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The temperatures in Flemish Brabant in September are usually low and can range between 12°C and 20°C.
You can expect about 3 to 8 days of rain in Flemish Brabant 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 Flemish Brabant in September 2025.
If you’re planning to visit Flemish Brabant in the near future, we highly recommend that you review the 14 day weather forecast for Flemish Brabant before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 5° / 1° | 9 | 16 | 6 | 90 mm | Awful | Flemish Brabant in January |
| February | 7° / 2° | 8 | 15 | 6 | 72 mm | Awful | Flemish Brabant in February |
| March | 11° / 4° | 7 | 22 | 2 | 72 mm | Awful | Flemish Brabant in March |
| April | 15° / 6° | 4 | 25 | 1 | 53 mm | Good | Flemish Brabant in April |
| May | 18° / 9° | 6 | 25 | 0 | 87 mm | Good | Flemish Brabant in May |
| June | 21° / 12° | 6 | 24 | 0 | 99 mm | Good | Flemish Brabant in June |
| July | 23° / 14° | 6 | 25 | 0 | 95 mm | Perfect | Flemish Brabant in July |
| August | 23° / 15° | 5 | 26 | 0 | 99 mm | Perfect | Flemish Brabant in August |
| September | 20° / 12° | 4 | 26 | 0 | 60 mm | Good | Flemish Brabant in September |
| October | 15° / 9° | 5 | 26 | 0 | 71 mm | Good | Flemish Brabant in October |
| November | 10° / 5° | 7 | 21 | 1 | 84 mm | Bad | Flemish Brabant in November |
| December | 6° / 3° | 9 | 17 | 4 | 103 mm | Awful | Flemish Brabant in December |
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