September weather forecastHejná, Czech Republic
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Hejná, Czech Republic, with temperature in the range of an average high of 18.4°C (65.1°F) and an average low of 8.6°C (47.5°F).Temperature
September indicates a shift in the average high-temperature, from August's warm 23.5°C (74.3°F) to a refreshing 18.4°C (65.1°F). During September, the temperature in Hejná is averaged to a low of 8.6°C (47.5°F) at night.Humidity
In Hejná, the average relative humidity in September is 78%.Rainfall
In Hejná, in September, it is raining for 10.6 days, with typically 22mm (0.87") of accumulated precipitation. Throughout the year, there are 130.9 rainfall days, and 388mm (15.28") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Hejná.Daylight
The average length of the day in September in Hejná, Czech Republic, is 12h and 36min.On the first day of the month, sunrise is at 06:22 and sunset at 19:48. On the last day of September, sunrise is at 07:04 and sunset at 18:45 CEST.
Sunshine
The average sunshine in September in Hejná is 8.8h.UV index
In Hejná, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 4 in September leads to these guidelines:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hejná, Czech Republic
- Average high temperature in September: 18.4°C
The warmest month (with the highest average high temperature) is August (23.5°C).
The month with the lowest average high temperature is January (0.8°C).
- Average low temperature in September: 8.6°C
The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-4.3°C).
Average pressure in September
Hejná, Czech Republic
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1019.2mbar).
The months with the lowest atmospheric pressure are April, May, June and July (1015.6mbar).
Average wind speed in September
Hejná, Czech Republic
- Average wind speed in September: 9.6km/h
The windiest month (with the highest average wind speed) is December (14.3km/h).
The calmest month (with the lowest average wind speed) is August (9km/h).
Average humidity in September
Hejná, Czech Republic
- Average humidity in September: 78%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Hejná, Czech Republic
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is June (57mm).
The driest month (with the least rainfall) is November (14mm).
Average rainfall days in September
Hejná, Czech Republic
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is November (5.4 days).
Average snowfall in September
Hejná, Czech Republic
- Average snowfall in September: 0mm
The month with the highest snowfall is January (120mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Hejná, Czech Republic
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hejná, Czech Republic
- 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 48min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Hejná, Czech Republic
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is November (22.2 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in September
Hejná, Czech Republic
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Hejná, Czech Republic
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Hejná, Czech Republic
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is January (7km).
