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
Temperature (°C)
Rainfall (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
11/4
Wednesday
Sunny
9.5°C/3°C
11/5
Thursday
Sunny
11°C/2.2°C
11/6
Friday
Sunny
10.6°C/1.5°C
11/7
Saturday
Patchy rain nearby
9.3°C/4.9°C
11/8
Sunday
Smoky haze
9.7°C/2.3°C
11/9
Monday
Cloudy
9.2°C/2.9°C
11/10
Tuesday
Patchy rain nearby
9.6°C/4.2°C
KKday App
Your Best Travel Buddy
Use the code APP5OFF to enjoy an exclusive in-app deal of 5% off (cap at USD$3) on your 1st orderScan here to download the app