Willetton weather in September
In September, Willetton sees average daytime highs of 19°C and overnight lows near 9°C, with 60 mm of rain across 8.7 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 5th-wettest month of the year here.
Highs climb over the month, from about 18°C in the first days to 20°C by the end. The sky is clear or mostly clear about 37% of the time in September, and the air most often feels dry.
Daylight stretches from about 11 h 18 min at the start of September to 12 h 18 min by month's end. Set against the rest of the year, September is Willetton's 9th-clearest and 7th-windiest month. For the whole year in context, see Willetton's year-round climate.
- Daytime high
- 19°
- 9th warmest
- Overnight low
- 9°
- 3rd coldest
- Rainfall
- 60 mm
- 8.7 wet days
- Daylight
- 11 h 48 min
- 6:17 AM – 6:05 PM
- Cloud cover
- 48%
- 9th clearest
- Wind
- 14 km/h
- 7th windiest
- Solar energy
- 4.72 kWh/m²
- Travel score
- 6.4
- out of 10
Willetton is suburb of Perth, Western Australia.
- Density
- 2,214/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Highs climb over the month, from about 18°C in the first days to 20°C by the end.
A typical September day in Willetton reaches about 19°C in the afternoon and slips back to 9°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 23°C. Set against its neighbours, September runs about 2°C warmer than August and about 3°C cooler than October.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 |
| Avg low (°C) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 18 | 9 |
| 2 | 18 | 9 |
| 3 | 18 | 9 |
| 4 | 18 | 9 |
| 5 | 18 | 9 |
| 6 | 18 | 9 |
| 7 | 18 | 9 |
| 8 | 18 | 9 |
| 9 | 18 | 9 |
| 10 | 18 | 9 |
| 11 | 18 | 9 |
| 12 | 19 | 9 |
| 13 | 19 | 9 |
| 14 | 19 | 9 |
| 15 | 19 | 9 |
| 16 | 19 | 9 |
| 17 | 19 | 9 |
| 18 | 19 | 9 |
| 19 | 19 | 10 |
| 20 | 19 | 10 |
| 21 | 19 | 10 |
| 22 | 19 | 10 |
| 23 | 19 | 10 |
| 24 | 19 | 10 |
| 25 | 19 | 10 |
| 26 | 20 | 10 |
| 27 | 20 | 10 |
| 28 | 20 | 10 |
| 29 | 20 | 10 |
| 30 | 20 | 10 |
Willetton weather by month
How September compares with the rest of the year at a glance. September is the 9th-warmest and 5th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 31° / 18° | 19 | 2.1 | 13.9 | 5.7 |
| Feb | 31° / 19° | 17 | 1.7 | 13.2 | 5.7 |
| Mar | 29° / 17° | 18 | 2.7 | 12.2 | 7.0 |
| Apr | 25° / 14° | 26 | 4 | 11.2 | 8.0 |
| May | 21° / 11° | 62 | 7 | 10.4 | 7.1 |
| Jun | 18° / 9° | 87 | 10 | 9.9 | 6.0 |
| Jul | 17° / 9° | 96 | 11.6 | 10.1 | 5.3 |
| Aug | 17° / 9° | 87 | 10.7 | 10.8 | 5.7 |
| Sep | 19° / 9° | 60 | 8.7 | 11.8 | 6.4 |
| Oct | 22° / 11° | 29 | 5 | 12.8 | 7.8 |
| Nov | 26° / 14° | 22 | 4 | 13.6 | 8.1 |
| Dec | 29° / 16° | 11 | 1.9 | 14.1 | 7.1 |
Cloud cover in September
