September weather forecast
Ústí nad Labem, Czech Republic

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Weather in September

September marks the beginning of the transition from summer to autumn in Ústí nad Labem. Temperature drops slightly and becomes more comfortable, making it ideal for outdoor activities. The UV index reduces to 4 and daylight hours shorten. It has generally pleasant weather with reduced rainfall of 26mm (1.02"), providing a spectacular display of autumnal colors across the city. Despite the seasonal change, temperatures remain fairly warm, and there's availability of sunshine.

Temperature

The average high-temperature in Ústí nad Labem decreases in September, shifting from a moderately hot 24.3°C (75.7°F) in August to a comfortable 18.9°C (66°F). An average minimum temperature of 9.7°C (49.5°F) is recorded during the month of September.

Humidity

In Ústí nad Labem, the average relative humidity in September is 75%.

Rainfall

In Ústí nad Labem, in September, it is raining for 11.6 days, with typically 26mm (1.02") of accumulated precipitation. In Ústí nad Labem, during the entire year, the rain falls for 160.9 days and collects up to 405mm (15.94") of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Ústí nad Labem, the average length of the day in September is 12h and 37min.
On the first day of the month, sunrise is at 06:18 and sunset at 19:48. On the last day of September, in Ústí nad Labem, sunrise is at 07:03 and sunset at 18:43 CEST.

Sunshine

The average sunshine in September is 9h.

UV index

In September, the average daily maximum UV index 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: In September, a regular UV index of 4 translates into these guidelines:
Ensure safety - Sun damage prevention is strongly urged. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

What is the usual temperature for Ústí nad Labem in September?

The high-temperature in Ústí nad Labem, Czech Republic, during September is 18.9°C (66°F) and the low-temperature is 9.7°C (49.5°F).

What is the average humidity in September in Ústí nad Labem?

In September, the average relative humidity in Ústí nad Labem, Czech Republic, is 75%.

How many days does it rain in September in Ústí nad Labem?

In Ústí nad Labem, in September, it is raining for 11.6 days, with typically 26mm (1.02") of accumulated precipitation.

When it does not snow in Ústí nad Labem?

June through September are months without snowfall in Ústí nad Labem.

Does it snow in Ústí nad Labem in September?

In Ústí nad Labem, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Ústí nad Labem have in September?

In Ústí nad Labem, the average day length in September is 12h and 37min.

When is the sunrise / sunset in September in Ústí nad Labem?

On the first day of September in Ústí nad Labem, sunrise is at 06:18 and sunset at 19:48. On the last day of the month, sunrise is at 07:03 and sunset at 18:43 CEST.

How long on average sun shines in September in Ústí nad Labem?

The average sunshine duration in September in Ústí nad Labem, Czech Republic, is 9h.

What is the UV index reading in September in Ústí nad Labem?

In September, the average daily maximum UV index in Ústí nad Labem, Czech Republic, is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Ústí nad Labem, Czech Republic

Average temperature in September - Ústí nad Labem, Czech Republic
  • Average high temperature in September: 18.9°C

The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is January (0.9°C).

  • Average low temperature in September: 9.7°C

The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (-3.6°C).

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Average pressure in September
Ústí nad Labem, Czech Republic

Average pressure in September - Ústí nad Labem, Czech Republic
  • Average pressure in September: 1017.8mbar

The month with the highest atmospheric pressure is October (1018.1mbar).
The month with the lowest atmospheric pressure is July (1014.9mbar).

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Average wind speed in September
Ústí nad Labem, Czech Republic

Average wind speed in September - Ústí nad Labem, Czech Republic
  • Average wind speed in September: 8.8km/h

The windiest month (with the highest average wind speed) is December (12km/h).
The calmest month (with the lowest average wind speed) is August (8.2km/h).

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Average humidity in September
Ústí nad Labem, Czech Republic

Average humidity in September - Ústí nad Labem, Czech Republic
  • Average humidity in September: 75%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (70%).

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Average rainfall in September
Ústí nad Labem, Czech Republic

Average rainfall in September - Ústí nad Labem, Czech Republic
  • Average rainfall in September: 26mm

The wettest month (with the highest rainfall) is June (55mm).
The driest month (with the least rainfall) is April (20mm).

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Average rainfall days in September
Ústí nad Labem, Czech Republic

Average rainfall days in September - Ústí nad Labem, Czech Republic
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (9.3 days).

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Average snowfall in September
Ústí nad Labem, Czech Republic

Average snowfall in September - Ústí nad Labem, Czech Republic
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (95mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in September
Ústí nad Labem, Czech Republic

Average snowfall days in September - Ústí nad Labem, Czech Republic
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Ústí nad Labem, Czech Republic

Average daylight in September / Average sunshine in September - Ústí nad Labem, Czech Republic
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).

  • Average sunshine in September: 9h and 0min

The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in September
Ústí nad Labem, Czech Republic

Average sunshine days in September - Ústí nad Labem, Czech Republic
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is January (8.8 days).

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Average UV index in September
Ústí nad Labem, Czech Republic

Average UV index in September - Ústí nad Labem, 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 November (UV index 1).

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Average cloud cover in September
Ústí nad Labem, Czech Republic

Average cloud cover in September - Ústí nad Labem, Czech Republic
  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in September
Ústí nad Labem, Czech Republic

Average visibility in September - Ústí nad Labem, 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).

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Ústí nad Labem, Czech Republic

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