Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
75.2km²
Area
56km
Coastline
166m
Highest point
11,055
People
When to go to Vashon Island
Best to visit from July to August.
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 King County, Washington, United States of America
Vashon Island is an island in United States. It covers 75.2 km², with 56 km of coastline. Its highest point rises to 166 m. About 11,055 people live on it.
Getting there
- Seattle–Tacoma International Airport (SEA)nearest airport with scheduled flights · 13 km in a straight lineCar hire at SEA airport (Seattle)Discover Cars · Affiliate link↗
- FerriesPoint Defiance-Tahlequah Ferry
- From July to Augustbest 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.
On the island
What you find on Vashon Island.
- 4beachesCrow Beach, KVI Beach and 2 more
- 1viewpoints
- 4ferry terminalsTahlequah, Vashon Passenger Ferry & Vashon Ferry Dock, Vashon Ferry Terminal and 1 more
- 2marinasQuartermaster Marina, Quartermaster Yatch Club
- 1named peaksIndian Point
- 1ruins and archaeological sitesNike Missile Site
- 4campsitesLisabuela Campground, Cascadia Marine Trail Campsite - Wingehaven, Cascadia Marine Trail Campsite - Lisabuela and 1 more
- 2hotels, guesthouses and apartments
- 28restaurants, cafés and bars
Counted in OpenStreetMap, the map anyone can edit, inside the island's outline. A low number may only mean nobody has mapped it yet.
The shape of the land.
On average the island stands 93 m above the sea. 100 % of it is below 200 m.
- 13 %0–50 m
- 87 %50–200 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.
5 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
Towns on the island
- Vashon10,624 people
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 7 | 8 | 10 | 13 | 18 | 20 | 23 | 23 | 20 | 15 | 10 | 6 |
| Night low (°C) | 2 | 1 | 3 | 5 | 8 | 11 | 13 | 13 | 11 | 7 | 4 | 1 |
| Rain (mm) | 174 | 108 | 138 | 95 | 70 | 51 | 19 | 29 | 58 | 125 | 188 | 175 |
| Wet days | 20 | 16 | 19 | 17 | 13 | 12 | 5 | 5 | 9 | 16 | 20 | 20 |
| Sun h/day | 1.6 | 3.4 | 3.9 | 5.5 | 7.0 | 7.8 | 9.8 | 8.8 | 6.7 | 4.0 | 2.0 | 1.4 |
| Wind (km/h) | 9 | 8 | 9 | 8 | 6 | 6 | 5 | 6 | 6 | 8 | 9 | 9 |
Averages 1991–2020 for the ~55 km NASA POWER cell over the island; the sea from NOAA OISST.
Photos
Seen by visitors.




About these numbers
| Names, area, population | Wikidata (Q12834566) · 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.
The family
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Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.



