September weather forecastBystrany, Slovakia
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Bystrany, Slovakia, with temperature in the range of an average low of 8°C (46.4°F) and an average high of 18°C (64.4°F).Temperature
As Bystrany enters September, the average high-temperature decreases from the a moderately hot 23.4°C (74.1°F) of August to a refreshing 18°C (64.4°F). Bystrany, during September nights, observes an average temperature of 8°C (46.4°F).Humidity
The average relative humidity in September is 75%.Rainfall
In September, in Bystrany, the rain falls for 9.3 days. Throughout September, 24mm (0.94") of precipitation is accumulated. In Bystrany, during the entire year, the rain falls for 127.7 days and collects up to 367mm (14.45") of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Bystrany, the average length of the day in September is 12h and 35min.On the first day of the month, sunrise is at 05:54 and sunset at 19:19. On the last day of September, in Bystrany, sunrise is at 06:35 and sunset at 18:17 CEST.
Sunshine
In Bystrany, the average sunshine in September is 9h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 3 in September transforms into this advice:
Guard yourself - Avoiding sunburn is suggested. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bystrany, Slovakia
- Average high temperature in September: 18°C
The warmest month (with the highest average high temperature) is August (23.4°C).
The month with the lowest average high temperature is January (-1°C).
- Average low temperature in September: 8°C
The month with the highest average low temperature is August (11.7°C).
The coldest month (with the lowest average low temperature) is January (-6.7°C).
Average pressure in September
Bystrany, Slovakia
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is December (1019.6mbar).
The month with the lowest atmospheric pressure is June (1014.2mbar).
Average wind speed in September
Bystrany, Slovakia
- Average wind speed in September: 7.8km/h
The windiest month (with the highest average wind speed) is March (9.8km/h).
The calmest month (with the lowest average wind speed) is August (7.4km/h).
Average humidity in September
Bystrany, Slovakia
- Average humidity in September: 75%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Bystrany, Slovakia
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is July (58mm).
The driest month (with the least rainfall) is January (15mm).
Average rainfall days in September
Bystrany, Slovakia
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in September
Bystrany, Slovakia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (95mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Bystrany, Slovakia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bystrany, Slovakia
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in September
Bystrany, Slovakia
- Average sunshine days in September: 19 days
The month with the most sunshine days is September (19 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in September
Bystrany, Slovakia
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Bystrany, Slovakia
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Bystrany, Slovakia
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).





