Chatham Weather in August
Chatham in August
The short of it: Chatham in August averages a high of 27 °C (81 °F) and a low of 17 °C (62 °F), with 76 mm (3.0 in) of rain and about 13 h 53 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 27° · low 17° · rain 76 mm · daylight 13 h 53 min
✦✦✦ Fair for a visit · best months: September & June
Thirty years of records give Chatham an average August high of 27°, a low of 17° and some 76 mm of rain. Much like July: highs about 27°, nights near 17°. Easy travelling weather. Wet spells are common — about 76 mm, the 6th wettest month.
The sun is up for about 13 h 53 min in mid-August, 66 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 August 3 of 5 for a visit; the finest months here are September and June.
Against its neighbours, Chatham runs warmer than most and wetter than most in August. Ridgetown, 25 km to the E, is 1° cooler by day.
August in Chatham, by the numbers
- Warmth rank
- 2nd warmest of 12
- Rain rank
- 6th wettest of 12
- Versus July
- 1° colder, 10 mm less rain
- Versus September
- 3° warmer
- Day–night spread
- 11°
- Snow season
- Dec–Mar
- Daylight, mid-month
- 13 h 53 min
- Average wind
- 11 km/h
Neighbouring Towns
August averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| RidgetownOntario | 25 km E | 26° | 16° | 82 mm |
| TilburyOntario | 26 km SW | 27° | 17° | 76 mm |
| WallaceburgOntario | 26 km NW | 27° | 16° | 73 mm |
| AlgonacMichigan | 37 km NW | 26° | 16° | 74 mm |
| Pearl BeachMichigan | 41 km NW | 26° | 16° | 74 mm |
| Marine CityMichigan | 42 km NW | 27° | 16° | 74 mm |
| Belle RiverOntario | 45 km WSW | 27° | 17° | 76 mm |
| Saint ClairMichigan | 52 km NNW | 27° | 16° | 73 mm |