Click on a day for an hourly weather forecast
The temperatures in Heppenheim in May are quite cold with temperatures between 9°C and 20°C, warm clothes are a must.
You can expect rain for roughly half of the month of May in Heppenheim. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Heppenheim in May 2025.
If you’re planning to visit Heppenheim in the near future, we highly recommend that you review the 14 day weather forecast for Heppenheim before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 5° / 0° | 9 | 20 | 2 | 62 mm | Awful | Heppenheim in January |
| February | 7° / 0° | 6 | 21 | 1 | 45 mm | Ok | Heppenheim in February |
| March | 11° / 3° | 6 | 24 | 1 | 48 mm | Ok | Heppenheim in March |
| April | 16° / 6° | 6 | 24 | 0 | 45 mm | Good | Heppenheim in April |
| May | 20° / 9° | 8 | 23 | 0 | 73 mm | Ok | Heppenheim in May |
| June | 24° / 13° | 8 | 22 | 0 | 70 mm | Good | Heppenheim in June |
| July | 26° / 15° | 7 | 24 | 0 | 60 mm | Good | Heppenheim in July |
| August | 26° / 16° | 8 | 23 | 0 | 59 mm | Good | Heppenheim in August |
| September | 21° / 12° | 6 | 24 | 0 | 55 mm | Good | Heppenheim in September |
| October | 16° / 8° | 7 | 24 | 0 | 56 mm | Ok | Heppenheim in October |
| November | 10° / 4° | 7 | 23 | 0 | 57 mm | Bad | Heppenheim in November |
| December | 6° / 1° | 11 | 18 | 2 | 76 mm | Awful | Heppenheim in December |