
Lake · Sweden
Brunnsviken
Bay in Stockholm, Sweden
- Area
- 1.4km²
- Average depth
- 4.7m
- Elevation
- 9m a.s.l.
- Shoreline
- 11km
- Volume
- 0.006km³
Brunnsviken is a lake in Sweden. It covers 1.4 km². On average it is 4.7 m deep. Its surface lies 9 m above sea level.
Plan your visit
Stay, sail and get there
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The water
How warm is Brunnsviken?
The water is warmest in July, around 22 °C at the surface, and coldest in January, around 0 °C. The surface averages 20 °C or more from July to August: comfortable for most swimmers.
The lake usually freezes over for about 93 days a year, from around 6 December to 8 March.
On the shore, afternoons reach 23 °C on average in July and -1 °C in January. The driest month is April (37 mm of rain), the wettest June (78 mm).
Average surface temperature measured by the Landsat 8 satellite between 2013 and 2021 at the point furthest from the shore (118 readings). Shallow bays and beaches are often warmer.
From above
The whole lake from space
Month by month
The year at the lake, month by month
Not a forecast: these are averages over many years. Water is the 2013–2021 average; air, rain, sun and wind are the 1991–2020 average.
Water: 2013–2021 averageClimate: 1991–2020 average
| Month | Water°C | Water high°C | Air high°C | Air low°C | Rainmm | Rainy daysdays | Sunh/day | Windkm/h |
|---|---|---|---|---|---|---|---|---|
| January | Ice | — | -1 | -5 | 46 | 10 | 0.1 | 11 |
| February | Ice | — | 0 | -5 | 40 | 10 | 1.5 | 10 |
| March | 1 | 4 | 3 | -3 | 39 | 10 | 4.5 | 10 |
| April | 7 | 10 | 9 | 1 | 37 | 9 | 7.5 | 10 |
| May | 14 | 17 | 15 | 6 | 50 | 10 | 9.5 | 9 |
| June | 19 | 21 | 19 | 11 | 78 | 12 | 10.2 | 9 |
| July | 22 | 22 | 23 | 14 | 70 | 12 | 9.6 | 9 |
| August | 20 | 22 | 22 | 13 | 72 | 14 | 7.9 | 9 |
| September | 16 | 18 | 16 | 9 | 55 | 10 | 5.4 | 10 |
| October | 9 | 13 | 10 | 4 | 63 | 12 | 2.3 | 10 |
| November | 3 | 6 | 4 | 1 | 61 | 13 | 0.4 | 10 |
| December | Ice | — | 1 | -3 | 54 | 13 | 0.0 | 11 |
Water: LakeTEMP (Landsat 8, 2013–2021). Air, rain, sun and wind: NASA POWER, 1991–2020 averages. A rainy day has at least 1 mm of rain. Sunshine hours are derived from measured solar radiation.
Size & depth
How big, how deep
- On average, water stays in the lake for about 11 months before flowing out.
- Its catchment drains 33 km² of land.
- About 0.2 m³ of water flow out every second, on average.
- Its shoreline is 2.7 times longer than a circle of the same area: plenty of bays and inlets.
Around the shore
What's around Brunnsviken
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- 21beaches and swimming spots
Brunnsvikens strandbad, Ekhagens strandbad and 19 more
- —campsites
- 4boat hire and water-sport clubs
Brunnsvikens Kanotklubb, Kayakomat Stockholm Frescati, Akademiska roddföreningen
- 21marinas and slipways
SBS båtramp, Stocksundshamn, Stocksund, Albano båtklubb, Segelsällskapet Brunnsviken and 16 more
- —ferry piers
- 54viewpoints
Frösundatoppen, Italienska terassen and 52 more
- 26hotels, B&Bs and chalets
Stallmästaregården, Time Hotel, Ibis Styles Stockholm Odenplan, Svea Hostel, Hostel Dalagatan and 21 more
- —fishing spots
- 437restaurants and cafés
Towns on the shore
- Stockholm1,515,017 people
- Kungsholmen69,363 people
- Solna66,909 people
- Vasastaden58,458 people
- Östermalm36,418 people
- Danderyd32,425 people
- Råsunda16,877 people
- Djursholm8,856 people
Nearest airport with scheduled flights: Stockholm-Bromma Airport (BMA), 6 km in a straight line.
Car hire at ARN airport (Stockholm)Discover Cars · Affiliate linkOpenStreetMap is built by volunteers: when a number is low, it may just mean nobody has mapped it yet.
Recent years
How each month compared
Afternoon high on the shore. The first row is the reference, the 1991–2020 average in °C; the years below show the difference from it: warmer in orange, cooler in blue.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1991–2020 average | -1.0 | -0.3 | 3.2 | 9.2 | 14.9 | 19.4 | 22.7 | 21.5 | 16.5 | 9.5 | 4.2 | 0.7 |
| 2020 | +5.3 | +4.0 | +1.8 | +0.5 | −2.0 | +3.4 | −1.8 | +2.1 | +1.4 | +1.6 | +3.0 | +2.6 |
| 2021 | −0.3 | −1.2 | +1.4 | −1.1 | −1.5 | +3.9 | +3.1 | −1.8 | −1.2 | +1.2 | ±0.0 | −2.2 |
| 2022 | +1.4 | +1.3 | +2.5 | −0.9 | −0.6 | +2.5 | +0.5 | +2.7 | −1.2 | +2.7 | +1.6 | −2.2 |
| 2023 | +2.3 | +1.2 | −1.0 | −0.5 | +0.7 | +3.3 | −1.1 | −1.6 | +2.2 | −0.7 | −1.6 | −2.3 |
| 2024 | −1.8 | +1.2 | +1.1 | −2.4 | +3.3 | +0.9 | −1.3 | +0.7 | +1.9 | +2.2 | +0.3 | +1.5 |
| 2025 | +1.6 | +0.4 | +2.9 | +1.5 | −1.8 | +0.1 | +2.2 | −1.2 | +1.9 | +1.0 | +0.4 | +2.9 |
+1 warmer than usual −1 cooler than usual
About these numbers
| Outline, area, depth, volume | HydroLAKES v1.0 (Messager et al. 2016) · CC BY 4.0 |
|---|---|
| Water temperature and ice | LakeTEMP v1 (Korver et al. 2024), Landsat 8 2013–2021 · CC BY 4.0 |
| Air, rain, sun, wind | NASA POWER, 1991–2020 · public domain |
| Names and description | Wikidata (Q992937) · CC0 |
| Around the shore | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
Every figure is an average or a count from a public dataset. Licences and methods: data sources.