The sky is clear or mostly clear about 37% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 24% of September, with mostly cloudy or overcast conditions the remaining 39%. Skies tend to open up as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 61 | 60 | 60 | 60 | 61 | 61 | 61 | 61 | 60 | 60 | 60 | 61 | 61 | 60 | 60 | 60 | 60 | 60 | 60 | 62 | 62 | 62 |
| Cloudier (%) | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 39 | 40 | 40 | 40 | 39 | 39 | 39 | 39 | 40 | 40 | 40 | 39 | 39 | 40 | 40 | 40 | 40 | 40 | 40 | 38 | 38 | 38 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 62 | 38 |
| 2 | 62 | 38 |
| 3 | 62 | 38 |
| 4 | 62 | 38 |
| 5 | 62 | 38 |
| 6 | 62 | 38 |
| 7 | 62 | 38 |
| 8 | 62 | 38 |
| 9 | 61 | 39 |
| 10 | 60 | 40 |
| 11 | 60 | 40 |
| 12 | 60 | 40 |
| 13 | 61 | 39 |
| 14 | 61 | 39 |
| 15 | 61 | 39 |
| 16 | 61 | 39 |
| 17 | 60 | 40 |
| 18 | 60 | 40 |
| 19 | 60 | 40 |
| 20 | 61 | 39 |
| 21 | 61 | 39 |
| 22 | 60 | 40 |
| 23 | 60 | 40 |
| 24 | 60 | 40 |
| 25 | 60 | 40 |
| 26 | 60 | 40 |
| 27 | 60 | 40 |
| 28 | 62 | 38 |
| 29 | 62 | 38 |
| 30 | 62 | 38 |
Chance of precipitation in September
Willetton gets around 60 mm of rain over 8.7 wet days in September. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 29% and peaks near 34% on the wettest days. The odds ease toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 34 | 34 | 34 | 34 | 34 | 33 | 33 | 32 | 31 | 31 | 30 | 30 | 29 | 29 | 28 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 26 | 25 | 25 | 24 | 23 | 23 | 22 | 22 |
| Rain chance (%) | |
|---|---|
| 1 | 34 |
| 2 | 34 |
| 3 | 34 |
| 4 | 34 |
| 5 | 34 |
| 6 | 33 |
| 7 | 33 |
| 8 | 32 |
| 9 | 31 |
| 10 | 31 |
| 11 | 30 |
| 12 | 30 |
| 13 | 29 |
| 14 | 29 |
| 15 | 28 |
| 16 | 28 |
| 17 | 28 |
| 18 | 27 |
| 19 | 27 |
| 20 | 27 |
| 21 | 26 |
| 22 | 26 |
| 23 | 26 |
| 24 | 25 |
| 25 | 25 |
| 26 | 24 |
| 27 | 23 |
| 28 | 23 |
| 29 | 22 |
| 30 | 22 |
Humidity in September
Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the dry band about 95% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 96 | 96 | 96 | 96 | 96 | 96 | 96 | 96 | 95 | 95 | 95 | 95 | 95 | 95 | 94 | 94 | 94 | 94 | 95 | 95 | 95 | 95 | 95 | 95 | 95 | 95 | 95 | 95 | 94 | 94 |
| Comfortable (%) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 |
| Dry (%) | Comfortable (%) | |
|---|---|---|
| 1 | 96 | 4 |
| 2 | 96 | 4 |
| 3 | 96 | 4 |
| 4 | 96 | 4 |
| 5 | 96 | 4 |
| 6 | 96 | 4 |
| 7 | 96 | 4 |
| 8 | 96 | 4 |
| 9 | 95 | 5 |
| 10 | 95 | 5 |
| 11 | 95 | 5 |
| 12 | 95 | 5 |
| 13 | 95 | 5 |
| 14 | 95 | 5 |
| 15 | 94 | 6 |
| 16 | 94 | 6 |
| 17 | 94 | 6 |
| 18 | 94 | 6 |
| 19 | 95 | 5 |
| 20 | 95 | 5 |
| 21 | 95 | 5 |
| 22 | 95 | 5 |
| 23 | 95 | 5 |
| 24 | 95 | 5 |
| 25 | 95 | 5 |
| 26 | 95 | 5 |
| 27 | 95 | 5 |
| 28 | 95 | 5 |
| 29 | 94 | 6 |
| 30 | 94 | 6 |
Wind in September
Winds average 14 km/h in September.
