September weather forecastBoninal, Brazil
September
Weather in September
September, the first month of the spring in Boninal, is also a moderately hot month, with an average temperature varying between 15.4°C (59.7°F) and 26.8°C (80.2°F).Temperature
The transition from August to September brings an average high-temperature of a still moderately hot 26.8°C (80.2°F), barely different from August's 25.1°C (77.2°F). The average temperature drops to a refreshing 15.4°C (59.7°F) during the night in the month of September.Humidity
September and October, with an average relative humidity of 69%, are the least humid months.Rainfall
In Boninal, in September, during 12.1 rainfall days, 11mm (0.43") of precipitation is typically accumulated. In Boninal, Brazil, during the entire year, the rain falls for 210.2 days and collects up to 693mm (27.28") of precipitation.Daylight
The average length of the day in September is 12h and 2min.On the first day of the month, sunrise is at 05:50 and sunset at 17:43. On the last day of September, in Boninal, sunrise is at 05:30 and sunset at 17:43 -03.
Sunshine
The average sunshine in September in Boninal, Brazil, is 7.8h.UV index
The months with the highest UV index are January through April, September through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 6 in September suggests the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Boninal, Brazil
- Average high temperature in September: 26.8°C
The warmest month (with the highest average high temperature) is March (28°C).
The month with the lowest average high temperature is July (23.9°C).
- Average low temperature in September: 15.4°C
The month with the highest average low temperature is November (18°C).
The coldest months (with the lowest average low temperature) are July and August (14.3°C).
Average pressure in September
Boninal, Brazil
- Average pressure in September: 1016.4mbar
The month with the highest atmospheric pressure is July (1018.4mbar).
The month with the lowest atmospheric pressure is November (1012.3mbar).
Average wind speed in September
Boninal, Brazil
- Average wind speed in September: 17.5km/h
The windiest month (with the highest average wind speed) is September (17.5km/h).
The calmest month (with the lowest average wind speed) is March (11.7km/h).
Average humidity in September
Boninal, Brazil
- Average humidity in September: 69%
The months with the highest relative humidity are April and May (81%).
The months with the lowest relative humidity are September and October (69%).
Average rainfall in September
Boninal, Brazil
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is November (119mm).
The driest month (with the least rainfall) is August (8mm).
Average rainfall days in September
Boninal, Brazil
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is January (22.3 days).
The months with the least rainy days are July and September (12.1 days).
Average daylight in September /
Average sunshine in September
Boninal, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 12h and 54min).
The month with the shortest days is June (Average daylight: 11h and 24min).
- Average sunshine in September: 7h and 48min
The months with the most sunshine are January and December (Average sunshine: 8h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).
Average sunshine days in September
Boninal, Brazil
- Average sunshine days in September: 7.5 days
The month with the most sunshine days is September (7.5 days).
The month with the least sunshine days is April (3.8 days).
Average UV index in September
Boninal, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, September, October, November and December (UV index 6).
The months with the lowest UV index are May, June, July and August (UV index 5).
Average cloud cover in September
Boninal, Brazil
- Average cloud cover in September: 40
The month with the most cloud cover is May (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 40).
Average visibility in September
Boninal, Brazil
- Average visibility in September: 9km
The months with the highest visibility are February, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, March, April and May (8km).





