September weather forecastBrtnička, Czech Republic
September
Weather in September
September, the first month of the autumn in Brtnička, is still a comfortable month, with an average temperature fluctuating between 18.2°C (64.8°F) and 9.2°C (48.6°F).Temperature
The commencement of September indicates a shift in the average high-temperature, receding from August's moderately hot 23.3°C (73.9°F) to an enjoyable 18.2°C (64.8°F). September nights experience a consistent temperature drop to a frosty 9.2°C (48.6°F).Humidity
The average relative humidity in September in Brtnička is 77%.Rainfall
In Brtnička, in September, it is raining for 12.5 days, with typically 31mm (1.22") of accumulated precipitation. Throughout the year, there are 152.4 rainfall days, and 482mm (18.98") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Brtnička is 12h and 36min.On the first day of the month, sunrise is at 06:14 and sunset at 19:40. On the last day of September, in Brtnička, sunrise is at 06:56 and sunset at 18:38 CEST.
Sunshine
In September, the average sunshine is 8.7h.UV index
The average daily maximum UV index in September in Brtnička is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Brtnička, 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
Brtnička, 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
Brtnička, 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
Brtnička, 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
Brtnička, 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
Brtnička, 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
Brtnička, 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
Brtnička, 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
Brtnička, 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 42min
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
Brtnička, 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
Brtnička, 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
Brtnička, 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
Brtnička, 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).





