Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The onset of September results in a decrease in the average high-temperature, receding from a warm 24.9°C (76.8°F) in August to a comfortable 19.4°C (66.9°F). An average low-temperature of 10.3°C (50.5°F) is noted during the nights in September in Šumná.Humidity
In Šumná, the average relative humidity in September is 72%.Rainfall
In Šumná, in September, it is raining for 9.7 days, with typically 19mm (0.75") of accumulated precipitation. Throughout the year, there are 127.4 rainfall days, and 291mm (11.46") of precipitation is accumulated.Snowfall
In Šumná, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 35min.On the first day of the month, sunrise is at 06:13 and sunset at 19:38. On the last day of September, sunrise is at 06:55 and sunset at 18:37 CEST.
Sunshine
In September, the average sunshine is 8.9h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Be vigilant - Preventing sunburn is recommended. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
What is the average September temperature in Šumná?
What is the average humidity in September in Šumná?
How much does it rain in Šumná in September?
When it does not snow in Šumná?
Does it snow in Šumná in September?
What is the average length of the day in September in Šumná?
What time are sunrise and sunset in September in Šumná?
How many hours of sunshine does Šumná have in September?
What is the UV index reading in September in Šumná?
Average temperature in September
Šumná, Czech Republic
- 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 (0.8°C).
- Average low temperature in September: 10.3°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 (-3.9°C).
Average pressure in September
Šumná, Czech Republic
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1019.6mbar).
The month with the lowest atmospheric pressure is June (1015.3mbar).
Average wind speed in September
Šumná, Czech Republic
- Average wind speed in September: 11.4km/h
The windiest month (with the highest average wind speed) is February (14.5km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).
Average humidity in September
Šumná, Czech Republic
- Average humidity in September: 72%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Šumná, Czech Republic
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is June (54mm).
The driest month (with the least rainfall) is November (10mm).
Average rainfall days in September
Šumná, Czech Republic
- Average rainfall days in September: 9.7 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in September
Šumná, Czech Republic
- Average snowfall in September: 0mm
The month with the highest snowfall is January (53mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Šumná, Czech Republic
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Šumná, Czech Republic
- Average daylight in September: 12h and 4min
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: 8h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 3h and 48min).
Average sunshine days in September
Šumná, Czech Republic
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in September
Šumná, Czech Republic
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Šumná, Czech Republic
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Šumná, Czech Republic
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, November and December (8km).
Šumná, Czech Republic
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