September weather forecastŠtěměchy, Czech Republic
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Štěměchy, Czech Republic, with temperature in the range of an average high of 18.3°C (64.9°F) and an average low of 9.5°C (49.1°F).Temperature
The arrival of September corresponds with a temperature reduction, down from August's warm 23.7°C (74.7°F) to a comfortable 18.3°C (64.9°F). The average temperature during September nights dips to a frosty 9.5°C (49.1°F).Humidity
The average relative humidity in September in Štěměchy is 75%.Rainfall
In Štěměchy, during September, the rain falls for 12.4 days and regularly aggregates up to 34mm (1.34") of precipitation. Throughout the year, there are 169.3 rainfall days, and 504mm (19.84") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 36min.On the first day of the month, sunrise is at 06:14 and sunset at 19:39. On the last day of September, in Štěměchy, sunrise is at 06:56 and sunset at 18:37 CEST.
Sunshine
In Štěměchy, the average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September in Štěměchy is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 3 during September leads to these advisories:
Prioritize safety - Suggestions to prevent sun damage are offered. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Štěměchy, Czech Republic
- Average high temperature in September: 18.3°C
The warmest month (with the highest average high temperature) is August (23.7°C).
The month with the lowest average high temperature is January (-0.1°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (-4.4°C).
Average pressure in September
Štěměchy, Czech Republic
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1019.4mbar).
The month with the lowest atmospheric pressure is June (1015.3mbar).
Average wind speed in September
Štěměchy, Czech Republic
- Average wind speed in September: 11.4km/h
The windiest month (with the highest average wind speed) is February (15.1km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in September
Štěměchy, Czech Republic
- Average humidity in September: 75%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (71%).
Average rainfall in September
Štěměchy, Czech Republic
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is June (82mm).
The driest month (with the least rainfall) is November (24mm).
Average rainfall days in September
Štěměchy, Czech Republic
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is June (20.9 days).
The month with the least rainy days is February (9 days).
Average snowfall in September
Štěměchy, Czech Republic
- Average snowfall in September: 0mm
The month with the highest snowfall is January (131mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Štěměchy, Czech Republic
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Štěměchy, 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 August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Štěměchy, Czech Republic
- Average sunshine days in September: 15 days
The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is June (6.9 days).
Average UV index in September
Štěměchy, Czech Republic
- 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
Štěměchy, Czech Republic
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Štěměchy, Czech Republic
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The month with the lowest visibility is January (7km).
