Joondalup Weather in September
Joondalup in September
The short of it: Joondalup in September averages a high of 20 °C (68 °F) and a low of 11 °C (51 °F), with 72 mm (2.8 in) of rain and about 11 h 57 min of daylight. Rated 3 of 5 for a visit; the best months are October and November. Source: TerraClimate climate normals, 1991–2020.
Average high 20° · low 11° · rain 72 mm · daylight 11 h 57 min
✦✦✦ Fair for a visit · best months: October & November
Thirty years of records give Joondalup an average September high of 20°, a low of 11° and some 72 mm of rain. Much like August: highs about 20°, nights near 11°. Easy travelling weather. Wet spells are common — about 72 mm, the 5th wettest month.
The sun is up for about 11 h 57 min in mid-September, 59 minutes more 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; the finest months here are October and November.
Against its neighbours, Joondalup runs cooler than most and drier than most in September. Wanneroo, 3 km to the ESE, sees much the same highs.
September in Joondalup, by the numbers
- Warmth rank
- 9th warmest of 12
- Rain rank
- 5th wettest of 12
- Versus August
- 2° warmer, 36 mm less rain
- Versus October
- 3° colder
- Day–night spread
- 9°
- Snow season
- seldom any
- Daylight, mid-month
- 11 h 57 min
- Average wind
- 17 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| WannerooWestern Australia | 3 km ESE | 20° | 10° | 75 mm |
| TappingWestern Australia | 4 km NE | 20° | 10° | 75 mm |
| Banksia GroveWestern Australia | 6 km NNE | 20° | 10° | 75 mm |
| HillarysWestern Australia | 7 km SSW | 20° | 11° | 68 mm |
| KingsleyWestern Australia | 8 km SSE | 21° | 11° | 74 mm |
| ClarksonWestern Australia | 8 km NNW | 20° | 11° | 71 mm |
| GreenwoodWestern Australia | 10 km SSE | 21° | 11° | 74 mm |
| DuncraigWestern Australia | 10 km S | 20° | 11° | 71 mm |