Best time to visit · Heidelberg

🗓️ The best months to visit Heidelberg are Jun · Aug, based on average temperature and rainfall.

Typical monthly temperature, humidity and rainfall.

Jan3°💧 84%🌧️ 88mm

Feb5°💧 79%🌧️ 65mm

Mar7°💧 72%🌧️ 55mm

Apr10°💧 70%🌧️ 71mm

May15°💧 68%🌧️ 86mm

Jun20°💧 64%🌧️ 67mm

Jul20°💧 66%🌧️ 90mm

Aug21°💧 68%🌧️ 81mm

Sep17°💧 75%🌧️ 89mm

Oct12°💧 82%🌧️ 103mm

Nov6°💧 87%🌧️ 92mm

Dec4°💧 87%🌧️ 77mm

Source: Open-Meteo · Last checked Jul 11, 2026