September weather forecastTrebejov, Slovakia
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Trebejov, Slovakia, with an average temperature varying between 10°C (50°F) and 20.4°C (68.7°F).Temperature
Transition from August to September is accompanied by a temperature drop, with average high-temperatures decreasing from a warm 26.1°C (79°F) to an agreeable 20.4°C (68.7°F). During the September nights, an average temperature of 10°C (50°F) is observed.Humidity
In Trebejov, the average relative humidity in September is 70%.Rainfall
The months with the least rainfall are January and September Rain falls for 10.7 days and accumulates 25mm (0.98") of rain.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September is 12h and 35min.On the first day of September, sunrise is at 05:52 and sunset at 19:17. On the last day of the month, sunrise is at 06:33 and sunset at 18:16 CEST.
Sunshine
In September, the average sunshine is 9.1h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Ensure safety - Sun damage prevention is strongly urged. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Trebejov, Slovakia
- Average high temperature in September: 20.4°C
The warmest month (with the highest average high temperature) is August (26.1°C).
The month with the lowest average high temperature is January (-0.5°C).
- Average low temperature in September: 10°C
The month with the highest average low temperature is August (14.1°C).
The coldest month (with the lowest average low temperature) is January (-5°C).
Average pressure in September
Trebejov, Slovakia
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is December (1019.8mbar).
The month with the lowest atmospheric pressure is June (1014.1mbar).
Average wind speed in September
Trebejov, Slovakia
- Average wind speed in September: 8.4km/h
The windiest month (with the highest average wind speed) is March (10.5km/h).
The calmest month (with the lowest average wind speed) is November (8km/h).
Average humidity in September
Trebejov, Slovakia
- Average humidity in September: 70%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
Trebejov, Slovakia
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is June (76mm).
The driest months (with the least rainfall) are January and September (25mm).
Average rainfall days in September
Trebejov, Slovakia
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is December (9.1 days).
Average snowfall in September
Trebejov, Slovakia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (117mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Trebejov, 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 May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Trebejov, 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 6min
The month with the most sunshine is August (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days in September
Trebejov, Slovakia
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is June (8.4 days).
Average UV index in September
Trebejov, Slovakia
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Trebejov, Slovakia
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Trebejov, Slovakia
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February and December (7km).





