Weather in Heidelberg for May 2026
In general, the average temperature in Heidelberg at the beginning of May is 19 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 22 °C by the end of May.
Heidelberg experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 84.4 mm.
Is May a good time to visit Heidelberg? check out the best time to travel to Heidelberg page.
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Heidelberg Weather May
Temperatures trend during May in Heidelberg
May weather in Heidelberg day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Moderate rain at times | 23° /11° | 0.8 mm | 5 | |
| 2 May |  Patchy rain possible | 20° /11° | 2 mm | 5 | |
| 3 May |  Sunny | 18° /9° | 2.7 mm | 5 | |
| 4 May |  Overcast | 16° /8° | 3.7 mm | 4 | |
| 5 May | Patchy rain possible | 20° /10° | 2.4 mm | 5 | |
| 6 May | Patchy rain possible | 18° /10° | 3.6 mm | 4 | |
| 7 May | Patchy rain possible | 18° /9° | 3.3 mm | 4 | |
| 8 May | Moderate rain at times | 17° /9° | 2.8 mm | 4 | |
| 9 May |  Partly cloudy | 19° /9° | 4.9 mm | 5 | |
| 10 May | Moderate rain at times | 19° /9° | 1.8 mm | 5 | |
| 11 May | Patchy rain possible | 20° /9° | 0.6 mm | 5 | |
| 12 May | Partly cloudy | 21° /10° | 1.2 mm | 5 | |
| 13 May | Patchy rain possible | 20° /10° | 1.5 mm | 5 | |
| 14 May | Patchy rain possible | 22° /10° | 0.3 mm | 5 | |
| 15 May | Moderate rain at times | 19° /11° | 1.9 mm | 4 | |
| 16 May | Patchy rain possible | 18° /9° | 5.6 mm | 4 | |
| 17 May | Overcast | 17° /8° | 3.8 mm | 4 | |
| 18 May | Partly cloudy | 20° /7° | 0.4 mm | 5 | |
| 19 May | Overcast | 20° /9° | 1.4 mm | 5 | |
| 20 May | Overcast | 21° /10° | 0.1 mm | 5 | |
| 21 May |  Cloudy | 21° /12° | 2.2 mm | 5 | |
| 22 May | Moderate rain at times | 20° /12° | 1.4 mm | 5 | |
| 23 May | Patchy rain possible | 18° /9° | 3 mm | 5 | |
| 24 May | Cloudy | 18° /9° | 1.7 mm | 4 | |
| 25 May | Partly cloudy | 21° /9° | 4.7 mm | 5 | |
| 26 May | Partly cloudy | 22° /10° | 0.2 mm | 6 | |
| 27 May | Sunny | 21° /10° | 1.8 mm | 5 | |
| 28 May | Light rain shower | 20° /10° | 3.6 mm | 5 | |
| 29 May | Partly cloudy | 22° /11° | 2.4 mm | 5 | |
| 30 May | Partly cloudy | 23° /11° | 3.5 mm | 6 | |
| 31 May | Sunny | 25° /13° | 3.5 mm | 6 | |
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Heidelberg in May - FAQ
What to pack to Heidelberg in May?
As you prepare for your trip to Heidelberg in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Heidelberg, during May, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
May rainfall patterns in Heidelberg
UV exposure in Heidelberg during May
Quick links
Where is Heidelberg?Get accurate weather forecasts for Heidelberg, located at latitude 49.408 and longitude 8.691. Stay updated with localized weather information tailored for Heidelberg.