Heidelberg Castle
Heidelberg, Germany

Heidelberg Castle is a red sandstone castle and museum featuring Gothic and Renaissance architecture. It is located in the city of Heidelberg and is the 29th most looked-up sight in Germany on English Wikipedia, sitting at an elevation of 213 m.
Planning a visit
The warmest months to visit are July and August, which have daily highs of 23 °C and lows of 14 °C. The coldest months are January and December, with daily highs of 4 °C and lows between -1 °C and -2 °C. Rain is common, with 102 mm in May and 101 mm in July.
Mannheim-City Airport is 16 km away, and Frankfurt Main Airport is 69 km away. The castle is 475 km from Berlin. Admission is €9, and the site does not have wheelchair access. Nearby attractions that can be combined with a visit include Hockenheimring (14.2 km), Speyer Cathedral (22.3 km), Lorsch Abbey (29.1 km), and Frankenstein Castle (42.7 km).
Weather by month
The warmest month is July, with an average high of 23 °C. Rain is spread fairly evenly through the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high, °C | 4 | 5 | 9 | 13 | 18 | 21 | 23 | 23 | 19 | 14 | 8 | 4 |
| Average low, °C | -2 | -2 | 1 | 4 | 8 | 11 | 14 | 14 | 10 | 7 | 2 | -1 |
| Rainfall, mm | 82 | 77 | 91 | 72 | 102 | 91 | 101 | 79 | 80 | 98 | 90 | 98 |
| Rainy days | 14 | 12 | 12 | 10 | 13 | 12 | 12 | 13 | 10 | 12 | 12 | 14 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.