Brussels Weather in September
Brussels in September
The short of it: Brussels in September averages a high of 21 °C (71 °F) and a low of 11 °C (51 °F), with 106 mm (4.2 in) of rain and about 12 h 26 min of daylight. Rated 3 of 5 for a visit; the best months are June and August. Source: TerraClimate climate normals, 1991–2020.
Average high 21° · low 11° · rain 106 mm · daylight 12 h 26 min
✦✦✦ Fair for a visit · best months: June & August
Thirty years of records give Brussels an average September high of 21°, a low of 11° and some 106 mm of rain. Much like August: highs about 21°, nights near 11°. Easy travelling weather. Wet spells are common — about 106 mm, the 5th wettest month.
The sun is up for about 12 h 26 min in mid-September, 92 minutes less than a month before.
For the traveller: pack light clothes and a jacket for the evening, and an oilskin besides. The Almanac rates September 3 of 5 for a visit; the finest months here are June and August.
Against its neighbours, Brussels runs about middling and wetter than most in September. Huron East, 15 km to the SSW, sees much the same highs.
September in Brussels, by the numbers
- Warmth rank
- 4th warmest of 12
- Rain rank
- 5th wettest of 12
- Versus August
- 3° colder, 18 mm more rain
- Versus October
- 7° warmer
- Day–night spread
- 11°
- Snow season
- Nov–Apr
- Daylight, mid-month
- 12 h 26 min
- Average wind
- 12 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| Huron EastOntario | 15 km SSW | 22° | 11° | 107 mm |
| North PerthOntario | 23 km E | 21° | 10° | 91 mm |
| ListowelOntario | 24 km E | 21° | 10° | 90 mm |
| GoderichOntario | 37 km W | 21° | 12° | 89 mm |
| BluewaterOntario | 42 km SW | 22° | 11° | 97 mm |
| StratfordOntario | 48 km SSE | 21° | 11° | 88 mm |
| HanoverOntario | 48 km NNE | 22° | 10° | 102 mm |
| South HuronOntario | 52 km SSW | 22° | 11° | 103 mm |