September weather forecastHumenné, Slovakia
September
Weather in September
September marks the start of Autumn with a gradual, but noticeable change in the overall climate compared to August. Weather conditions become more comfortable, slightly reducing the necessity of sunscreens and hats. Rainfall drops to 14mm (0.55"), providing a distinct feel of the shifting season. The number of daylight and sunlight hours starts to decrease, hinting at the shortening days of Autumn. September in Humenné offers a break from the intensity of summer, providing cooler yet fair conditions.Temperature
September's arrival in Humenné corresponds with a decrease in average high-temperatures, from August's moderately hot 26.5°C (79.7°F) to a pleasant 20.6°C (69.1°F). An average minimum temperature of 9.8°C (49.6°F) marks the month of September.Humidity
In September, the average relative humidity is 70%.Rainfall
September is the month with the least rainfall. Rain falls for 8.5 days and accumulates 14mm (0.55") of precipitation.Snowfall
May through September are months without snowfall in Humenné, Slovakia.Daylight
In Humenné, Slovakia, the average length of the day in September is 12h and 35min.On the first day of September in Humenné, sunrise is at 05:49 and sunset at 19:14. On the last day of the month, sunrise is at 06:31 and sunset at 18:13 CEST.
Sunshine
In September, the average sunshine is 9h.UV index
In September, the average daily maximum UV index in Humenné, Slovakia, is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: In September, a daily UV index of 4 turns into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Humenné, Slovakia
- Average high temperature in September: 20.6°C
The warmest month (with the highest average high temperature) is August (26.5°C).
The month with the lowest average high temperature is January (-0.5°C).
- Average low temperature in September: 9.8°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (-5.1°C).
Average pressure in September
Humenné, Slovakia
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is December (1019.7mbar).
The month with the lowest atmospheric pressure is June (1014.2mbar).
Average wind speed in September
Humenné, Slovakia
- Average wind speed in September: 8.5km/h
The windiest month (with the highest average wind speed) is March (10.4km/h).
The calmest months (with the lowest average wind speed) are August and September (8.5km/h).
Average humidity in September
Humenné, 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
Humenné, Slovakia
- Average rainfall in September: 14mm
The wettest month (with the highest rainfall) is June (50mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in September
Humenné, Slovakia
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (7.4 days).
Average snowfall in September
Humenné, Slovakia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (96mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Humenné, Slovakia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.1 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
Humenné, 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 30min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Humenné, Slovakia
- Average sunshine days in September: 19.7 days
The month with the most sunshine days is August (20.3 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in September
Humenné, 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
Humenné, Slovakia
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Humenné, Slovakia
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January and December (7km).





