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
Weather in September
Temperature
Maria Helena, Brazil, records an average high-temperature of a still moderately hot 27.8°C (82°F) in September, maintaining a close correlation with August's 25.2°C (77.4°F). Throughout September, Maria Helena's nights cool down to an average of 16.6°C (61.9°F).Heat index
The heat index in September is estimated at a tropical 30°C (86°F). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
The least humid month is September, with an average relative humidity of 68%.Rainfall
In Maria Helena, Brazil, in September, during 10.2 rainfall days, 56mm (2.2") of precipitation is typically accumulated. In Maria Helena, during the entire year, the rain falls for 176.1 days and collects up to 1057mm (41.61") of precipitation.Daylight
In September, the average length of the day in Maria Helena is 11h and 58min.On the first day of the month, sunrise is at 06:42 and sunset at 18:22. On the last day of September, in Maria Helena, sunrise is at 06:13 and sunset at 18:31 -03.
Sunshine
In Maria Helena, the average sunshine in September is 8.8h.UV index
January through March, August through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What are September temperatures in Maria Helena?
What is the least humid month in Maria Helena?
What is the average humidity in September in Maria Helena?
How much does it rain in Maria Helena in September?
What is the average length of the day in September in Maria Helena?
When are sunrise and sunset in September in Maria Helena?
How many hours of sunshine does Maria Helena have in September?
What is the month with the highest UV index in Maria Helena?
How high is the UV index in September in Maria Helena?
Average temperature in September
Maria Helena, Brazil
- Average high temperature in September: 27.8°C
The warmest month (with the highest average high temperature) is December (29.9°C).
The month with the lowest average high temperature is June (22°C).
- Average low temperature in September: 16.6°C
The months with the highest average low temperature are January and February (20.8°C).
The coldest month (with the lowest average low temperature) is July (13.8°C).
Average pressure in September
Maria Helena, Brazil
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is July (1018.1mbar).
The month with the lowest atmospheric pressure is December (1009.5mbar).
Average wind speed in September
Maria Helena, Brazil
- Average wind speed in September: 10.4km/h
The windiest month (with the highest average wind speed) is August (11km/h).
The calmest month (with the lowest average wind speed) is March (7.5km/h).
Average humidity in September
Maria Helena, Brazil
- Average humidity in September: 68%
The month with the highest relative humidity is June (87%).
The month with the lowest relative humidity is September (68%).
Average rainfall in September
Maria Helena, Brazil
- Average rainfall in September: 56mm
The wettest month (with the highest rainfall) is January (127mm).
The driest month (with the least rainfall) is August (50mm).
Average rainfall days in September
Maria Helena, Brazil
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is January (22 days).
The month with the least rainy days is August (7.5 days).
Average daylight in September /
Average sunshine in September
Maria Helena, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 42min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 0min).
The month with the least sunshine is June (Average sunshine: 7h and 30min).
Average sunshine days in September
Maria Helena, Brazil
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is February (7 days).
Average UV index in September
Maria Helena, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, August, September, October, November and December (UV index 6).
The month with the lowest UV index is May (UV index 4).
Average cloud cover in September
Maria Helena, Brazil
- Average cloud cover in September: 25
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Maria Helena, Brazil
- Average visibility in September: 9km
The months with the highest visibility are August, September, October and November (9km).
The months with the lowest visibility are May and June (7km).
Maria Helena, Brazil
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