September weather - Autumn 2024 - Prague, Czech Republic

Weather in September
Frequently asked questions
Average temperature in September
Average humidity in September
Average rainfall in September
Average rainfall days in September
Average snowfall in September
Average daylight in September
Average sunshine in September
Average UV index in September

Multiple bridges over water in Prague, in the Czech Republic

Weather in September

September signifies the gradual transition from summer to autumn, with temperatures dropping to 19°C (66.2°F). This month is characterized by declining rainfall levels to 40mm (1.57"), marking a pattern of reduced precipitation. The landscape starts to bloom with russets and golds reflecting the onset of fall. The weather strikes an appropriate balance between warm days and cool evenings. To conclude, the major characteristic of September weather in Prague is the commencement of the stunning fall season.

Temperature

September ushers in a minor alteration in Prague's climate, with the average high-temperature moving from August's warm 23°C (73.4°F) to a refreshing 19°C (66.2°F). In September, the average low-temperature is a frosty 8.7°C (47.7°F).

Humidity

The average relative humidity in September is 77%.

Rainfall

In September, in Prague, the rain falls for 7 days. Throughout September, 40mm (1.57") of precipitation is accumulated. Throughout the year, there are 90.2 rainfall days, and 526mm (20.71") of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Prague.

Daylight

In Prague, Czech Republic, the average length of the day in September is 12h and 37min.
On the first day of the month, sunrise is at 06:17 and sunset at 19:46. On the last day of September, sunrise is at 07:01 and sunset at 18:42 CEST.

Sunshine

In September, the average sunshine in Prague, Czech Republic, is 5.4h.

UV index

In Prague, the average daily maximum UV index in September 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 ordinary person.
Note: In September, the maximum UV index of 4 suggests this advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

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Frequently asked questions

What are September temperatures in Prague?

In Prague, in September, the average high-temperature is 19°C (66.2°F), and the average low-temperature is 8.7°C (47.7°F).

What is the average humidity in September in Prague?

In Prague, the average relative humidity in September is 77%.

How much does it rain in Prague in September?

In Prague, in September, it is raining for 7 days, with typically 40mm (1.57") of accumulated precipitation.

When it does not snow in Prague?

In Prague, snow does not fall in May through September.

Does it snow in Prague in September?

In Prague, Czech Republic, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Prague have in September?

In Prague, Czech Republic, the average day length in September is 12h and 37min.

What time are sunrise and sunset in September in Prague?

On the first day of September in Prague, Czech Republic, sunrise is at 06:17 and sunset at 19:46. On the last day of the month, sunrise is at 07:01 and sunset at 18:42 CEST.

How long on average sun shines in September in Prague?

In September, the average sunshine duration in Prague, Czech Republic, is 5.4h.

What is the UV index intensity in September in Prague?

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

23°C 73.4°F

19°C 66.2°F

13.1°C 55.6°F

Average low temperature

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average daylight

Average sunshine

Average UV index

Average temperature in September
Prague, Czech Republic

Average high temperature in September: 19°C

The warmest month (with the highest average high temperature) is July (24°C).
The month with the lowest average high temperature is January (0.4°C).

Average low temperature in September: 8.7°C

The month with the highest average low temperature is July (11.9°C).
The coldest month (with the lowest average low temperature) is January (-5.4°C).

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Average humidity in September
Prague, Czech Republic

Average humidity in September: 77%

The months with the highest relative humidity are January, November and December (85%).
The months with the lowest relative humidity are April, May and July (70%).

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Average rainfall in September
Prague, Czech Republic

Average rainfall in September: 40mm

The wettest month (with the highest rainfall) is May (77.2mm).
The driest month (with the least rainfall) is February (22.6mm).

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Average rainfall days in September
Prague, Czech Republic

Average rainfall days in September: 7 days

The month with the highest number of rainy days is June (10.3 days).
The month with the least rainy days is October (5.5 days).

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Average snowfall in September
Prague, Czech Republic

Average snowfall in September: 0mm

The month with the highest snowfall is January (179mm).
The months with the least snowfall are May, June, July, August and September (0mm).

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Average daylight in September /
Average sunshine in September
Prague, 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: 5h and 2min

The months with the most sunshine are June and July (Average sunshine: 7h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).

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Average UV index in September
Prague, Czech Republic

Average UV index in September: 4

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 1).

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September weather forecast
Prague, Czech Republic

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