Saint John Weather in September
Saint John in September
The short of it: Saint John in September averages a high of 20 °C (67 °F) and a low of 10 °C (50 °F), with 104 mm (4.1 in) of rain and about 12 h 27 min of daylight. Rated 3 of 5 for a visit; the best months are August and July. Source: TerraClimate climate normals, 1991–2020.
Average high 20° · low 10° · rain 104 mm · daylight 12 h 27 min
✦✦✦ Fair for a visit · best months: August & July
September in Saint John brings afternoons near 20° and nights around 10°, with about 104 mm of rain over the month. Much like August: highs about 20°, nights near 10°. Easy travelling weather. Wet spells are common — about 104 mm, the 7th wettest month.
The sun is up for about 12 h 27 min in mid-September, 97 minutes less than a month before.
For the traveller: pack layers, a wool coat and stout boots, and an oilskin besides. The Almanac rates September 3 of 5 for a visit; the finest months here are August and July.
Against its neighbours, Saint John runs warmer than most and wetter than most in September. Uptown Saint John, 0 km to the NW, sees much the same highs.
September in Saint John, by the numbers
- Warmth rank
- 4th warmest of 12
- Rain rank
- 7th wettest of 12
- Versus August
- 4° colder, 40 mm more rain
- Versus October
- 6° warmer
- Day–night spread
- 10°
- Snow season
- Dec–Apr
- Daylight, mid-month
- 12 h 27 min
- Average wind
- 13 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| Uptown Saint JohnNew Brunswick | 0 km NW | 20° | 10° | 104 mm |
| South EndNew Brunswick | 0 km SSE | 20° | 10° | 104 mm |
| IndiantownNew Brunswick | 2 km WNW | 20° | 10° | 104 mm |
| North EndNew Brunswick | 2 km W | 20° | 10° | 104 mm |
| Saint John WestNew Brunswick | 2 km SW | 20° | 10° | 104 mm |
| Saint John EastNew Brunswick | 2 km NNE | 20° | 10° | 106 mm |
| Fundy HeightsNew Brunswick | 2 km SSW | 20° | 10° | 104 mm |
| Westmorland HeightsNew Brunswick | 3 km NNE | 20° | 10° | 105 mm |