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Wellesley Islands, Australia
Queensland · Australia
Wellesley Islands is a small town in Queensland, Australia with a population of 1,133. Elevation: 33 ft (10 m). Average temperature: 80°F (26°C).
Data updated June 2026
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About Wellesley Islands
The Wellesley Islands, also known as the North Wellesley Islands, is a group of islands off the coast of Far North Queensland, Australia, in the Gulf of Carpentaria. It is a locality within the Shire of Mornington local government area. The traditional owners of the islands are the Lardil people. In the 2021 census, Wellesley Islands had a population of 1,022 people.
People
Economy
CHousing
BClimate
| Population | 1,133 |
| Population Density | 3 / sq mi |
| Elevation | 33 ft (10 m) |
| Coordinates | -16.6318°, 139.4014° |
| Timezone | Australia/Brisbane |
| Country | 🇦🇺 Australia |
| State / Province | Queensland |
| Average Temperature | 80°F (26°C) |
| January Average | 84°F (29°C) |
| July Average | 70°F (21°C) |
| Annual Precipitation | 44.3 inches (1,126 mm) |
| Annual Snowfall | 0.0 inches (0 cm) |
| Median Household Income | $9,565 |
| Median Age | 29.0 years |
About Wellesley Islands
Wellesley Islands is a small town in Australia (Queensland) with a population of 1,133. The city sits at an elevation of 33 feet (10 meters) above sea level. The average annual temperature is 80°F (26°C). Temperatures range from 84°F in January to 70°F in July. Annual precipitation averages 44.3 inches. The timezone is Australia/Brisbane.
Population
Language Spoken at Home
Social Characteristics
Wellesley Islands vs Australia Average
Income: Wellesley Islands vs Australia
Commute Mode
Income
| Median HH Income | $9,565 |
| 87% below Australia avg | |
| Per Capita Income | $9,565 |
| Avg Weekly Wage | $184 |
Employment & Poverty
| Unemployment | 7.7% |
| 114% above Australia avg | |
| Establishments (County) | 108 |
Business (County)
Tax & Cost of Living
Commute & Transportation
Walkability
Home Value Sources
Ownership Split
Home Values
| Census Median | $58,600 |
| 79% below Australia avg |
Real Estate Market (Redfin)
Rental Costs
| Census Median Rent | $293 |
| 75% below Australia avg |
Ownership & Property
| Homeownership | 66.0% |
| Owner-Occupied | 66.0% |
| Renter-Occupied | 34.0% |
| Housing Units | 453 |
Property Tax
Climate in Wellesley Islands
Wellesley Islands has an average annual temperature of 26.7°C (80°F). The hottest month is Dec (29.9°C), the coldest is Jul (21.6°C). Average annual precipitation is 0 mm.
Temperature
| Annual Average | 79.5°F |
| 47% above Australia avg | |
| January Average | 84°F (29°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 256 days/yr |
Geography
| Elevation | 33 ft (10 m) |
| Area | 386.9 sq mi (1,002.0 km²) |
| Population Density | 3/sq mi |
| Coordinates | -16.6318°N, 139.4014°W |
| Timezone | Australia/Brisbane |
Precipitation & Snow
Air Quality
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 84°F (29°C) | 11.8 in | Wettest |
| February | 83°F (29°C) | 11.3 in | |
| March | 83°F (28°C) | 9.7 in | |
| April | 81°F (27°C) | 1.6 in | |
| May | 77°F (25°C) | 0.3 in | |
| June | 72°F (22°C) | 0.3 in | |
| July | 70°F (21°C) | 0.1 in | Coldest |
| August | 72°F (22°C) | 0.0 in | Driest |
| September | 78°F (25°C) | 0.2 in | |
| October | 83°F (28°C) | 0.5 in | |
| November | 85°F (30°C) | 2.5 in | |
| December | 86°F (30°C) | 6.1 in | Warmest |
Wellesley Islands has a seasonal temperature swing of 16°F / from 70°F in July to 86°F in December. Total annual precipitation is 44.3 inches, with January being the wettest month (11.8") and August the driest (0.0").
Airports Near Wellesley Islands
3 airports within the area.
| Airport | IATA | Type |
|---|---|---|
| Bentinck Island Airport | — | Small Airport |
| Mornington Island Airport | ONG | Small Airport |
| Sweers Island Resort Airport | — | Small Airport |
Quick Facts
🇦🇺 About Australia
Public Holidays in Australia
25 public holidays this year
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Get ReportFrequently Asked Questions About Wellesley Islands
What is the population of Wellesley Islands?
Wellesley Islands has a population of 1,133 residents and is located in Australia. The population density is 3 people per square mile, spread across 386.9 square miles. The median age of residents is 29.0 years, which is younger than the national median of 38.9 years.
Is Wellesley Islands expensive to live in?
The median household income is $9,565, 87% below the national average of $75,149. The median home value is $58,600 (79% below the U.S. median). Renters pay a median of $293 per month, below the national average of $1,163. The home price-to-income ratio is 6.1x, which means housing is a stretch relative to local earnings.
What is the weather like in Wellesley Islands?
Wellesley Islands has a warm climate with an average annual temperature of 80°F (26°C). Winter temperatures average 84°F in January, while summers reach an average of 70°F in July. The area receives 256 sunny days per year, well above the national average of 205. Annual rainfall totals 44.3 inches.
How is the job market in Wellesley Islands?
The unemployment rate in Wellesley Islands is 7.7%, somewhat above the national average of 3.6%. Job seekers may face moderate competition. The average weekly wage is $184. There are 108 business establishments in the area.
How much does housing cost in Wellesley Islands?
The median home value in Wellesley Islands is $58,600. For renters, the median monthly rent is $293. The homeownership rate is 66.0%.