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
September
Weather in September
Temperature
The shift from August to September corresponds with a decrease in the average high-temperature, down to a comfortable 18.4°C (65.1°F) from a warm 23.5°C (74.3°F). Chlumy, during September nights, observes an average temperature of 8.6°C (47.5°F).Humidity
In Chlumy, Czech Republic, the average relative humidity in September is 78%.Rainfall
In Chlumy, during September, the rain falls for 10.6 days and regularly aggregates up to 22mm (0.87") of precipitation. In Chlumy, during the entire year, the rain falls for 130.9 days and collects up to 388mm (15.28") of precipitation.Snowfall
June through September are months without snowfall in Chlumy, Czech Republic.Daylight
In September, the average length of the day in Chlumy, Czech Republic, is 12h and 36min.On the first day of September, sunrise is at 06:22 and sunset at 19:48. On the last day of the month, sunrise is at 07:04 and sunset at 18:46 CEST.
Sunshine
In Chlumy, the average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index in Chlumy, Czech Republic, is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Undertake protective steps - Preventing sun damage is advised. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Chlumy in September?
What is the average humidity in September in Chlumy?
How many days does it rain in September in Chlumy?
When it does not snow in Chlumy?
Does it snow in Chlumy in September?
What is the average length of the day in September in Chlumy?
When are sunrise and sunset in September in Chlumy?
How long on average sun shines in September in Chlumy?
How high is the UV index in September in Chlumy?
Average temperature in September
Chlumy, 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
Chlumy, 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
Chlumy, 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
Chlumy, 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
Chlumy, 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
Chlumy, 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
Chlumy, 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
Chlumy, 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
Chlumy, Czech Republic
- Average daylight in September: 12h and 4min
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 5min
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
Chlumy, 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
Chlumy, 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
Chlumy, 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
Chlumy, 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).
