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
São Bonifácio experiences an average high-temperature of a pleasant 20.5°C (68.9°F) with the onset of September, subtly varied from August's 19.8°C (67.6°F). During September, São Bonifácio experiences a consistent low-temperature average of 15.3°C (59.5°F).Humidity
January, September, October and December, with an average relative humidity of 83%, are the most humid months.Rainfall
In São Bonifácio, during September, the rain falls for 13.8 days and regularly aggregates up to 75mm (2.95") of precipitation. Throughout the year, there are 184.1 rainfall days, and 862mm (33.94") of precipitation is accumulated.Daylight
The average length of the day in September is 11h and 56min.On the first day of September, sunrise is at 06:28 and sunset at 18:02. On the last day of the month, sunrise is at 05:54 and sunset at 18:16 -03.
Sunshine
In São Bonifácio, the average sunshine in September is 7.4h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum UV index of 5 in September translates into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for São Bonifácio in September?
What is the most humid month in São Bonifácio?
What is the average humidity in September in São Bonifácio?
How much does it rain in São Bonifácio in September?
How many hours of daylight does São Bonifácio have in September?
When are sunrise and sunset in September in São Bonifácio?
How long on average sun shines in September in São Bonifácio?
What is the UV index intensity in September in São Bonifácio?
Average temperature in September
São Bonifácio, Brazil
- Average high temperature in September: 20.5°C
The warmest month (with the highest average high temperature) is February (26.8°C).
The month with the lowest average high temperature is July (18.8°C).
- Average low temperature in September: 15.3°C
The month with the highest average low temperature is February (21.8°C).
The coldest month (with the lowest average low temperature) is July (13.7°C).
Average pressure in September
São Bonifácio, Brazil
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is July (1020.2mbar).
The month with the lowest atmospheric pressure is December (1012.2mbar).
Average wind speed in September
São Bonifácio, Brazil
- Average wind speed in September: 16km/h
The windiest month (with the highest average wind speed) is August (16.5km/h).
The calmest month (with the lowest average wind speed) is March (13km/h).
Average humidity in September
São Bonifácio, Brazil
- Average humidity in September: 83%
The months with the highest relative humidity are January, September, October and December (83%).
The months with the lowest relative humidity are April, June and July (81%).
Average rainfall in September
São Bonifácio, Brazil
- Average rainfall in September: 75mm
The wettest month (with the highest rainfall) is May (92mm).
The driest month (with the least rainfall) is November (50mm).
Average rainfall days in September
São Bonifácio, Brazil
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is March (18.2 days).
The month with the least rainy days is June (12.3 days).
Average daylight in September /
Average sunshine in September
São Bonifácio, Brazil
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 13h and 54min).
The month with the shortest days is June (Average daylight: 10h and 24min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is April (Average sunshine: 7h and 54min).
The month with the least sunshine is October (Average sunshine: 7h and 18min).
Average sunshine days in September
São Bonifácio, Brazil
- Average sunshine days in September: 12.8 days
The month with the most sunshine days is June (16 days).
The month with the least sunshine days is February (9.5 days).
Average UV index in September
São Bonifácio, Brazil
- Average UV index in September: 5
The months with the highest UV index are January, February, March and December (UV index 6).
The month with the lowest UV index is July (UV index 4).
Average cloud cover in September
São Bonifácio, Brazil
- Average cloud cover in September: 40
The month with the most cloud cover is October (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 33).
Average visibility in September
São Bonifácio, Brazil
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, November and December (10km).
The months with the lowest visibility are September and October (9km).
