Rottnest Island, Australia

Full City Profile

4.2 /5.0

A Great

565 Population 44/sq mi density

33 ft Elevation 10 meters

66°F Avg Temperature 19°C

Overall

4.2 / 5.0

Strong

Economy

3.3 / 5.0

$37,586 median income, 3.1% unemployment

A+

Affordability

5.0 / 5.0

$63,600 home value, $318/mo rent

Rottnest Island enjoys a temperate climate with an average annual temperature of 66°F (19°C). Winters average 71°F in January while summers reach 61°F in July. The area gets 352 sunny days per year. Annual precipitation totals 18.8 inches. The area receives 0.0 inches of snow annually.

Temperature

71°F Jan (22°C) 61°F Jul (16°C)

Annual Average	66.1°F
	22% above US avg
January Average	71°F (22°C)
July Average	61°F (16°C)
Sunny Days	352 days/yr

Geography

Elevation	33 ft (10 m)
Area	12.8 sq mi (33.0 km²)
Population Density	44/sq mi
Coordinates	-31.9952°N, 115.5404°W
Timezone	Australia/Perth

Precipitation & Snow

Annual Rainfall 18.8"

50% below US avg

Snowfall 0.0"

Wettest Month (Jul) 5.08"

Driest Month (Dec) 0.24"

Air Quality

Earthquake History

8 earthquakes (M2.5+) within 150 km since 1990. Strongest: M5.2. Most recent: M2.8 on May 6, 2005.

Jan 17, 1990	30 km E of Northam, Australia	M5.2	142 km
Dec 20, 1996	61 km N of Toodyay, Australia	M4.5	148 km
Mar 24, 2003	36 km NE of York, Australia	M4.0	150 km
Mar 15, 1999	35 km NE of York, Australia	M3.7	148 km
May 6, 2005	5 km NW of Bullsbrook, Australia	M2.8	57 km
Jul 18, 2003	42 km N of Toodyay, Australia	M2.8	132 km
Mar 15, 2005	46 km NE of Boddington, Australia	M2.7	136 km
Apr 15, 2005	10 km SSW of York, Australia	M2.5	111 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

1 hurricane (Cat 1+) within 500 km since 1980. Strongest: Category 1. Most recent: Seroja (2021).

Year	Name	Category	Closest
2021	Seroja	Category 1	291 km

Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	71°F (22°C)	0.4 in
February	75°F (24°C)	0.7 in	Warmest
March	73°F (23°C)	0.4 in
April	68°F (20°C)	1.2 in
May	64°F (18°C)	3.6 in
June	60°F (16°C)	4.8 in
July	61°F (16°C)	5.1 in	Wettest
August	58°F (14°C)	3.4 in	Coldest
September	59°F (15°C)	2.2 in
October	62°F (16°C)	1.3 in
November	66°F (19°C)	0.8 in
December	70°F (21°C)	0.2 in	Driest

Rottnest Island has a seasonal temperature swing of 17°F / from 58°F in August to 75°F in February. Total annual precipitation is 24.2 inches, with July being the wettest month (5.1") and December the driest (0.2").

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