September weather forecast
Radnice, Czech Republic

September

Weather in September

The first month of the autumn, September, is still a refreshing month in Radnice, Czech Republic, with temperature in the range of an average high of 18.5°C (65.3°F) and an average low of 8.8°C (47.8°F).

Temperature

September brings a decrease in the average high-temperature, falling from August's warm 23.8°C (74.8°F) to a refreshing 18.5°C (65.3°F). In September, Radnice encounters an average low-temperature of 8.8°C (47.8°F) during the night.

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Radnice, in September, it is raining for 11.9 days, with typically 27mm (1.06") of accumulated precipitation. Throughout the year, there are 156.2 rainfall days, and 398mm (15.67") of precipitation is accumulated.

Snowfall

In Radnice, snow does not fall in June through September.

Daylight

In September, the average length of the day is 12h and 37min.
On the first day of the month, sunrise is at 06:21 and sunset at 19:49. On the last day of September, sunrise is at 07:04 and sunset at 18:46 CEST.

Sunshine

In Radnice, the average sunshine in September is 9h.

UV index

In Radnice, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: In September, an average UV index of 4 transforms into the following instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

What are September temperatures in Radnice?
In Radnice, in September, the average high-temperature is 18.5°C (65.3°F), and the average low-temperature is 8.8°C (47.8°F).
What is the average humidity in September?
In September, the average relative humidity is 77%.
How many days does it rain in September?
In Radnice, during September, the rain falls for 11.9 days and regularly aggregates up to 27mm (1.06") of precipitation.
When it does not snow?
In Radnice, snow does not fall in June through September.
Does it snow in September?
In Radnice, Czech Republic, in September, it doesn't snow. In October, it regularly snows.
How many hours of daylight does Radnice have in September?
In September, the average day length in Radnice is 12h and 37min.
When is the sunrise / sunset in September?
On the first day of September in Radnice, sunrise is at 06:21 and sunset at 19:49. On the last day of the month, sunrise is at 07:04 and sunset at 18:46 CEST.
How long on average sun shines in September?
In September, the average sunshine duration is 9h.
What is the UV index reading in September?
In Radnice, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
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
Radnice, Czech Republic
  • Average high temperature in September: 18.5°C

The warmest month (with the highest average high temperature) is August (23.8°C).
The month with the lowest average high temperature is January (1°C).

  • Average low temperature in September: 8.8°C

The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is January (-4.1°C).

Average pressure in September
Radnice, Czech Republic
  • Average pressure in September: 1018.1mbar

The month with the highest atmospheric pressure is December (1018.9mbar).
The months with the lowest atmospheric pressure are July and November (1015.5mbar).

Average wind speed in September
Radnice, Czech Republic
  • Average wind speed in September: 9.5km/h

The windiest month (with the highest average wind speed) is December (13.8km/h).
The calmest month (with the lowest average wind speed) is August (9km/h).

Average humidity in September
Radnice, Czech Republic
  • Average humidity in September: 77%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (72%).

Average rainfall in September
Radnice, Czech Republic
  • Average rainfall in September: 27mm

The wettest month (with the highest rainfall) is July (61mm).
The driest month (with the least rainfall) is November (18mm).

Average rainfall days in September
Radnice, Czech Republic
  • Average rainfall days in September: 11.9 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (7.9 days).

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

The month with the highest snowfall is January (83mm).
The months with the least snowfall are June, July, August and September (0mm).

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

The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Radnice, Czech Republic
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).

  • Average sunshine in September: 9h and 0min

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 42min).

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

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is June (8.3 days).

Average UV index in September
Radnice, 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 and December (UV index 1).

Average cloud cover in September
Radnice, Czech Republic
  • Average cloud cover in September: 38

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in September
Radnice, 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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