pressure in September: 1011.6mbar
The month with the highest atmospheric pressure is July (1013.6mbar).
The month with the lowest atmospheric pressure is November (1009.2mbar).
Average wind speed in September
São João dos Patos, Brazil
- Average wind speed in September: 9.4km/h
The windiest month (with the highest average wind speed) is July (10.3km/h).
The calmest month (with the lowest average wind speed) is March (5.2km/h).
Average humidity in September
São João dos Patos, Brazil
- Average humidity in September: 47%
The month with the highest relative humidity is March (88%).
The month with the lowest relative humidity is September (47%).
Average rainfall in September
São João dos Patos, Brazil
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is March (179mm).
The driest month (with the least rainfall) is August (3mm).
Average rainfall days in September
São João dos Patos, Brazil
- Average rainfall days in September: 6.5 days
The month with the highest number of rainy days is March (27.3 days).
The month with the least rainy days is August (2.3 days).
Average daylight in September /
Average sunshine in September
São João dos Patos, Brazil
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is September (Average sunshine: 9h and 30min).
The month with the least sunshine is April (Average sunshine: 6h and 12min).
Average sunshine days in September
São João dos Patos, Brazil
- Average sunshine days in September: 22 days
The month with the most sunshine days is August (27.1 days).
The month with the least sunshine days is March (3 days).
Average UV index in September
São João dos Patos, Brazil
- Average UV index in September: 7
The months with the highest UV index are June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May and December (UV index 6).
Average cloud cover in September
São João dos Patos, Brazil
- Average cloud cover in September: 22
The month with the most cloud cover is March (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
São João dos Patos, Brazil
- Average visibility in September: 10km
The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March and April (7km).
