Sweden
Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
182km²
Area
230km
Coastline
74m
Highest point
17°C
Warmest sea
August
When to go to Värmdö
Best to visit from July to August.
The sea is warmest in August (17 °C) and coolest in March (2 °C). The water never reaches 21 °C: bring a wetsuit.
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 of Sweden
Värmdö is an island in Sweden. It belongs to Stockholm archipelago. It covers 182 km², with 230 km of coastline. Its highest point rises to 74 m.
Getting there
- Stockholm-Bromma Airport (BMA)nearest airport with scheduled flights · 33 km in a straight lineCar hire at ARN airport (Stockholm)Discover Cars · Affiliate link↗
- FerriesOxdjupsleden, Tynningöleden, Waxholmsbolaget, Pendelbåt 84
- 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 Värmdö.
- 40beachesGrills havsbad, Grisslinge havsbad, Södersved havsbad and 37 more
- 43viewpointsPlattformen, Stockholmsberget, Utsikten and 40 more
- 4lighthousesSödernäs, Lindalen nedre, Nyvarp and 1 more
- 16ferry terminalsStenslätten, Hasseludden, Lillsved and 13 more
- 44marinasVelamsunds båtklubb, Grisslinge Båtsällskap, Lännersta Båtklubb and 41 more
- 18named peaksHimlaberget, Hjortberget, Kasberget and 15 more
- 1waterfalls
- 3castles and fortsOskar-Fredriksborg, Fredriksborgs fästning
- 76ruins and archaeological sitesKårboda gamla tomt, Boo 18:1, Boo 22:1 and 73 more
- 16waymarked walking routesTräsktrollens stig, Siggesta Vandringsled, Värmdöleden and 13 more
- 4campsitesIngarö havscamping Södersved, Caravan Club Storsved, Bolviks camping and 1 more
- 9hotels, guesthouses and apartments
- 60restaurants, 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.
Cross-checked with our atlases
Värmdö in our other atlases
Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Värmdö, each with its own numbers.
17beaches and covesCoastya
11lakesLakeyas
Largest lake
0.46km²
Insjön
12 m deep · according to Lakeyas
Deepest lake
19m
Sågsjön
according to Lakeyas
Warmest lake
23.6°C
Hemmestaträsket
surface water, warmest month · according to Lakeyas
Beach with the warmest sea
17.1°C
Grisslinge
sea in the warmest month · according to Coastya
17 beaches
on Coastya, the beach atlas
- Grisslinge17.1°C
- Skrävlafjärdencove16.8°C
- Fladencove17.1°C
- Sandvikencove17.1°C
- Bredvikencove16.8°C
- Sundsvikencove16.8°C
- Stora Räfsevikcove16.8°C
- Spevikencove16.8°C
9 more on CoastyaOpen Coastya ↗
11 lakes
on Lakeyas, the lake atlas
- Sågsjön19 m deep0.30km²
- Långträsk11 m deep0.21km²
- Ösbyträsk9 m deep0.20km²
- Korsmosjön6 m deep0.17km²
- Småristräsket0.15km²
- Hemmestaträsket0.13km²
- Myrsjön4 m deep0.11km²
- Kastmyraträsket0.10km²
3 more on LakeyasLakeyas is coming soonOpen Lakeyas ↗
The shape of the land.
On average the island stands 25 m above the sea. 100 % of it is below 200 m.
- 97 %0–50 m
- 3 %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.
20 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
Towns on the island
- Boo24,052 people
- Gustavsberg20,774 people
- Hemmesta4,577 people
- Kummelnäs3,360 people
- Kopparmora2,280 people
- Mörtnäs1,291 people
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 0 | 0 | 2 | 7 | 12 | 17 | 20 | 20 | 16 | 10 | 5 | 2 |
| Night low (°C) | -3 | -3 | -2 | 2 | 6 | 11 | 15 | 15 | 11 | 6 | 3 | -1 |
| Sea (°C) | 3 | 2 | 2 | 3 | 6 | 11 | 16 | 17 | 14 | 10 | 7 | 5 |
| Rain (mm) | 47 | 39 | 38 | 35 | 43 | 67 | 59 | 66 | 53 | 63 | 62 | 56 |
| Wet days | 11 | 10 | 9 | 8 | 9 | 10 | 11 | 12 | 10 | 12 | 13 | 14 |
| Sun h/day | 0.1 | 1.5 | 4.5 | 7.5 | 9.5 | 10.2 | 9.6 | 7.9 | 5.4 | 2.3 | 0.4 | 0.0 |
| Wind (km/h) | 18 | 16 | 15 | 14 | 12 | 12 | 12 | 13 | 15 | 16 | 17 | 18 |
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 | +1.8 | +2.3 | +2.9 | +2.4 | +0.7 | +1.7 | −0.1 | +0.7 | +0.6 | +1.7 | +2.0 | +2.3 |
| 2021 | +2.5 | +0.6 | +0.8 | +1.2 | +0.9 | +3.1 | +3.6 | +0.2 | +0.4 | +0.9 | +0.4 | −0.6 |
| 2022 | −0.3 | +0.5 | +1.3 | +1.2 | +1.2 | +2.0 | +1.4 | +1.4 | +1.1 | +1.5 | +1.2 | +0.2 |
| 2023 | +0.7 | +0.2 | +0.6 | +0.3 | +1.4 | +2.7 | −0.1 | −1.4 | +1.6 | −0.3 | −0.2 | −1.3 |
| 2024 | −1.4 | −0.1 | +0.3 | −0.3 | +0.3 | +1.0 | −0.8 | −0.1 | +1.3 | +1.2 | −0.5 | −0.7 |
| 2025 | −0.3 | ±0.0 | +0.8 | +1.4 | +0.5 | −0.3 | +0.9 | −0.9 | +1.4 | +1.6 | +2.0 | +1.1 |
+1 warmer than usual −1 cooler than usual
Photos
Seen by visitors.
Nearby
More islands nearby.
Finland
About these numbers
| Names, area, population | Wikidata (Q2382382) · 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 |
| Beaches, mountains, lakes and waterfalls | Coastya, Lakeyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; NOAA OISST; 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
Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?
Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.
beaches
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Every lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit 
mountains
Every summit in 3D: summit weather, the 0 °C line, huts and trails.Visit 
waterfalls
Every waterfall: height, flow month by month and when it roars.Coming soonVisit 
islands
Every island from the sea up: size, sea temperature, ferries and 3D.You are here
rivers
Every river from source to sea: the journey, the flow and the basin in numbers.Visit 
canyons
Every canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Visit