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
In September, the average high-temperature goes from a warm 23.3°C (73.9°F) in August to a refreshing 18.2°C (64.8°F). Nighttime temperature in Kostníky, Czech Republic, experiences an average drop to a frosty 9.2°C (48.6°F) in September.Humidity
The average relative humidity in September is 77%.Rainfall
In Kostníky, in September, it is raining for 12.5 days, with typically 31mm (1.22") of accumulated precipitation. In Kostníky, Czech Republic, during the entire year, the rain falls for 152.4 days and collects up to 482mm (18.98") of precipitation.Snowfall
June through September are months without snowfall in Kostníky.Daylight
In September, the average length of the day in Kostníky is 12h and 35min.On the first day of the month, sunrise is at 06:14 and sunset at 19:39. On the last day of September, sunrise is at 06:56 and sunset at 18:38 CEST.
Sunshine
In Kostníky, the average sunshine in September is 8.7h.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 unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
What are September temperatures in Kostníky?
What is the average humidity in September in Kostníky?
How many days does it rain in September in Kostníky?
When it does not snow in Kostníky?
Does it snow in Kostníky in September?
What is the average length of the day in September in Kostníky?
When is the sunrise / sunset in September in Kostníky?
How many hours of sunshine does Kostníky have in September?
What is the UV index reading in September in Kostníky?
Average temperature in September
Kostníky, Czech Republic
- Average high temperature in September: 18.2°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (0°C).
- Average low temperature in September: 9.2°C
The month with the highest average low temperature is August (13°C).
The coldest month (with the lowest average low temperature) is January (-4.7°C).
Average pressure in September
Kostníky, Czech Republic
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1019.5mbar).
The month with the lowest atmospheric pressure is June (1015.4mbar).
Average wind speed in September
Kostníky, Czech Republic
- Average wind speed in September: 11.5km/h
The windiest month (with the highest average wind speed) is December (15.3km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).
Average humidity in September
Kostníky, Czech Republic
- Average humidity in September: 77%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Kostníky, Czech Republic
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is June (77mm).
The driest month (with the least rainfall) is November (18mm).
Average rainfall days in September
Kostníky, Czech Republic
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in September
Kostníky, Czech Republic
- Average snowfall in September: 0mm
The month with the highest snowfall is January (108mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Kostníky, Czech Republic
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Kostníky, 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Kostníky, Czech Republic
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is June (7.6 days).
Average UV index in September
Kostníky, Czech Republic
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Kostníky, Czech Republic
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Kostníky, Czech Republic
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (7km).
Kostníky, Czech Republic
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