United StatesAlexander ArchipelagoVolcanic island
Kupreanof Island
2,813 km² rising to 1,117 m out of the Pacific Ocean.
Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
2,813km²
Area
395km
Coastline
measured on a simplified outline
1,117m
Highest point
785
People
5km
To the mainland
When to go to Kupreanof Island
Best to visit from January to March and 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 Alaska, United States
Kupreanof Island is an volcanic island in United States. It belongs to Alexander Archipelago. It covers 2,813 km², with 395 km of coastline. Its highest point rises to 1,117 m. About 785 people live on it. The nearest mainland is 5 km away.
Getting there
- Petersburg James A Johnson Airport (PSG)nearest airport with scheduled flights · 34 km in a straight lineCar hire in SitkaDiscover Cars · Affiliate link↗
- FerriesAlaska Marine Highway - Wrangell-Petersburg, Alaska Marine Highway - Petersburg-Juneau, Alaska Marine Highway - Petersburg-Sitka, Alaska Marine Highway - Petersburg - Kake
- 5 km from the mainlanddistance to the nearest continental coast
- From January to March and 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 Kupreanof Island.
- 17named peaksSherman Peak, De Long Peak, Hall Peak and 14 more
- 203waterfalls
Counted in OpenStreetMap, the map anyone can edit, inside the island's outline. A low number may only mean nobody has mapped it yet.
Cross-checked with our atlases
Kupreanof Island in our other atlases
Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Kupreanof Island, each with its own numbers.
5lakesLakeyas
Largest lake
1.6km²
Kah Sheets Lake
according to Lakeyas
Warmest lake
21.5°C
Irish Lakes
surface water, warmest month · according to Lakeyas
5 lakes
on Lakeyas, the lake atlas
- Kah Sheets Lake1.6km²
- Petersburg Lake0.72km²
- Towers Lake0.52km²
- Irish Lakes0.43km²
- Colp Lake0.11km²
Lakeyas is coming soonOpen Lakeyas ↗
The shape of the land.
On average the island stands 194 m above the sea. 64 % of it is below 200 m.
- 18 %0–50 m
- 46 %50–200 m
- 29 %200–500 m
- 7 %500–1,000 m
- <1 %1,000–2,000 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).
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 2 | 2 | 3 | 8 | 12 | 15 | 16 | 16 | 13 | 8 | 4 | 2 |
| Night low (°C) | -2 | -2 | -1 | 2 | 6 | 9 | 11 | 11 | 8 | 4 | 1 | -1 |
| Rain (mm) | 258 | 159 | 163 | 140 | 129 | 123 | 158 | 214 | 286 | 289 | 258 | 258 |
| Wet days | 22 | 18 | 20 | 19 | 18 | 18 | 19 | 20 | 22 | 23 | 23 | 23 |
| Sun h/day | 1.1 | 3.2 | 5.2 | 7.6 | 8.9 | 8.0 | 6.9 | 5.7 | 4.3 | 2.4 | 1.2 | 0.8 |
| Wind (km/h) | 16 | 14 | 14 | 12 | 11 | 9 | 8 | 9 | 11 | 13 | 15 | 16 |
Averages 1991–2020 for the ~55 km NASA POWER cell over the island; the sea from NOAA OISST.
Nearby
More islands nearby.
Baranof IslandUnited States4,065 km²1,643 m90 km away
Wrangell IslandUnited States542 km²961 m98 km away
Admiralty IslandUnited States4,362 km²1,477 m109 km away
Prince of Wales IslandUnited States6,675 km²1,058 m134 km away
Chichagof IslandUnited States5,388 km²1,192 m182 km away
Revillagigedo IslandUnited States2,913 km²1,321 m187 km away
Graham Island
Canada6,361 km²1,164 m380 km awayAbout these numbers
| Names, area, population | Wikidata (Q1633928) · CC0 |
|---|---|
| Outline | Natural Earth · public domain |
| 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 |
| Beaches, mountains, lakes and waterfalls | Lakeyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; HydroLAKES (Messager et al. 2016) · CC BY 4.0, LakeTEMP (Korver et al. 2024) · CC BY 4.0 |
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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