Perth in Spring
In spring (September, October and November), Perth sees average daytime highs around 21°C and overnight lows near 14°C, with 102 mm of rain over about 17 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs climb from about 18°C in early September to 25°C by late November. The sky is clear or mostly clear about 49% of the time across spring, and the air most often feels dry.
Spring is Perth's 3rd-best season to visit on our travel score. For the whole year in context, see Perth's year-round climate.
- Avg daytime high
- 21°C
- 3rd-warmest season
- Avg overnight low
- 14°C
- Rainfall
- 102 mm
- 17 wet days
- Avg wind
- 18 km/h
- Travel score
- 7.5
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Perth in Spring
Over the season highs climb from about 18°C in early September to 25°C by late November.
A typical spring day in Perth reaches about 21°C and drops to 14°C overnight. The warmest of the three months is November, the coolest September.
Perth weather by month
How the three spring months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 19° | 17 | 1.8 | 13.9 | 7.4 |
| Feb | 29° / 20° | 17 | 1.5 | 13.2 | 7.2 |
| Mar | 27° / 19° | 18 | 2.3 | 12.2 | 7.8 |
| Apr | 24° / 16° | 24 | 4.1 | 11.2 | 8.1 |
| May | 21° / 14° | 67 | 7.8 | 10.4 | 7.1 |
| Jun | 18° / 12° | 98 | 10.7 | 10 | 6.1 |
| Jul | 17° / 11° | 102 | 12.5 | 10.1 | 5.5 |
| Aug | 18° / 11° | 89 | 11.1 | 10.8 | 5.8 |
| Sep | 19° / 12° | 55 | 8.5 | 11.8 | 6.5 |
| Oct | 21° / 13° | 27 | 4.7 | 12.8 | 7.6 |
| Nov | 24° / 16° | 19 | 3.7 | 13.6 | 8.4 |
| Dec | 27° / 18° | 9 | 1.6 | 14.1 | 8.4 |
Cloud cover in Spring
The sky is clear or mostly clear about 49% of the time across spring.
Chance of precipitation in Spring
Perth gets around 102 mm of rain over 17 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 18 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 18 min in early September to 13 h 54 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 6.4 kWh/m².
Hazard calendar for Perth
In spring, Perth overlaps its cyclone and rainy season season. The full year is below, with each hazard's peak months called out.
Perth sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Perth's rainy season runs May–September, when most of the year's rain falls.
Is spring a good time to visit Perth?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is one of the better times to visit Perth for general sightseeing.
What to pack for Perth in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Perth sees daytime highs around 21°C and nights near 14°C. Pack sun protection. Worth having: light clothes and rain gear. About 17 days see rain.
Sea temperature near Perth in Spring
The nearest coast averages about 19°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 24 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 22 to Jul 12 — about 7.7 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 Perth in Spring
Clear-sky midday UV across spring averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Perth 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 |
Where is Perth?
Perth sits at 32.0°S, 115.9°E, 34 m above sea level, in Australia. The nearest listed city is Dianella, 7.0 km away.
Topography around Perth
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Perth.
Within 3 km, the terrain around Perth has only modest variations in elevation — a maximum elevation change of 73 m around an average of 18 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 139 m; within 80 km, significant variations in elevation — a maximum elevation change of 564 m.
The land around Perth is covered by artificial surfaces (55%) and water (20%) within 3 km, artificial surfaces (56%) within 16 km, and trees (41%) and water (32%) 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 Perth (-31.9522°, 115.8614°, elevation 34 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.