
Reservoir · Finland
Lokka Reservoir
Reservoir in Sodankylä, Finland
- Area
- 322km²
- Max depth
- 12m
- Average depth
- 4.5m
- Elevation
- 228m a.s.l.
- Shoreline
- 280km
- Volume
- 1.5km³
Lokka Reservoir is a reservoir in Finland. It covers 322 km². On average it is 4.5 m deep, and 12 m at its deepest point. Its surface lies 228 m above sea level.
Plan your visit
Stay, sail and get there
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The water
Water temperature
There is no reliable satellite record of the water temperature for this lake yet.
On the shore, afternoons reach 18 °C on average in July and -11 °C in January. The driest month is February (36 mm of rain), the wettest July (121 mm).
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.
Climate: 1991–2020 average
| Month | Water°C | Water high°C | Air high°C | Air low°C | Rainmm | Rainy daysdays | Sunh/day | Windkm/h |
|---|---|---|---|---|---|---|---|---|
| January | — | — | -11 | -16 | 44 | 12 | 0.8 | 12 |
| February | — | — | -10 | -16 | 36 | 11 | 2.7 | 12 |
| March | — | — | -5 | -12 | 38 | 12 | 6.4 | 12 |
| April | — | — | 0 | -6 | 47 | 13 | 8.3 | 11 |
| May | — | — | 7 | 1 | 80 | 17 | 7.5 | 10 |
| June | — | — | 14 | 7 | 92 | 19 | 7.8 | 9 |
| July | — | — | 18 | 10 | 121 | 20 | 6.6 | 8 |
| August | — | — | 15 | 8 | 106 | 19 | 4.9 | 8 |
| September | — | — | 9 | 4 | 87 | 17 | 3.1 | 8 |
| October | — | — | 1 | -3 | 64 | 16 | 1.2 | 8 |
| November | — | — | -5 | -10 | 53 | 14 | 0.5 | 10 |
| December | — | — | -8 | -14 | 51 | 14 | — | 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 12 months before flowing out.
- Its catchment drains 4,862 km² of land.
- About 46 m³ of water flow out every second, on average.
- Its shoreline is 4.4 times longer than a circle of the same area: plenty of bays and inlets.
Around the shore
What's around Lokka Reservoir
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- 6beaches and swimming spots
Uimaranta and 5 more
- 1campsites
Sompiojärven leirintäalue
- —boat hire and water-sport clubs
- 5marinas and slipways
Venesatama, Kalasatama
- —ferry piers
- 4viewpoints
Sompiojärven lintutorni, Bird-watching tower, Näkötorni, Lokka lintutorni
- 2hotels, B&Bs and chalets
Hallanvaara
- —fishing spots
- 1restaurants and cafés
Nearest airport with scheduled flights: Ivalo Airport (IVL), 79 km in a straight line.
Car hire at IVL airport (Ivalo)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 | -10.6 | -9.9 | -5.1 | -0.2 | 7.2 | 13.8 | 17.5 | 14.8 | 8.8 | 0.7 | -5.3 | -7.9 |
| 2020 | +3.1 | +3.0 | +1.3 | −0.9 | −2.8 | +3.3 | −0.4 | +0.2 | +0.9 | +1.7 | +3.7 | +0.9 |
| 2021 | −2.1 | −1.4 | +0.7 | +0.3 | −2.4 | +3.0 | +0.8 | −0.7 | −1.9 | +0.3 | −1.0 | −2.6 |
| 2022 | +2.5 | +1.2 | +2.3 | −0.2 | +0.4 | +2.2 | +1.1 | +2.2 | −0.4 | +2.0 | ±0.0 | −1.5 |
| 2023 | +4.1 | +3.6 | −1.9 | +0.4 | +2.6 | +1.6 | −0.9 | +2.4 | +2.9 | −2.4 | −3.4 | −3.9 |
| 2024 | −1.4 | +1.0 | +1.8 | −2.0 | +1.5 | +3.5 | +2.2 | +3.4 | +4.0 | +2.4 | +1.7 | +0.8 |
| 2025 | +0.7 | +5.0 | +2.1 | −0.5 | −0.2 | −0.9 | +2.5 | +0.8 | +3.3 | +2.8 | −0.9 | +0.8 |
+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 (Q1868580) · 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.

