September weather forecastHertník, Slovakia
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Hertník, Slovakia, with temperature in the range of an average high of 19.4°C (66.9°F) and an average low of 8.9°C (48°F).Temperature
Welcoming September, Hertník observes a shift in the average high-temperature, falling from August's moderately hot 24.9°C (76.8°F) to a comfortable 19.4°C (66.9°F). In the month of September, the nighttime temperature in Hertník, Slovakia, dips to a steady average of 8.9°C (48°F).Humidity
In Hertník, the average relative humidity in September is 73%.Rainfall
In Hertník, during September, the rain falls for 11.4 days and regularly aggregates up to 28mm (1.1") of precipitation. Throughout the year, there are 144.3 rainfall days, and 452mm (17.8") of precipitation is accumulated.Snowfall
In Hertník, snow does not fall in May through September.Daylight
In September, the average length of the day in Hertník is 12h and 36min.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 18:15 CEST.
Sunshine
In September, the average sunshine in Hertník, Slovakia, is 8.9h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 3 during September leads to these advisories:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hertník, Slovakia
- Average high temperature in September: 19.4°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (-1.2°C).
- Average low temperature in September: 8.9°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is January (-5.8°C).
Average pressure in September
Hertník, Slovakia
- Average pressure in September: 1017.6mbar
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
Hertník, Slovakia
- Average wind speed in September: 8.3km/h
The windiest month (with the highest average wind speed) is March (10.3km/h).
The calmest month (with the lowest average wind speed) is August (8.2km/h).
Average humidity in September
Hertník, Slovakia
- Average humidity in September: 73%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Hertník, Slovakia
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is July (71mm).
The driest month (with the least rainfall) is January (22mm).
Average rainfall days in September
Hertník, Slovakia
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in September
Hertník, Slovakia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (106mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Hertník, Slovakia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 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
Hertník, Slovakia
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Hertník, Slovakia
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in September
Hertník, Slovakia
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Hertník, Slovakia
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Hertník, 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, February and December (7km).
