September weather forecastSanto Antônio do Monte, Brazil
September
Weather in September
September, the first month of the spring in Santo Antônio do Monte, is a tropical month, with an average temperature ranging between max 30.1°C (86.2°F) and min 16.6°C (61.9°F).Temperature
September, characterized by an average high temperature of 30.1°C (86.2°F) and a low temperature of 16.6°C (61.9°F), is generally the warmest month.Heat index
September's heat index is estimated at a tropical 33°C (91.4°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
With an average relative humidity of 58%, September is the least humid month.Rainfall
In September, the rain falls for 10.2 days. Throughout September, 27mm (1.06") of precipitation is accumulated. In Santo Antônio do Monte, during the entire year, the rain falls for 222.7 days and collects up to 1373mm (54.06") of precipitation.Daylight
The average length of the day in September is 11h and 59min.On the first day of the month, sunrise is at 06:09 and sunset at 17:52. On the last day of September, sunrise is at 05:42 and sunset at 17:59 -03.
Sunshine
With an average of 9.5h of sunshine, September has the most sunshine of the year.UV index
The months with the highest UV index are January, August through October, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 6 during September translates into the following directions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Santo Antônio do Monte, Brazil
- Average high temperature in September: 30.1°C
The warmest month (with the highest average high temperature) is September (30.1°C).
The month with the lowest average high temperature is June (23.8°C).
- Average low temperature in September: 16.6°C
The month with the highest average low temperature is December (18.9°C).
The coldest month (with the lowest average low temperature) is July (13.4°C).
Average pressure in September
Santo Antônio do Monte, Brazil
- Average pressure in September: 1016.8mbar
The month with the highest atmospheric pressure is July (1020.2mbar).
The month with the lowest atmospheric pressure is December (1012.5mbar).
Average wind speed in September
Santo Antônio do Monte, Brazil
- Average wind speed in September: 8.9km/h
The windiest month (with the highest average wind speed) is September (8.9km/h).
The calmest months (with the lowest average wind speed) are March and April (6.3km/h).
Average humidity in September
Santo Antônio do Monte, Brazil
- Average humidity in September: 58%
The month with the highest relative humidity is March (89%).
The month with the lowest relative humidity is September (58%).
Average rainfall in September
Santo Antônio do Monte, Brazil
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is December (247mm).
The driest months (with the least rainfall) are July and August (8mm).
Average rainfall days in September
Santo Antônio do Monte, Brazil
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is March (28.8 days).
The month with the least rainy days is August (4.8 days).
Average daylight in September /
Average sunshine in September
Santo Antônio do Monte, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is September (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in September
Santo Antônio do Monte, Brazil
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is December (1.4 days).
Average UV index in September
Santo Antônio do Monte, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, August, September and October (UV index 6).
The months with the lowest UV index are February, March, April, May, June, July, November and December (UV index 5).
Average cloud cover in September
Santo Antônio do Monte, Brazil
- Average cloud cover in September: 20
The months with the most cloud cover are March and December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
Santo Antônio do Monte, Brazil
- Average visibility in September: 10km
The months with the highest visibility are August and September (10km).
The months with the lowest visibility are January, February, March, April, May and December (7km).





