September weather forecastMonte Alto, Brazil
September weather for Monte Alto, Brazil: The months with the lowest humidity in Monte Alto, Brazil, are August and September, with an average relative humidity of 55%. The first month of the spring, September, is a hot month in Monte Alto, Brazil, with an average temperature varying between 30.6°C (87.1°F) and 18.3°C (64.9°F).
September
Weather in September
The first month of the spring, September, is a hot month in Monte Alto, Brazil, with an average temperature varying between 30.6°C (87.1°F) and 18.3°C (64.9°F).Temperature
Monte Alto's warmest month, September, registers temperatures that range from a high of 30.6°C (87.1°F) to a low of 18.3°C (64.9°F).Heat index
The heat index for September is evaluated at a hot 33°C (91.4°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Consider that heat index readings are for situations in the shade and light wind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 55%.Rainfall
In September, in Monte Alto, the rain falls for 9.7 days. Throughout September, 42mm (1.65") of precipitation is accumulated. In Monte Alto, during the entire year, the rain falls for 217.6 days and collects up to 1401mm (55.16") of precipitation.Daylight
In Monte Alto, the average length of the day in September is 11h and 59min.On the first day of the month, sunrise is at 06:22 and sunset at 18:05. On the last day of September, in Monte Alto, sunrise is at 05:55 and sunset at 18:12 -03.
Sunshine
The months with the most sunshine in Monte Alto are August and September, with an average of 9.3h of sunshine.UV index
January, July through October, with an average maximum UV index of 6, are months with the highest UV index in Monte Alto. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 6 during September translates into the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Monte Alto, Brazil
- Average high temperature in September: 30.6°C
The warmest month (with the highest average high temperature) is September (30.6°C).
The month with the lowest average high temperature is June (24°C).
- Average low temperature in September: 18.3°C
The month with the highest average low temperature is December (20.5°C).
The coldest month (with the lowest average low temperature) is June (14.8°C).
Average pressure in September
Monte Alto, Brazil
- Average pressure in September: 1014.8mbar
The month with the highest atmospheric pressure is July (1018.7mbar).
The month with the lowest atmospheric pressure is December (1010.8mbar).
Average wind speed in September
Monte Alto, Brazil
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is August (10.5km/h).
The calmest month (with the lowest average wind speed) is February (7.4km/h).
Average humidity in September
Monte Alto, Brazil
- Average humidity in September: 55%
The month with the highest relative humidity is March (87%).
The months with the lowest relative humidity are August and September (55%).
Average rainfall in September
Monte Alto, Brazil
- Average rainfall in September: 42mm
The wettest month (with the highest rainfall) is January (259mm).
The driest month (with the least rainfall) is July (10mm).
Average rainfall days in September
Monte Alto, Brazil
- Average rainfall days in September: 9.7 days
The months with the highest number of rainy days are January and December (29.5 days).
The month with the least rainy days is August (3.8 days).
Average daylight in September /
Average sunshine in September
Monte Alto, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in September: 9h and 18min
The months with the most sunshine are August and September (Average sunshine: 9h and 18min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).
Average sunshine days in September
Monte Alto, Brazil
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is August (26.6 days).
The months with the least sunshine days are February and December (1.1 days).
Average UV index in September
Monte Alto, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, July, August, September and October (UV index 6).
The months with the lowest UV index are February, March, April, May, June, November and December (UV index 5).
Average cloud cover in September
Monte Alto, Brazil
- Average cloud cover in September: 20
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Monte Alto, Brazil
- Average visibility in September: 10km
The months with the highest visibility are July, August and September (10km).
The months with the lowest visibility are January and March (7km).





