01Weather
Prague weather in September
Afternoons in September average 21.3 °C (70 °F) and nights cool to 10.8 °C (51 °F). The month brings about 52 mm (2.1 in) of rain spread over roughly 8 days. Compared with August it is 4.9 °C cooler; October is 6.0 °C cooler again.
What the averages hide
| In a typical September | Value | What it means |
|---|---|---|
| Warm afternoons (90th percentile) | 28 °C / 83 °F | one day in ten is at least this warm |
| Cool afternoons (10th percentile) | 14 °C / 58 °F | one day in ten stays below this |
| Cold nights (10th percentile) | 6 °C / 44 °F | one night in ten is colder than this |
| Days above 30 °C (86 °F) | 1.4 | per month, average 2016–2025 |
| Nights at or below 0 °C (32 °F) | 0.0 | frost mornings per month |
| Chance of rain on any given day | 27 % | at least 1 mm |
| Hottest / coldest September day 2016–2025 | 34.3 °C / 0.4 °C | extremes in the ten-year record |
02Daylight
Sunrise, sunset and the length of the day
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 1 September | 06:17 | 19:47 | 13.5 h |
| 15 September | 06:38 | 19:16 | 12.6 h |
| 30 September | 07:01 | 18:43 | 11.7 h |
Daylight shrinks by about 108 minutes over the month. Times are local (Europe/Prague).
03Crowds
How busy Prague is in September
busy The main sights are busy in September. What drives it:
- Dvořák Prague festival
- pleasant weather
- schools back
04Public holidays
Public holidays in September 2027
| Date | Holiday |
|---|---|
| 28 Sep 2027 | St. Wenceslas Day |
On public holidays many shops close and museums run on Sunday hours; check opening times for the day before and after as well.
05Events
What's on in Prague in September
Every year in September
| Event | When | Type |
|---|---|---|
| Dvořák Prague | September, Rudolfinum | music |
07Packing
What to pack for Prague in September
- layers: t-shirt plus a light jacket for evenings
- comfortable walking shoes
- a compact umbrella for occasional showers
08Editor's notes
What the numbers don't tell you
September is mild, usually dry and noticeably calmer once European schools resume, with afternoons around 19 °C and the Dvořák Prague festival at the Rudolfinum in the first half. Czech Statehood Day on 28 September is a public holiday. It is many locals' favourite month, combining summer warmth with autumn colour by the end. Rates ease from the summer high.
Rain falls on about seven days. The Letní Letná festival ends in the first days of the month. The beer gardens stay open until the first cold nights in October. Daylight drops from thirteen and a half hours to under twelve. The Signal light festival and the autumn colours follow in October; the first half of September still has summer evenings on the river.
09Compare
Prague month by month
| Month | High | Low | Rain days | Sun h | Crowds | Verdict |
|---|---|---|---|---|---|---|
| January | 4 °C | -1 °C | 10 | – | quiet | Mixed |
| February | 7 °C | 0 °C | 7 | – | quiet | Good |
| March | 11 °C | 2 °C | 7 | – | moderate | Good |
| April | 15 °C | 4 °C | 9 | – | busy | Good |
| May | 19 °C | 8 °C | 11 | – | very busy | Good |
| June | 25 °C | 14 °C | 11 | – | very busy | Good |
| July | 26 °C | 15 °C | 10 | – | very busy | Good |
| August | 26 °C | 15 °C | 10 | – | very busy | Good |
| September | 21 °C | 11 °C | 8 | – | busy | Excellent |
| October | 15 °C | 7 °C | 8 | – | moderate | Good |
| November | 8 °C | 2 °C | 7 | – | quiet | Good |
| December | 5 °C | 0 °C | 8 | – | busy | Mixed |
Not sure about September? See the best time to visit Prague.
10Elsewhere
September in nearby cities
| City | High | Rain days |
|---|---|---|
| Budapest in September | 24 °C | 10 |
| Venice in September | 24 °C | 7 |
| Copenhagen in September | 18 °C | – |
| Amsterdam in September | 20 °C | 10 |
| Paris in September | 22 °C | 10 |
| Rome in September | 28 °C | 6 |
11FAQ
Prague in September: your questions
Is September a good time to visit Prague?
September is one of the best months to visit Prague. Daytime highs average 21 °C (70 °F), rain falls on about 8 days, and hotel arrivals run above the yearly average, so the main sights are busy.
What is the weather like in Prague in September?
Expect mild days around 21 °C (70 °F) and nights near 11 °C (51 °F). One September in ten brings afternoons above 28 °C, and one in ten stays below 14 °C.
Does it rain a lot in Prague in September?
September brings about 52 mm (2.1 in) of rain over roughly 8 days, which is fairly dry by Prague standards. On any given day the chance of at least 1 mm of rain is 27 percent.
What should I wear in Prague in September?
Pack layers: t-shirt plus a light jacket for evenings, comfortable walking shoes, a compact umbrella for occasional showers.
Is Prague crowded in September?
The main sights are busy in September. Main drivers: Dvořák Prague festival; pleasant weather; schools back.
What time does it get dark in Prague in September?
Around the middle of September the sun sets at about 19:16 and rises at 06:38, giving 12.6 hours of daylight.