Weather in Prague in September
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Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youIn September, Prague sees average highs of 21.3°C (70.3°F) and lows of 11.3°C. Conditions are pleasantly mild and moderately rainy (7 rainy days), with roughly 9.5 hours of sunshine a day. Weather-wise, this is one of the most reliable months to travel. For the complete picture, see the best time to visit Prague — every month compared. Once you know when to go, find your Prague packing list at 247PackingList.
Get ready for Prague in September
Search flights to Prague
Compare 100+ airlines for September — one search, best price.
Search Flights →Thermal travel layers
Pack proper layers — winters are genuinely cold and evenings drop fast year-round.
Check Price →What to pack for Prague in September
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
- A warm layer for cool evenings
Compare all months in Prague
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 4.5°C | 38.2mm | 8/10 |
| February | 6.8°C | 52.3mm | 10/10 |
| March | 10.0°C | 36.2mm | 10/10 |
| April | 13.5°C | 44.5mm | 10/10 |
| May | 19.0°C | 67.9mm | 10/10 |
| June | 24.5°C | 104.5mm | 9/10 |
| July | 25.7°C | 63.7mm | 10/10 |
| August | 24.7°C | 110.5mm | 9/10 |
| September | 21.3°C | 43.9mm | 10/10 |
| October | 16.0°C | 53.8mm | 10/10 |
| November | 8.3°C | 49.6mm | 10/10 |
| December | 4.8°C | 58.9mm | 8/10 |
Full month-by-month guide: best time to visit Prague →
For facts about Czech Republic — currency, language and dialling code — see our Czech Republic country guide at 247CountryInfo. Travellers also find it useful to keep a Prague travel guide to hand. Check clothing sizes in Czech Republic before you shop.
Frequently Asked Questions
Is September a good time to visit Prague?
September rates 10/10 for visiting Prague — excellent time to visit. Expect average highs of 21.3°C, 43.9mm of rain across the month and about 9.5 hours of daily sunshine.
What is the temperature in Prague in September?
In September, Prague has average highs of 21.3°C (70.3°F) and average lows of 11.3°C (52.3°F).
Does it rain in Prague in September?
Not much. September averages just 43.9mm of rain in Prague — the odd shower is possible but most days stay dry.
What should I wear in Prague in September?
For Prague in September (21.3°C highs / 11.3°C lows), pack light layers plus sunscreen, t-shirts and light trousers or shorts, a warm layer for cool evenings.
More essentials for Prague in September
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.