September weather forecastRio Acima, Brazil
September
Weather in September
September, the first month of the spring in Rio Acima, is also a moderately hot month, with an average temperature ranging between min 14.8°C (58.6°F) and max 26.5°C (79.7°F).Temperature
Rio Acima reaches its highest average temperatures in September, measuring 26.5°C (79.7°F) at the peak and 14.8°C (58.6°F) at the lowest.Humidity
September is the least humid month, with an average relative humidity of 70%.Rainfall
In Rio Acima, during September, the rain falls for 12.2 days and regularly aggregates up to 49mm (1.93") of precipitation. Throughout the year, there are 237 rainfall days, and 1582mm (62.28") of precipitation is accumulated.Daylight
In September, the average length of the day is 11h and 59min.On the first day of the month, sunrise is at 06:03 and sunset at 17:46. On the last day of September, sunrise is at 05:36 and sunset at 17:53 -03.
Sunshine
With an average of 9h of sunshine, September has the most sunshine of the year.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 5. January through December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rio Acima, Brazil
- Average high temperature in September: 26.5°C
The warmest month (with the highest average high temperature) is September (26.5°C).
The month with the lowest average high temperature is June (22.3°C).
- Average low temperature in September: 14.8°C
The month with the highest average low temperature is December (17.9°C).
The coldest month (with the lowest average low temperature) is July (12.5°C).
Average pressure in September
Rio Acima, Brazil
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is July (1020.9mbar).
The month with the lowest atmospheric pressure is December (1013mbar).
Average wind speed in September
Rio Acima, Brazil
- Average wind speed in September: 8.8km/h
The windiest month (with the highest average wind speed) is September (8.8km/h).
The calmest months (with the lowest average wind speed) are March, April and May (6.5km/h).
Average humidity in September
Rio Acima, Brazil
- Average humidity in September: 70%
The months with the highest relative humidity are March and April (87%).
The month with the lowest relative humidity is September (70%).
Average rainfall in September
Rio Acima, Brazil
- Average rainfall in September: 49mm
The wettest month (with the highest rainfall) is December (289mm).
The driest month (with the least rainfall) is July (10mm).
Average rainfall days in September
Rio Acima, Brazil
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is December (29.5 days).
The month with the least rainy days is August (7.5 days).
Average daylight in September /
Average sunshine in September
Rio Acima, 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 0min
The month with the most sunshine is September (Average sunshine: 9h and 0min).
The month with the least sunshine is November (Average sunshine: 6h and 48min).
Average sunshine days in September
Rio Acima, Brazil
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is August (20.3 days).
The month with the least sunshine days is December (1 days).
Average UV index in September
Rio Acima, 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
Rio Acima, Brazil
- Average cloud cover in September: 31
The months with the most cloud cover are March and December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Rio Acima, Brazil
- Average visibility in September: 9km
The months with the highest visibility are August and September (9km).
The months with the lowest visibility are January, February, March, April, May, June, November and December (7km).





