Perth Weather in August
Perth in August
The short of it: Perth in August averages a high of 25 °C (78 °F) and a low of 14 °C (57 °F), with 78 mm (3.1 in) of rain and about 14 h 3 min of daylight. Rated 3 of 5 for a visit; the best months are June and September. Source: TerraClimate climate normals, 1991–2020.
Average high 25° · low 14° · rain 78 mm · daylight 14 h 3 min
✦✦✦ Fair for a visit · best months: June & September
Thirty years of records give Perth an average August high of 25°, a low of 14° and some 78 mm of rain. Much like July: highs about 25°, nights near 14°. Easy travelling weather. Wet spells are common — about 78 mm, the 7th wettest month.
The sun is up for about 14 h 3 min in mid-August, 73 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 June and September.
Against its neighbours, Perth runs cooler than most and about as wet in August. Smiths Falls, 18 km to the E, sees much the same highs.
August in Perth, by the numbers
- Warmth rank
- 2nd warmest of 12
- Rain rank
- 7th wettest of 12
- Versus July
- 1° colder, 11 mm less rain
- Versus September
- 4° warmer
- Day–night spread
- 12°
- Snow season
- Nov–Apr
- Daylight, mid-month
- 14 h 3 min
- Average wind
- 10 km/h
Neighbouring Towns
August averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| Smiths FallsOntario | 18 km E | 25° | 14° | 83 mm |
| Carleton PlaceOntario | 27 km NNE | 25° | 14° | 78 mm |
| AlmonteOntario | 37 km N | 25° | 14° | 78 mm |
| Mississippi MillsOntario | 37 km N | 25° | 14° | 78 mm |
| StittsvilleOntario | 47 km NE | 26° | 14° | 86 mm |
| KanataOntario | 52 km NNE | 26° | 14° | 88 mm |
| Glen CairnOntario | 52 km NNE | 26° | 14° | 88 mm |
| BridlewoodOntario | 53 km NE | 26° | 14° | 86 mm |