Australia
Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
1,005km²
Area
255km
Coastline
10m
Highest point
1,007
People
31°C
Warmest sea
December
21km
To the mainland
When to go to Mornington Island
Best for the beach from May to June and from August to October.
The sea is warmest in December (31 °C) and coolest in July (22 °C). You can swim comfortably all year (21 °C or more).
Averages 1991–2020. Sea: NOAA OISST, the water within 35 km of the coast. Air, rain and sun: NASA POWER. Best months weigh warm afternoons (23–30 °C), sea of 24 °C or more and few wet days.
Island in state of Queensland, Australia
Mornington Island is an island in Australia. It covers 1,005 km², with 255 km of coastline. Its highest point rises to 10 m. About 1,007 people live on it. The nearest mainland is 21 km away.
Getting there
- Normanton Airport (NTN)nearest airport with scheduled flights · 213 km in a straight lineCar hire at ISA airport (Mount Isa)Discover Cars · Affiliate link↗
- 21 km from the mainlanddistance to the nearest continental coast
- From May to June and from August to Octoberbest months to go (from 30 years of averages)
Plan the trip
Ferries, stays and things to do
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
The shape of the land.
On average the island stands 13 m above the sea. 100 % of it is below 200 m.
- 100 %0–50 m
Share of the island's area in each altitude band, from the Copernicus DEM (30 m, read at 30–240 m on large islands).
Size, for real
Next to islands you may know.
50 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
Towns on the island
- Wellesley Islands1,133 people
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 30 | 30 | 30 | 29 | 27 | 24 | 23 | 24 | 27 | 29 | 30 | 31 |
| Night low (°C) | 29 | 29 | 29 | 28 | 25 | 22 | 21 | 22 | 24 | 27 | 28 | 29 |
| Sea (°C) | 30 | 30 | 30 | 29 | 27 | 24 | 22 | 23 | 25 | 28 | 30 | 31 |
| Rain (mm) | 326 | 280 | 202 | 52 | 6 | 2 | 2 | 1 | 1 | 10 | 54 | 150 |
| Wet days | 25 | 23 | 17 | 6 | 1 | 0 | 0 | 0 | 0 | 3 | 9 | 19 |
| Sun h/day | 5.8 | 6.3 | 7.2 | 8.7 | 8.8 | 8.9 | 9.4 | 10.0 | 10.5 | 10.4 | 9.2 | 7.7 |
| Wind (km/h) | 18 | 18 | 17 | 18 | 22 | 24 | 22 | 19 | 17 | 16 | 15 | 16 |
Averages 1991–2020 for the ~55 km NASA POWER cell over the island; the sea from NOAA OISST.
Recent years
Warmer and cooler years at sea.
Each month's sea temperature compared with its 1991–2020 average, in degrees.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | +1.1 | +0.9 | +0.5 | +0.5 | −0.7 | −0.1 | +0.1 | +0.2 | +1.2 | +0.6 | +0.7 | +0.7 |
| 2021 | +0.7 | +0.6 | +0.4 | −0.2 | +0.1 | −0.1 | −0.2 | +0.8 | ±0.0 | +1.0 | ±0.0 | +0.1 |
| 2022 | +0.6 | +0.2 | +1.2 | +0.6 | +0.6 | +0.2 | −1.2 | −0.2 | +0.3 | +0.9 | +0.1 | −0.3 |
| 2023 | −0.5 | −0.5 | −0.7 | +0.2 | −1.6 | −0.2 | +0.5 | +1.0 | +0.6 | +0.1 | −0.1 | +0.5 |
| 2024 | +0.5 | ±0.0 | +0.1 | −0.5 | +0.3 | −0.2 | +0.4 | +1.1 | +1.7 | +1.1 | +0.5 | +0.6 |
| 2025 | +1.2 | +0.9 | +0.8 | −0.3 | −0.7 | −1.2 | −0.5 | −0.4 | −0.3 | +0.6 | −0.1 | −0.3 |
+1 warmer than usual −1 cooler than usual
About these numbers
| Names, area, population | Wikidata (Q1586110) · CC0 |
|---|---|
| Outline | © OpenStreetMap contributors · ODbL |
| Sea temperature | NOAA OISST v2.1 · 1991–2020 |
| Climate | NASA POWER · 1991–2020 |
| Relief, 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Beaches, ports, lighthouses, trails | © OpenStreetMap contributors · ODbL |
| Towns | GeoNames · CC BY 4.0 |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
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