Across September, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 13 | light breeze |
| 2 | 13 | light breeze |
| 3 | 13 | light breeze |
| 4 | 14 | light breeze |
| 5 | 14 | light breeze |
| 6 | 14 | light breeze |
| 7 | 14 | light breeze |
| 8 | 14 | light breeze |
| 9 | 14 | light breeze |
| 10 | 14 | light breeze |
| 11 | 14 | light breeze |
| 12 | 14 | light breeze |
| 13 | 14 | light breeze |
| 14 | 14 | light breeze |
| 15 | 14 | light breeze |
| 16 | 14 | light breeze |
| 17 | 14 | light breeze |
| 18 | 14 | light breeze |
| 19 | 14 | light breeze |
| 20 | 14 | light breeze |
| 21 | 14 | light breeze |
| 22 | 14 | light breeze |
| 23 | 14 | light breeze |
| 24 | 14 | light breeze |
| 25 | 14 | light breeze |
| 26 | 14 | light breeze |
| 27 | 14 | light breeze |
| 28 | 14 | light breeze |
| 29 | 14 | light breeze |
| 30 | 14 | light breeze |
Sunrise & sunset in September
Daylight runs from about 11 h 18 min at the start of September to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 60 minutes over September. Sunrise moves from 6:37 AM to 5:57 AM, and sunset from 5:55 PM to 6:14 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.3 | 11.3 | 11.4 | 11.4 | 11.4 | 11.5 | 11.5 | 11.5 | 11.6 | 11.6 | 11.6 | 11.7 | 11.7 | 11.7 | 11.8 | 11.8 | 11.8 | 11.9 | 11.9 | 11.9 | 12.0 | 12.0 | 12.0 | 12.1 | 12.1 | 12.1 | 12.2 | 12.2 | 12.2 | 12.3 |
| Sunrise (AM) | 6:37 | 6:36 | 6:34 | 6:33 | 6:32 | 6:30 | 6:29 | 6:28 | 6:26 | 6:25 | 6:23 | 6:22 | 6:21 | 6:19 | 6:18 | 6:17 | 6:15 | 6:14 | 6:12 | 6:11 | 6:10 | 6:08 | 6:07 | 6:06 | 6:04 | 6:03 | 6:01 | 6:00 | 5:59 | 5:57 |
| Sunset (PM) | 5:55 | 5:56 | 5:57 | 5:57 | 5:58 | 5:59 | 5:59 | 6:00 | 6:01 | 6:01 | 6:02 | 6:02 | 6:03 | 6:04 | 6:04 | 6:05 | 6:06 | 6:06 | 6:07 | 6:08 | 6:08 | 6:09 | 6:09 | 6:10 | 6:11 | 6:11 | 6:12 | 6:13 | 6:13 | 6:14 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.3 | 6:37 | 5:55 |
| 2 | 11.3 | 6:36 | 5:56 |
| 3 | 11.4 | 6:34 | 5:57 |
| 4 | 11.4 | 6:33 | 5:57 |
| 5 | 11.4 | 6:32 | 5:58 |
| 6 | 11.5 | 6:30 | 5:59 |
| 7 | 11.5 | 6:29 | 5:59 |
| 8 | 11.5 | 6:28 | 6:00 |
| 9 | 11.6 | 6:26 | 6:01 |
| 10 | 11.6 | 6:25 | 6:01 |
| 11 | 11.6 | 6:23 | 6:02 |
| 12 | 11.7 | 6:22 | 6:02 |
| 13 | 11.7 | 6:21 | 6:03 |
| 14 | 11.7 | 6:19 | 6:04 |
| 15 | 11.8 | 6:18 | 6:04 |
| 16 | 11.8 | 6:17 | 6:05 |
| 17 | 11.8 | 6:15 | 6:06 |
| 18 | 11.9 | 6:14 | 6:06 |
| 19 | 11.9 | 6:12 | 6:07 |
| 20 | 11.9 | 6:11 | 6:08 |
| 21 | 12.0 | 6:10 | 6:08 |
| 22 | 12.0 | 6:08 | 6:09 |
| 23 | 12.0 | 6:07 | 6:09 |
| 24 | 12.1 | 6:06 | 6:10 |
| 25 | 12.1 | 6:04 | 6:11 |
| 26 | 12.1 | 6:03 | 6:11 |
| 27 | 12.2 | 6:01 | 6:12 |
| 28 | 12.2 | 6:00 | 6:13 |
| 29 | 12.2 | 5:59 | 6:13 |
| 30 | 12.3 | 5:57 | 6:14 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 4.72 kWh/m².
For context, solar energy here swings from a low near 2.55 kWh/m² to a high of 8.36 kWh/m² in December across the year — September's 4.72 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.1 | 4.1 | 4.2 | 4.2 | 4.2 | 4.3 | 4.3 | 4.4 | 4.4 | 4.5 | 4.5 | 4.6 | 4.6 | 4.7 | 4.7 | 4.8 | 4.8 | 4.9 | 4.9 | 5.0 | 5.0 | 5.1 | 5.1 | 5.2 | 5.2 | 5.3 | 5.3 | 5.4 | 5.4 | 5.5 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.1 | Bright |
| 2 | 4.1 | Bright |
| 3 | 4.2 | Bright |
| 4 | 4.2 | Bright |
| 5 | 4.2 | Bright |
| 6 | 4.3 | Bright |
| 7 | 4.3 | Bright |
| 8 | 4.4 | Bright |
| 9 | 4.4 | Bright |
| 10 | 4.5 | Bright |
| 11 | 4.5 | Bright |
| 12 | 4.6 | Bright |
| 13 | 4.6 | Bright |
| 14 | 4.7 | Bright |
| 15 | 4.7 | Bright |
| 16 | 4.8 | Bright |
| 17 | 4.8 | Bright |
| 18 | 4.9 | Bright |
| 19 | 4.9 | Bright |
| 20 | 5.0 | Bright |
| 21 | 5.0 | Bright |
| 22 | 5.1 | Bright |
| 23 | 5.1 | Bright |
| 24 | 5.2 | Bright |
| 25 | 5.2 | Bright |
| 26 | 5.3 | Bright |
| 27 | 5.3 | Bright |
| 28 | 5.4 | Bright |
| 29 | 5.4 | Bright |
| 30 | 5.5 | Bright |
Hazard calendar for Willetton
In September, Willetton sits inside its rainy season season. The full year is below, with each hazard's peak months called out.
