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
Mariana sees the arrival of September with an average high-temperature of a still moderately hot 25.1°C (77.2°F), indicating a subtle variation from August. An average low-temperature of 14.4°C (57.9°F) marks the nights throughout September.Humidity
The least humid month is September, with an average relative humidity of 75%.Rainfall
In Mariana, in September, during 12.7 rainfall days, 44mm (1.73") of precipitation is typically accumulated. In Mariana, Brazil, during the entire year, the rain falls for 225.6 days and collects up to 1112mm (43.78") of precipitation.Daylight
The average length of the day in September in Mariana is 11h and 59min.On the first day of the month, sunrise is at 06:01 and sunset at 17:45. On the last day of September, in Mariana, sunrise is at 05:35 and sunset at 17:51 -03.
Sunshine
September has the most sunshine of the year, with an average of 8.3h of sunshine.UV index
The months with the highest UV index in Mariana, Brazil, are January through December, with an average maximum UV index of 5. The months with the lowest UV index in Mariana, Brazil, are January through December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Mariana?
What is the least humid month in Mariana?
What is the average humidity in September in Mariana?
How many days does it rain in September in Mariana?
How many hours of daylight does Mariana have in September?
What time are sunrise and sunset in September in Mariana?
What month has the most sunshine in Mariana?
How long on average sun shines in September in Mariana?
When is the highest UV index in Mariana?
What is the month with the lowest UV index in Mariana?
What is the UV index reading in September in Mariana?
Average temperature in September
Mariana, Brazil
- Average high temperature in September: 25.1°C
The warmest months (with the highest average high temperature) are January and February (25.6°C).
The month with the lowest average high temperature is June (21.4°C).
- Average low temperature in September: 14.4°C
The month with the highest average low temperature is December (17.6°C).
The coldest month (with the lowest average low temperature) is August (12.1°C).
Average pressure in September
Mariana, Brazil
- Average pressure in September: 1018.1mbar
The month with the highest atmospheric pressure is July (1021.1mbar).
The month with the lowest atmospheric pressure is December (1013mbar).
Average wind speed in September
Mariana, Brazil
- Average wind speed in September: 7.8km/h
The windiest month (with the highest average wind speed) is September (7.8km/h).
The calmest months (with the lowest average wind speed) are April and May (5.6km/h).
Average humidity in September
Mariana, Brazil
- Average humidity in September: 75%
The month with the highest relative humidity is March (91%).
The month with the lowest relative humidity is September (75%).
Average rainfall in September
Mariana, Brazil
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is December (193mm).
The driest month (with the least rainfall) is July (13mm).
Average rainfall days in September
Mariana, Brazil
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is December (26.8 days).
The month with the least rainy days is August (8.9 days).
Average daylight in September /
Average sunshine in September
Mariana, 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: 8h and 2min
The month with the most sunshine is September (Average sunshine: 8h and 18min).
The month with the least sunshine is November (Average sunshine: 5h and 30min).
Average sunshine days in September
Mariana, Brazil
- Average sunshine days in September: 11.9 days
The month with the most sunshine days is August (16.9 days).
The month with the least sunshine days is December (2.1 days).
Average UV index in September
Mariana, Brazil
- Average UV index in September: 5
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover in September
Mariana, Brazil
- Average cloud cover in September: 40
The months with the most cloud cover are March, April and November (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Mariana, Brazil
- Average visibility in September: 8km
The months with the highest visibility are August, September and October (8km).
The months with the lowest visibility are April and May (5km).
