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How is the Weather in Prague During September

Updated: July 28, 2023

Fall begins this month in Prague with comfortable daytime temperatures early but trending cool by month’s end.


Daytime high temperatures in Prague during September will fall gradually from 20-21 C (68-70 F) early in the month down to near 17 C (62-63 F) near the end of the month. 

A few of the warmer afternoons, especially early in the month, can reach up near 27 C (81 F). The record high temperature in Prague during September is 33 C (91 F).

Late night and early morning low temperatures in September tend to be around 11 C (51-52 F) early in the month, cooling down to near 8 C (46-47 F) near the end of the month. 

A few of the colder mornings, especially near the end of the month, can dip down near 4 C (39 F). The record low temperature in Prague during September is 0 C (32 F).

Rain or Shine 

September in Prague will usually feature about 15-16 days with sunny, or at least partly sunny skies with sunny skies are more likely near the end of this month.

Although 15 days usually record some rainfall, only about 7 days record 1 mm (0.04 inches) or more.


The hours of daylight quickly fall this month from 13.5 hours on September 1st down to 11.7 hours on the 30th.


The wind tends to be mostly light to gentle (6-19 kph/4-12 mph) but occasionally can be moderate (20-28 kph/13-18mph). 

What to Wear in Prague During September?

The fall season begins in September and nights and early mornings can be quite chilly, especially near the end of the month.

Jeans and short sleeve shirts work well along with a pair of shorts for the warmer days. 

For the cooler nights and early mornings, you will need a light-weight jacket or windbreaker, a long-sleeved shirt or two, and a light sweater. Don’t forget a good pair of walking shoes.

Things to do in Prague in September

Although the summer is coming to a close, there should be plenty of sunny or warm days this month, so you might want to consider going on a pay-what-you-want walking tour in Prague.

This is also typically the month when HC Sparta Prague begins its season, so if you're a hockey fan, you might want to consider attending a game.

You may also want to consider going to a concert this month, as there could be some pretty great musicians coming to town during this time of year.

For even more ideas, make sure to check our post covering things to do in Prague.

Fred Pickhardt

Ocean Weather Services 

About The Author

Fred Pickhardt

Fred is a marine meteorologist and sailed briefly with American Export Lines in the Far East trade. He has extensive experience in weather analysis, weather forecasting, and forensic weather event reconstructions. Fred founded Ocean Weather Services and currently provides forensic marine weather reports to the maritime industry.
Updated: July 28th, 2023
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