St Lawrence Weather in September
St Lawrence in September
The short of it: St Lawrence in September averages a high of 19 °C (66 °F) and a low of 13 °C (56 °F), with 62 mm (2.4 in) of rain and about 12 h 31 min of daylight. Rated 4 of 5 for a visit; the best months are July and August. Source: TerraClimate climate normals, 1991–2020.
Average high 19° · low 13° · rain 62 mm · daylight 12 h 31 min
✦✦✦✦ Recommended for a visit · best months: July & August
Thirty years of records give St Lawrence an average September high of 19°, a low of 13° and some 62 mm of rain. Much like August: highs about 19°, nights near 13°. Easy travelling weather. Wet spells are common — about 62 mm, the 7th wettest month.
The sun is up for about 12 h 31 min in mid-September, 112 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 4 of 5 for a visit; the finest months here are July and August.
Against its neighbours, St Lawrence runs about middling and wetter than most in September. Saint John, 3 km to the N, sees much the same highs.
September in St Lawrence, by the numbers
- Warmth rank
- 3rd warmest of 12
- Rain rank
- 7th wettest of 12
- Versus August
- 2° colder, 6.0 mm more rain
- Versus October
- 3° warmer
- Day–night spread
- 5°
- Snow season
- seldom any
- Daylight, mid-month
- 12 h 31 min
- Average wind
- 22 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| Saint JohnOther | 3 km N | 19° | 13° | 62 mm |
| Saint HelierSt Helier | 4 km SE | 20° | 13° | 61 mm |
| TrinityOther | 4 km ENE | 19° | 13° | 63 mm |
| St MartinOther | 7 km E | 19° | 13° | 62 mm |
| Saint Peter PortSt Peter Port | 39 km NW | 18° | 14° | 58 mm |
| Saint SampsonSt Sampson | 41 km NW | 18° | 14° | 58 mm |
| Les PieuxNormandy | 41 km NE | 19° | 13° | 66 mm |
| Vale ParishGuernsey | 41 km NW | 18° | 14° | 58 mm |