Click on a day for an hourly weather forecast
The temperatures in De Haan 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 De Haan 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 De Haan in September 2026.
If you’re planning to visit De Haan in the near future, we highly recommend that you review the 14 day weather forecast for De Haan before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 7° / 3° | 9 | 18 | 4 | 78 mm | Awful | De Haan in January |
| February | 7° / 4° | 7 | 17 | 4 | 58 mm | Awful | De Haan in February |
| March | 10° / 5° | 6 | 24 | 1 | 53 mm | Ok | De Haan in March |
| April | 13° / 7° | 3 | 26 | 0 | 39 mm | Ok | De Haan in April |
| May | 15° / 10° | 4 | 27 | 0 | 56 mm | Good | De Haan in May |
| June | 18° / 13° | 4 | 26 | 0 | 64 mm | Good | De Haan in June |
| July | 20° / 15° | 5 | 26 | 0 | 85 mm | Good | De Haan in July |
| August | 21° / 16° | 6 | 25 | 0 | 98 mm | Good | De Haan in August |
| September | 19° / 14° | 4 | 26 | 0 | 66 mm | Good | De Haan in September |
| October | 15° / 11° | 7 | 24 | 0 | 98 mm | Ok | De Haan in October |
| November | 11° / 8° | 7 | 22 | 0 | 95 mm | Bad | De Haan in November |
| December | 8° / 5° | 8 | 21 | 2 | 82 mm | Awful | De Haan in December |