Kwinana in Spring
In spring (September, October and November), Kwinana sees average daytime highs around 21°C and overnight lows near 13°C, with 110 mm of rain over about 18 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 24°C by late November. The sky is clear or mostly clear about 47% of the time across spring, and the air most often feels dry.
Spring is Kwinana's 3rd-best season to visit on our travel score. For the whole year in context, see Kwinana's year-round climate.
- Avg daytime high
- 21°C
- 3rd-warmest season
- Avg overnight low
- 13°C
- Rainfall
- 110 mm
- 18 wet days
- Avg wind
- 18 km/h
- Travel score
- 7.4
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Kwinana in Spring
Over the season highs climb from about 18°C in early September to 24°C by late November.
A typical spring day in Kwinana reaches about 21°C and drops to 13°C overnight. The warmest of the three months is November, the coolest September.
Kwinana 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 | 28° / 19° | 15 | 1.5 | 13.9 | 7.9 |
| Feb | 29° / 19° | 17 | 1.6 | 13.2 | 7.4 |
| Mar | 27° / 18° | 17 | 2.3 | 12.2 | 8.0 |
| Apr | 24° / 16° | 25 | 4.2 | 11.2 | 8.1 |
| May | 21° / 14° | 71 | 8 | 10.4 | 6.9 |
| Jun | 18° / 12° | 106 | 10.9 | 9.9 | 5.9 |
| Jul | 17° / 11° | 107 | 12.8 | 10.1 | 5.3 |
| Aug | 17° / 11° | 94 | 11.5 | 10.8 | 5.6 |
| Sep | 18° / 12° | 60 | 8.7 | 11.8 | 6.3 |
| Oct | 21° / 13° | 28 | 4.8 | 12.8 | 7.5 |
| Nov | 24° / 15° | 21 | 4 | 13.7 | 8.3 |
| Dec | 26° / 17° | 11 | 1.7 | 14.1 | 8.5 |
Cloud cover in Spring
The sky is clear or mostly clear about 47% of the time across spring.
Chance of precipitation in Spring
Kwinana gets around 110 mm of rain over 18 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 6.3 kWh/m².
Hazard calendar for Kwinana
In spring, Kwinana overlaps its cyclone and rainy season season. The full year is below, with each hazard's peak months called out.
Kwinana sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Kwinana's rainy season runs May–September, when most of the year's rain falls.
Is spring a good time to visit Kwinana?
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 Kwinana for general sightseeing.
What to pack for Kwinana in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Kwinana sees daytime highs around 21°C and nights near 13°C. Pack sun protection. Worth having: light clothes and rain gear. About 18 days see rain.
Sea temperature near Kwinana 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 19 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 Kwinana 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 Kwinana peaks around January 1 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 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 | 10 | 6 | 4 | 3 | 3 | 5 | 8 | 9 | 10 | 13 |
| Level | Extreme | Extreme | Extreme | High | Moderate | Moderate | Moderate | Moderate | Very high | Very high | Very high | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 12 | Extreme |
| Mar | 10 | 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 | Very high |
| Dec | 13 | Extreme |
Where is Kwinana?
Kwinana sits at 32.2°S, 115.8°E, 7 m above sea level, in Australia. The nearest listed city is Rockingham, 7.0 km away.
Topography around Kwinana
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Kwinana.
Within 3 km, the terrain around Kwinana has only modest variations in elevation — a maximum elevation change of 61 m around an average of 11 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 80 m; within 80 km, significant variations in elevation — a maximum elevation change of 565 m.
The land around Kwinana is covered by artificial surfaces (29%), trees (26%) and grassland (25%) within 3 km, water (38%) and trees (22%) within 16 km, and trees (43%) and water (36%) 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 Kwinana (-32.2301°, 115.7813°, elevation 7 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.