Lake · Finland
Rautavesi
Lake in Sastamala, Finland
- Area
- 86.5km²
- Average depth
- 23m
- Elevation
- 43m a.s.l.
- Shoreline
- 264km
- Volume
- 2.0km³
Rautavesi is a lake in Finland. It covers 86.5 km². On average it is 23 m deep. Its surface lies 43 m above sea level.
Plan your visit
Stay, sail and get there
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The water
How warm is Rautavesi?
The water is warmest in July, around 20 °C at the surface, and coldest in January, around 0 °C. The surface averages 20 °C or more in July: comfortable for most swimmers.
The lake usually freezes over for about 137 days a year, from around 15 November to 31 March.
On the shore, afternoons reach 22 °C on average in July and -5 °C in January. The driest month is March (41 mm of rain), the wettest July (86 mm).
Average surface temperature measured by the Landsat 8 satellite between 2013 and 2021 at the point furthest from the shore (145 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 | — | -5 | -10 | 57 | 13 | 0.4 | 9 |
| February | Ice | — | -4 | -10 | 46 | 12 | 1.9 | 9 |
| March | Ice | — | 0 | -7 | 41 | 11 | 5.1 | 9 |
| April | 4 | 8 | 8 | -1 | 44 | 10 | 6.6 | 9 |
| May | 11 | 14 | 15 | 5 | 58 | 11 | 8.4 | 9 |
| June | 17 | 19 | 19 | 10 | 84 | 14 | 8.5 | 8 |
| July | 20 | 20 | 22 | 13 | 86 | 16 | 8.0 | 8 |
| August | 19 | 20 | 20 | 12 | 77 | 14 | 6.7 | 8 |
| September | 15 | 17 | 14 | 7 | 70 | 12 | 4.1 | 9 |
| October | 8 | 12 | 7 | 2 | 76 | 14 | 1.8 | 9 |
| November | Ice | — | 1 | -2 | 69 | 15 | 0.1 | 9 |
| December | Ice | — | -2 | -6 | 66 | 15 | 0.1 | 10 |
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 4 months before flowing out.
- Its catchment drains 20,067 km² of land.
- About 180 m³ of water flow out every second, on average.
- Its shoreline is 8.0 times longer than a circle of the same area: plenty of bays and inlets.
Around the shore
What's around Rautavesi
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- 12beaches and swimming spots
Mihari beach, Patakallio (Uimapaikka), Linnavuoren Uimaranta, Uimaranta, Siuron uimaranta and 7 more
- 2campsites
Tervakallio, VuoriCaravan
- —boat hire and water-sport clubs
- 7marinas and slipways
Karkun veneranta, Lukkisalmentien veneenlaskupaikka, Siuron venesatama and 4 more
- 3ferry piers
Jokisenjärven laivalaituri, Yrttitarha, Mihari ferry stop
- 9viewpoints
Lintutorni, Knuutilan kartano, Hakavuori, Tyyttikivi and 5 more
- 23hotels, B&Bs and chalets
Vammalan seurahuone, Frantsila Hyvän olon keskus, Putiikkihotelli Pyynpesä, Hotelli Ellivuori, Villa Satuniemi and 18 more
- —fishing spots
- 31restaurants and cafés
Towns on the shore
- Sastamala24,495 people
- Vammala16,635 people
- Hämeenkyrö10,351 people
Nearest airport with scheduled flights: Tampere-Pirkkala Airport (TMP), 31 km in a straight line.
Car hire at TMP airport (Tampere / Pirkkala)Discover Cars · Affiliate linkOpenStreetMap is built by volunteers: when a number is low, it may just mean nobody has mapped it yet.
Photos
Seen by visitors
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 | -4.8 | -4.2 | 0.3 | 7.8 | 14.7 | 18.6 | 21.6 | 19.7 | 14.3 | 6.8 | 1.3 | -2.4 |
| 2020 | +6.4 | +5.1 | +2.5 | −1.2 | −2.5 | +4.2 | −2.8 | +0.5 | +0.8 | +2.0 | +3.2 | +1.7 |
| 2021 | −1.9 | −2.6 | +0.8 | −0.2 | −0.8 | +4.5 | +2.2 | −1.4 | −2.3 | +2.0 | +0.1 | −3.7 |
| 2022 | +1.2 | +2.2 | +1.8 | −1.3 | −1.4 | +1.9 | −0.9 | +1.9 | −1.7 | +2.6 | +0.1 | −1.8 |
| 2023 | +2.7 | +2.7 | −0.9 | +1.0 | ±0.0 | +2.3 | −1.5 | +0.2 | +3.0 | −1.7 | −4.0 | −4.6 |
| 2024 | −3.5 | +0.1 | +1.2 | −2.3 | +4.1 | +1.7 | ±0.0 | +1.1 | +2.6 | +2.5 | +1.5 | +2.0 |
| 2025 | +3.1 | +2.3 | +3.8 | +0.8 | −1.8 | −0.9 | +2.4 | −1.4 | +2.1 | +1.3 | +2.3 | +3.7 |
+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 (Q5477363) · 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.
