Chatham Weather in September
Chatham in September
The short of it: Chatham in September averages a high of 24 °C (75 °F) and a low of 13 °C (56 °F), with 81 mm (3.2 in) of rain and about 12 h 25 min of daylight. Rated 3 of 5 for a visit; the best months are September and June. Source: TerraClimate climate normals, 1991–2020.
Average high 24° · low 13° · rain 81 mm · daylight 12 h 25 min
✦✦✦ Fair for a visit · best months: September & June
September in Chatham brings afternoons near 24° and nights around 13°, with about 81 mm of rain over the month. Much like August: highs about 24°, nights near 13°. Easy travelling weather. Wet spells are common — about 81 mm, the 4th wettest month.
The sun is up for about 12 h 25 min in mid-September, 88 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; it is the best month of the year to come.
Against its neighbours, Chatham runs warmer than most and wetter than most in September. Ridgetown, 25 km to the E, is 1° cooler by day.
September in Chatham, by the numbers
- Warmth rank
- 4th warmest of 12
- Rain rank
- 4th wettest of 12
- Versus August
- 3° colder, 5.0 mm more rain
- Versus October
- 7° warmer
- Day–night spread
- 11°
- Snow season
- Dec–Mar
- Daylight, mid-month
- 12 h 25 min
- Average wind
- 13 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| RidgetownOntario | 25 km E | 23° | 13° | 81 mm |
| TilburyOntario | 26 km SW | 23° | 13° | 80 mm |
| WallaceburgOntario | 26 km NW | 23° | 13° | 79 mm |
| AlgonacMichigan | 37 km NW | 23° | 13° | 78 mm |
| Pearl BeachMichigan | 41 km NW | 23° | 13° | 78 mm |
| Marine CityMichigan | 42 km NW | 23° | 13° | 87 mm |
| Belle RiverOntario | 45 km WSW | 23° | 13° | 79 mm |
| Saint ClairMichigan | 52 km NNW | 23° | 13° | 90 mm |