Willetton sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Willetton's rainy season runs May–September, when most of the year's rain falls.
Is September a good time to visit Willetton?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is a reasonable time to visit Willetton for sightseeing.
What to pack for Willetton in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Willetton sees daytime highs around 19°C and nights near 9°C. Worth packing: rain gear and sun protection. About 9 days see rain.
Sea temperature near Willetton in September
The nearest coast averages about 19°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 26 km away) is warmest in February at about 22°C and coldest in September near 19°C.
It's comfortable for a long swim from Nov 26 to Jul 9 — about 7.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 22 | 22 | 22 | 22 | 22 | 21 | 20 | 19 | 19 | 19 | 20 | 21 |
| Comfort | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Cool | Cool | Cool | Cool | Cool | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 22 | Refreshing |
| Feb | 22 | Refreshing |
| Mar | 22 | Refreshing |
| Apr | 22 | Refreshing |
| May | 22 | Refreshing |
| Jun | 21 | Refreshing |
| Jul | 20 | Cool |
| Aug | 19 | Cool |
| Sep | 19 | Cool |
| Oct | 19 | Cool |
| Nov | 20 | Cool |
| Dec | 21 | Refreshing |
UV index in Willetton in September
Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Willetton peaks around December 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 12 | 11 | 6 | 4 | 3 | 3 | 5 | 8 | 9 | 10 | 13 |
| Level | Extreme | Extreme | Extreme | High | Moderate | Moderate | Moderate | Moderate | Very high | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 12 | Extreme |
| Mar | 11 | Extreme |
| Apr | 6 | High |
| May | 4 | Moderate |
| Jun | 3 | Moderate |
| Jul | 3 | Moderate |
| Aug | 5 | Moderate |
| Sep | 8 | Very high |
| Oct | 9 | Very high |
| Nov | 10 | Extreme |
| Dec | 13 | Extreme |
Air quality in Willetton in September
Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.
Air quality in Willetton is worst in May — around 18 µg/m³ PM2.5 (moderate), about 4.4× the cleanest month (December, 4 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 7 | 5 | 10 | 18 | 8 | 6 | 7 | 15 | 15 | 10 | 4 |
| Level | Good | Good | Good | Good | Moderate | Good | Good | Good | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 7 | Good |
| Mar | 5 | Good |
| Apr | 10 | Good |
| May | 18 | Moderate |
| Jun | 8 | Good |
| Jul | 6 | Good |
| Aug | 7 | Good |
| Sep | 15 | Moderate |
| Oct | 15 | Moderate |
| Nov | 10 | Good |
| Dec | 4 | Good |
Where is Willetton?
Willetton sits at 32.1°S, 115.9°E, 22 m above sea level, in Australia. The nearest listed city is Canning Vale, 3.0 km away.
Topography around Willetton
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Willetton.
Within 3 km, the terrain around Willetton has only modest variations in elevation — a maximum elevation change of 46 m around an average of 19 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 311 m; within 80 km, significant variations in elevation — a maximum elevation change of 567 m.
The land around Willetton is covered by artificial surfaces (75%) within 3 km, artificial surfaces (48%) and trees (24%) within 16 km, and trees (43%) and water (31%) within 80 km.
Australia travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type I
- 230 V · 50 Hz
- Prices
- ≈ 90% of US
- price level, 2025
- GDP per capita
- $65,130
- 2025
- Happiness
- 6.9 / 10
- World Happiness, 2025
- Homicide rate
- 0.9
- per 100k, 2023
- Road deaths
- 4.9
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Willetton (-32.0525°, 115.8878°, elevation 22 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).