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Best time to visit Heidelberg
Data source:Meteostat Update date:2025-09
Weather in Heidelberg throughout the year
Spring (March–May): Average 8.3–16.3°C, mild climate, increasing sunshine, occasional showers. Common activities: Stroll through the Old Town, visit Heidelberg Castle, cycle along the Neckar River. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Summer (June–August): Average 20.4–22.1°C, warm and dry, plenty of sunshine, occasional afternoon thunderstorms. Common activities: Swimming in the Neckar River, visiting Heidelberg University, enjoying outdoor cafes. Recommended clothing: Short-sleeved shirts, shorts, sandals, and a light jacket in case of sudden rain.
Autumn (September–November): Average 17.3–7.6°C, cool climate, colorful foliage, more rainfall. Common activities: Enjoying the autumn scenery, visiting museums, tasting traditional German food and wine. Recommended clothing: Light sweater, jacket, long trousers, and rain gear.
Winter (December–February): Average 4.5–6.7°C, cold and humid, occasional snowfall. Common activities: Visiting indoor attractions such as the Heidelberg Castle Museum, enjoying hot chocolate and Christmas markets. Recommended clothing: Thick coat, sweater, scarf, gloves, and hat.
Weather in Heidelberg
Annual average temperature: approx. 12.7°C / Annual rainfall: approx. 678 mm / Summer humidity: 60%–70% / Rainiest month: October
Heidelberg weather by month
Month
Air temperature (°C)
Precipitation (mm)
January
3.8°C
44.5
February
6.7°C
33.8
March
8.3°C
39.8
April
10.4°C
60
May
16.3°C
64.7
June
20.4°C
56.9
July
21.5°C
57.3
August
22.1°C
59.5
September
17.3°C
77.7
October
13.4°C
82.7
November
7.6°C
70.9
December
4.5°C
30.8
7-day weather forecast for Heidelberg
10/27
Tuesday
Overcast
16.8°C/9.5°C
10/28
Wednesday
Sunny
13.1°C/6.1°C
10/29
Thursday
Sunny
13.3°C/3.6°C
10/30
Friday
Sunny
12.5°C/2.9°C
10/31
Saturday
Sunny
13.1°C/3.1°C
11/1
Sunday
Partly Cloudy
11.4°C/3°C
11/2
Monday
Partly Cloudy
11.1°C/3.7°C
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