September weather forecast
Sulejovice, Czech Republic

September

Weather in September

September, the first month of the autumn in Sulejovice, is still a refreshing month, with an average temperature varying between 18.8°C (65.8°F) and 9.8°C (49.6°F).

Temperature

The arrival of September indicates a decrease in the average high-temperature, moving from a moderately hot 24.3°C (75.7°F) in August to an enjoyable 18.8°C (65.8°F). Nighttime temperatures in September average to a frosty 9.8°C (49.6°F) in Sulejovice, Czech Republic.

Humidity

The average relative humidity in September in Sulejovice is 75%.

Rainfall

In Sulejovice, during September, the rain falls for 12 days and regularly aggregates up to 28mm (1.1") of precipitation. Throughout the year, there are 151.5 rainfall days, and 382mm (15.04") of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day 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 Sulejovice, sunrise is at 07:03 and sunset at 18:44 CEST.

Sunshine

In September, the average sunshine is 9h.

UV index

In Sulejovice, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 4 suggests this advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. When the Sun is at its strongest around midday, find shade and limit exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.

Frequently asked questions

What is the temperature in September in Sulejovice?
September temperatures in Sulejovice vary between a high-temperature of 18.8°C (65.8°F) and a low-temperature of 9.8°C (49.6°F).
What is the average humidity in September in Sulejovice?
In September, the average relative humidity in Sulejovice is 75%.
How much does it rain in Sulejovice in September?
In September, in Sulejovice, Czech Republic, the rain falls for 12 days. Throughout September, 28mm (1.1") of precipitation is accumulated.
When it does not snow in Sulejovice?
June through September are months without snowfall in Sulejovice.
Does it snow in Sulejovice in September?
In Sulejovice, Czech Republic, in September, it doesn't snow. In October, it regularly snows.
What is the average length of the day in September in Sulejovice?
The average day length in September in Sulejovice, Czech Republic, is 12h and 37min.
What time are sunrise and sunset in September in Sulejovice?
On the first day of September in Sulejovice, 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 18:44 CEST.
How long on average sun shines in September in Sulejovice?
In Sulejovice, Czech Republic, the average sunshine duration in September is 9h.
What is the UV index intensity in September in Sulejovice?
In September, the average daily maximum UV index in Sulejovice, Czech Republic, is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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
Sulejovice, Czech Republic
  • Average high temperature in September: 18.8°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: 9.8°C

The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).

Average pressure in September
Sulejovice, 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 (1015mbar).

Average wind speed in September
Sulejovice, Czech Republic
  • Average wind speed in September: 8.8km/h

The windiest month (with the highest average wind speed) is March (11.7km/h).
The calmest month (with the lowest average wind speed) is August (8.2km/h).

Average humidity in September
Sulejovice, Czech Republic
  • Average humidity in September: 75%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (70%).

Average rainfall in September
Sulejovice, Czech Republic
  • Average rainfall in September: 28mm

The wettest month (with the highest rainfall) is August (52mm).
The driest month (with the least rainfall) is April (17mm).

Average rainfall days in September
Sulejovice, Czech Republic
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is February (7 days).

Average snowfall in September
Sulejovice, Czech Republic
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (107mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Sulejovice, Czech Republic
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Sulejovice, 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 month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in September
Sulejovice, Czech Republic
  • Average sunshine days in September: 15.3 days

The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is June (9.7 days).

Average UV index in September
Sulejovice, 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).

Average cloud cover in September
Sulejovice, Czech Republic
  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in September
Sulejovice, Czech Republic
  • Average visibility in September: 9km

The months with the highest visibility are March, April, May, June, July, August, September, October and November (9km).
The month with the lowest visibility is January (7km).

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