Heidelberg Weather in May

Thinking of visiting Heidelberg in May? Expect moderate temperatures reaching 17°C (63°F) during the day, dropping to 8°C (46°F) at night, with some rainfall likely.

Rainfall in Heidelberg in May

Typically, about 10 days will experience rainfall, with an average of 53 mm (2.1 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Heidelberg in May

If you're visiting Heidelberg in May, expect highs of 17°C (63°F) and overnight lows around 8°C (46°F). The difference between afternoon and evening temperatures is usually noticeable. Nights drop to 8°C (46°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Heidelberg in May

The month brings about 140 hours of sunlight, offering a comfortable mix of sun and overcast.

Wind Speed in Heidelberg in May

May has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.

Average water temperature in May

With water at 15°C (59°F), it's on the cooler side. Keen swimmers won't be put off, but those who prefer warm water may find it less enjoyable.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, October, November and December typically offer the best weather for Heidelberg.