Click on a day for an hourly weather forecast
The temperatures in Heilbronn in August are comfortable with low of 15°C and and high up to 25°C.
You can expect about 3 to 8 days of rain in Heilbronn during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Heilbronn in August 2025.
If you’re planning to visit Heilbronn in the near future, we highly recommend that you review the 14 day weather forecast for Heilbronn before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 4° / -1° | 6 | 14 | 11 | 74 mm | Awful | Heilbronn in January |
| February | 6° / 0° | 6 | 14 | 9 | 68 mm | Awful | Heilbronn in February |
| March | 11° / 3° | 6 | 21 | 4 | 55 mm | Bad | Heilbronn in March |
| April | 16° / 6° | 5 | 24 | 1 | 48 mm | Good | Heilbronn in April |
| May | 19° / 8° | 8 | 23 | 0 | 115 mm | Ok | Heilbronn in May |
| June | 23° / 12° | 6 | 24 | 0 | 102 mm | Perfect | Heilbronn in June |
| July | 25° / 14° | 5 | 26 | 0 | 105 mm | Perfect | Heilbronn in July |
| August | 25° / 15° | 5 | 26 | 0 | 76 mm | Perfect | Heilbronn in August |
| September | 21° / 11° | 4 | 26 | 0 | 54 mm | Good | Heilbronn in September |
| October | 15° / 7° | 5 | 26 | 0 | 57 mm | Good | Heilbronn in October |
| November | 10° / 4° | 6 | 21 | 3 | 70 mm | Bad | Heilbronn in November |
| December | 6° / 1° | 9 | 15 | 7 | 89 mm | Awful | Heilbronn in December |