September weather forecastSão Borja, Brazil
September
Weather in September
The first month of the spring, September, is a warm month in São Borja, Brazil, with an average temperature varying between 13.4°C (56.1°F) and 23.8°C (74.8°F).Temperature
The arrival of September coincides with an average high-temperature of a moderately hot 23.8°C (74.8°F), indicating a minimal shift from August's 21.5°C (70.7°F). São Borja observes an average low-temperature of 13.4°C (56.1°F) during September.Humidity
In September, the average relative humidity in São Borja is 78%.Rainfall
In São Borja, in September, during 10.6 rainfall days, 62mm (2.44") of precipitation is typically accumulated. In São Borja, during the entire year, the rain falls for 141.1 days and collects up to 970mm (38.19") of precipitation.Daylight
The average length of the day in September is 11h and 56min.On the first day of September in São Borja, sunrise is at 06:57 and sunset at 18:30. On the last day of the month, sunrise is at 06:22 and sunset at 18:44 -03.
Sunshine
In São Borja, Brazil, the average sunshine in September is 7.9h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 5 in September leads to these guidelines:
Guard yourself - Precautionary measures against sun damage are advocated. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
São Borja, Brazil
- Average high temperature in September: 23.8°C
The warmest month (with the highest average high temperature) is January (32.3°C).
The month with the lowest average high temperature is July (18.6°C).
- Average low temperature in September: 13.4°C
The month with the highest average low temperature is January (20.8°C).
The coldest month (with the lowest average low temperature) is July (10.2°C).
Average pressure in September
São Borja, Brazil
- Average pressure in September: 1015.2mbar
The month with the highest atmospheric pressure is July (1018.5mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in September
São Borja, Brazil
- Average wind speed in September: 11.6km/h
The windiest month (with the highest average wind speed) is August (12.1km/h).
The calmest month (with the lowest average wind speed) is April (9.3km/h).
Average humidity in September
São Borja, Brazil
- Average humidity in September: 78%
The month with the highest relative humidity is June (86%).
The months with the lowest relative humidity are January and December (69%).
Average rainfall in September
São Borja, Brazil
- Average rainfall in September: 62mm
The wettest month (with the highest rainfall) is October (116mm).
The driest month (with the least rainfall) is August (42mm).
Average rainfall days in September
São Borja, Brazil
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is January (14.9 days).
The month with the least rainy days is August (9.3 days).
Average daylight in September /
Average sunshine in September
São Borja, Brazil
- Average daylight in September: 11h and 54min
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 18min).
- Average sunshine in September: 7h and 54min
The months with the most sunshine are November and December (Average sunshine: 8h and 54min).
The month with the least sunshine is June (Average sunshine: 6h and 54min).
Average sunshine days in September
São Borja, Brazil
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is August (20.7 days).
The month with the least sunshine days is February (14 days).
Average UV index in September
São Borja, Brazil
- Average UV index in September: 5
The months with the highest UV index are January and December (UV index 7).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in September
São Borja, Brazil
- Average cloud cover in September: 34
The month with the most cloud cover is May (Cloud cover 43).
The month with the least cloud cover is November (Cloud cover 25).
Average visibility in September
São Borja, Brazil
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, August, September, October, November and December (9km).
The months with the lowest visibility are May, June and July (8km).





