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The temperatures in Mainz in April are quite cold with temperatures between 6°C and 17°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Mainz during the month of April. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Please note that Mainz can expect a few days of snow in April.
Our weather forecast can give you a great sense of what weather to expect in Mainz in April 2025.
If you’re planning to visit Mainz in the near future, we highly recommend that you review the 14 day weather forecast for Mainz before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 4° / 0° | 6 | 16 | 9 | 44 mm | Awful | Mainz in January |
| February | 6° / 1° | 5 | 17 | 6 | 40 mm | Awful | Mainz in February |
| March | 11° / 3° | 5 | 24 | 2 | 33 mm | Bad | Mainz in March |
| April | 17° / 6° | 4 | 25 | 1 | 34 mm | Good | Mainz in April |
| May | 20° / 9° | 6 | 25 | 0 | 84 mm | Good | Mainz in May |
| June | 24° / 13° | 5 | 25 | 0 | 74 mm | Perfect | Mainz in June |
| July | 26° / 15° | 5 | 26 | 0 | 84 mm | Perfect | Mainz in July |
| August | 26° / 15° | 4 | 27 | 0 | 67 mm | Perfect | Mainz in August |
| September | 22° / 12° | 3 | 27 | 0 | 45 mm | Good | Mainz in September |
| October | 15° / 8° | 4 | 27 | 0 | 50 mm | Good | Mainz in October |
| November | 10° / 4° | 5 | 23 | 2 | 49 mm | Bad | Mainz in November |
| December | 6° / 2° | 8 | 18 | 6 | 59 mm | Awful | Mainz in December |