September · Czechia
Best time to visit Prague in September Weather, crowds & prices
Weather in Prague in September
Average temperature 16°C, 88 mm of rain, about 9 days with 6+ hours of sunshine and 74% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
7.4/10
Ranked #5 of 12 months
- Avg temp
- 16°C
- Rainfall
- 88 mm
- Humidity
- 74%
- Days with 6h+ sun
- 9
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Prague scores 7.4/10 for sightseeing and cultural travel - an above-average month (#5 of 12). Expect around 16°C, 88 mm of rain, and roughly 9 days with 6+ hours of sunshine this month.
From May to September, Prague reveals its castle panoramas and winding Old Town lanes under gentle, crowd-friendly warmth.
September in Prague — reliably good (5th best month)
September averages 16°C (60°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 88 mm, so plan one flexible day in three; you still get about 9 days with 6+ hours of sunshine and 12.4 hours of daylight.
It scores 7.4/10 here, 5th of 12 months, against 8.9/10 in the destination's best month.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Plan for mid-season pricing, with crowds are moderate.
Flexible dates? May scores 1.5 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Prague in September?
- In September, Prague averages 16°C, 88 mm of rain, and about 9 days with 6+ hours of sunshine. Its climate-comfort score is 7.4/10.
- Is September a good time to visit Prague?
- September earns a 7.4/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Prague in September?
- Expect about 88 mm of rain in September. Average humidity is 74% and there are about 9 days with 6+ hours of sunshine.
Curated in Prague
Tickets & experiences
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Prague, Czechia. Live activities and tours from GetYourGuide, matched to this destination.