What to pack for Prague in September
- t-shirts and light layers
- a light jacket for evenings
- a packable rain layer
Humidity averages 71%; max daily wind around 16 km/h.
How September compares
Best months in Prague: May–September. See the full best time to visit Prague guide.
Prague in September: the details
In September, Prague sees average daytime highs of 21°C (70°F) and overnight lows of 12°C (53°F). Rainfall totals roughly 62 mm across 8.8 rainy days, and the sun shines about 9.2 hours per day with 12.4 hours of daylight mid-month. Relative humidity averages 71%.
In context: September is the 4th-warmest month and the 5th-wettest in Prague. The sunniest month is June (12.4 h/day).
| Metric | September average |
|---|---|
| Daytime high | 21°C / 70°F |
| Overnight low | 12°C / 53°F |
| Rainfall | 62 mm over 8.8 rainy days |
| Sunshine | 9.2 h/day (12.4 h daylight) |
| Humidity | 71% |
| Travel score | 9.4 / 10 |
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Prague, Czechia (50.09, 14.42) — see our methodology. Actual conditions vary year to year.
Not set on Prague? Browse the best places to visit in September ranked by travel score.
Frequently asked questions
How hot is Prague in September?
Daytime highs in Prague in September average 21°C (70°F); nights drop to about 12°C.
Does it rain in Prague in September?
Expect around 8.8 rainy days and 62 mm of rainfall in September.
Is September a good time to visit Prague?
September is one of the best months to visit Prague. Overall travel score: 9.4/10. The best months are May–September.
Also good in September, near Prague
Where should you go next month?
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