Waterloo Weather in September
Waterloo in September
The short of it: Waterloo in September averages a high of 20 °C (68 °F) and a low of 9 °C (49 °F), with 91 mm (3.6 in) of rain and about 12 h 27 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 20° · low 9° · rain 91 mm · daylight 12 h 27 min
✦✦✦ Fair for a visit · best months: June & August
September in Waterloo brings afternoons near 20° and nights around 9°, with about 91 mm of rain over the month. Much like August: highs about 20°, nights near 9°. Easy travelling weather. Wet spells are common — about 91 mm, the 10th wettest month.
The sun is up for about 12 h 27 min in mid-September, 98 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, Waterloo runs cooler than most and drier than most in September. Bromont, 11 km to the WSW, sees much the same highs.
September in Waterloo, by the numbers
- Warmth rank
- 4th warmest of 12
- Rain rank
- 10th wettest of 12
- Versus August
- 4° colder, 31 mm less rain
- Versus October
- 8° warmer
- Day–night spread
- 11°
- Snow season
- Nov–Apr
- Daylight, mid-month
- 12 h 27 min
- Average wind
- 8 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| BromontQuebec | 11 km WSW | 21° | 10° | 92 mm |
| Lac-BromeQuebec | 15 km S | 20° | 9° | 94 mm |
| GranbyQuebec | 18 km WNW | 21° | 10° | 88 mm |
| Roxton PondQuebec | 19 km NW | 21° | 10° | 86 mm |
| CowansvilleQuebec | 25 km SW | 21° | 10° | 94 mm |
| SuttonQuebec | 29 km SSW | 20° | 9° | 99 mm |
| MagogQuebec | 30 km ESE | 20° | 9° | 86 mm |
| Acton ValeQuebec | 34 km N | 21° | 10° | 81 mm |