Click on a day for an hourly weather forecast
The temperatures in Delft in September are usually low and can range between 14°C and 19°C.
You can expect about 3 to 8 days of rain in Delft during the month of September. 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 Delft in September 2025.
If you’re planning to visit Delft in the near future, we highly recommend that you review the 14 day weather forecast for Delft before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 6° / 4° | 10 | 18 | 4 | 107 mm | Awful | Delft in January |
| February | 6° / 3° | 8 | 16 | 4 | 78 mm | Awful | Delft in February |
| March | 9° / 5° | 6 | 24 | 1 | 67 mm | Ok | Delft in March |
| April | 13° / 7° | 3 | 26 | 1 | 45 mm | Ok | Delft in April |
| May | 15° / 10° | 5 | 26 | 0 | 79 mm | Good | Delft in May |
| June | 18° / 13° | 5 | 25 | 0 | 90 mm | Good | Delft in June |
| July | 20° / 16° | 7 | 24 | 0 | 116 mm | Ok | Delft in July |
| August | 21° / 16° | 7 | 24 | 0 | 138 mm | Ok | Delft in August |
| September | 19° / 14° | 6 | 24 | 0 | 109 mm | Good | Delft in September |
| October | 15° / 11° | 8 | 23 | 0 | 124 mm | Ok | Delft in October |
| November | 11° / 8° | 7 | 22 | 1 | 115 mm | Bad | Delft in November |
| December | 8° / 5° | 10 | 18 | 3 | 118 mm | Awful | Delft in December |