Heidelberg in September average weather

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Temperatures trend during September in Heidelberg

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September weather day by day

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August October

Date	Weather	Temperatures	Rain	UV
1 Sept.	Sunny	23° /6°	0 mm	7
2 Sept.	Sunny	24° /10°	0 mm	7
3 Sept.	Sunny	25° /10°	0 mm	8
4 Sept.	Sunny	25° /11°	0 mm	7
5 Sept.	Sunny	24° /11°	0 mm	7
6 Sept.	Sunny	26° /12°	0 mm	8
7 Sept.	Sunny	24° /11°	0 mm	7
8 Sept.	Sunny	26° /12°	0 mm	8
9 Sept.	Patchy rain possible	26° /9°	0.5 mm	7
10 Sept.	Partly cloudy	20° /7°	0 mm	7
11 Sept.	Partly cloudy	24° /10°	0 mm	7
12 Sept.	Sunny	27° /14°	0 mm	8
13 Sept.	Sunny	29° /15°	0 mm	8
14 Sept.	Sunny	29° /16°	0 mm	8
15 Sept.	Cloudy	29° /17°	0 mm	7
16 Sept.	Patchy rain possible	26° /15°	0.5 mm	7
17 Sept.	Patchy rain possible	27° /14°	0.2 mm	7
18 Sept.	Sunny	27° /14°	0 mm	8
19 Sept.	Sunny	27° /13°	0 mm	8
20 Sept.	Patchy rain possible	12° /6°	0.8 mm	4
21 Sept.	Light drizzle	7° /5°	1.9 mm	3
22 Sept.	Overcast	17° /5°	0 mm	5
23 Sept.	Sunny	21° /6°	0 mm	7
24 Sept.	Patchy rain possible	24° /9°	0 mm	6
25 Sept.	Partly cloudy	28° /14°	0 mm	8
26 Sept.	Partly cloudy	29° /15°	0 mm	8
27 Sept.	Sunny	28° /14°	0 mm	8
28 Sept.	Patchy rain possible	29° /15°	0.9 mm	7
29 Sept.	Partly cloudy	29° /15°	0.9 mm	8
30 Sept.	Sunny	21° /8°	0 mm	7
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Important Notice

Our weather forecast for Heidelberg in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Heidelberg forecast closer to your planned date for the most up-to-date weather information.

Heidelberg in September - FAQ

What are the expected maximum and minimum temperatures in Heidelberg during September?

Enjoy moderate daytime temperatures of up to 24° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Heidelberg during September?

Rainfall in Heidelberg during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 6 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.

What are the typical wind conditions in Heidelberg during September?

The average wind speed in Heidelberg during September is 23 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Heidelberg

Explore the daily rainfall trends and prepare for Heidelbergs September weather 💧

UV exposure in Heidelberg during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Get accurate weather forecasts for Heidelberg, located at latitude -26.505 and longitude 28.359. Stay updated with localized weather information tailored for Heidelberg.

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Mon.	Tue.	Wed.	Thu.	Fri.	Sat.	Sun.
1 23°	2 24°	3 25°	4 25°	5 24°	6 26°	7 24°
8 26°	9 26°	10 20°	11 24°	12 27°	13 29°	14 29°
15 29°	16 26°	17 27°	18 27°	19 27°	20 12°	21 7°
22 17°	23 21°	24 24°	25 28°	26 29°	27 28°	28 29°
29 29°	30 21°

Weather in Heidelberg for September 2025

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