September weather forecastOstrata, Czech Republic
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Ostrata, Czech Republic, with temperature in the range of an average low of 9.5°C (49.1°F) and an average high of 19.1°C (66.4°F).Temperature
September's onset brings a reduction in the average high-temperature, from a warm 24.8°C (76.6°F) in August to a refreshing 19.1°C (66.4°F). During September, the average low-temperature is recorded at a frosty 9.5°C (49.1°F).Humidity
In Ostrata, the average relative humidity in September is 74%.Rainfall
In Ostrata, during September, the rain falls for 9.5 days and regularly aggregates up to 29mm (1.14") of precipitation. Throughout the year, in Ostrata, there are 134 rainfall days, and 394mm (15.51") of precipitation is accumulated.Snowfall
In Ostrata, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 36min.On the first day of the month, sunrise is at 06:05 and sunset at 19:31. On the last day of September, sunrise is at 06:47 and sunset at 18:29 CEST.
Sunshine
In Ostrata, the average sunshine in September is 9.1h.UV index
The average daily maximum UV index in September in Ostrata is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The UV index of 4 in September translates into these instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ostrata, Czech Republic
- Average high temperature in September: 19.1°C
The warmest month (with the highest average high temperature) is August (24.8°C).
The month with the lowest average high temperature is January (-0.3°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (-4.8°C).
Average pressure in September
Ostrata, Czech Republic
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is December (1019.4mbar).
The months with the lowest atmospheric pressure are June and July (1014.8mbar).
Average wind speed in September
Ostrata, Czech Republic
- Average wind speed in September: 9.3km/h
The windiest month (with the highest average wind speed) is March (12.3km/h).
The calmest month (with the lowest average wind speed) is August (8.5km/h).
Average humidity in September
Ostrata, Czech Republic
- Average humidity in September: 74%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Ostrata, Czech Republic
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is May (49mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Ostrata, Czech Republic
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is February (8 days).
Average snowfall in September
Ostrata, Czech Republic
- Average snowfall in September: 0mm
The month with the highest snowfall is January (142mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Ostrata, Czech Republic
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ostrata, 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: 9h and 6min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Ostrata, Czech Republic
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is August (18.9 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in September
Ostrata, Czech Republic
- Average UV index in September: 4
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, November and December (UV index 2).
Average cloud cover in September
Ostrata, Czech Republic
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Ostrata, 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).
