Verdict: Excellent month
Prague Weather in September
September hits the sweet spot in Prague — highs around 21°C (70°F), ideal for a full day on foot. Expect showers on roughly 9 days of the month — rarely trip-ruining, worth planning around. Overall, September is one of the best months of the year to be in Prague.
Average high
21°C / 70°F
Average low
12°C / 54°F
Rain days
~9
Precipitation
65 mm
What to pack for Prague in September
- Layers — t-shirts under a light jacket or sweater
- A packable rain shell or compact umbrella earns its space
- Comfortable walking shoes — every guide on this site assumes you'll use them
September against the rest of the year
Warmest in Prague: Jul (26°C / 79°F) · Coolest: Jan (4°C / 39°F) · Wettest: Feb (~14 rain days)
4°
-1°
Jan
7°
0°
Feb
11°
1°
Mar
14°
4°
Apr
19°
9°
May
25°
14°
Jun
26°
16°
Jul
25°
16°
Aug
21°
12°
Sep
16°
7°
Oct
8°
2°
Nov
5°
0°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)