Crater lake · Indonesia
Lake Ranau
Lake in Indonesia
- Area
- 125km²
- Max depth
- 229m
- Average depth
- 77m
- Elevation
- 543m a.s.l.
- Shoreline
- 61km
- Volume
- 9.6km³
Lake Ranau is a crater lake in Indonesia. It covers 125 km². On average it is 77 m deep, and 229 m at its deepest point. Its surface lies 543 m above sea level.
Plan your visit
Stay, sail and get there
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The water
How warm is Lake Ranau?
The water is warmest in December, around 27 °C at the surface, and coldest in June, around 27 °C. The surface averages 20 °C or more from January to December: comfortable for most swimmers.
It does not normally freeze in winter.
On the shore, afternoons reach 28 °C on average in October and 27 °C in January. The driest month is August (97 mm of rain), the wettest December (345 mm).
Average surface temperature measured by the Landsat 8 satellite between 2013 and 2021 at the point furthest from the shore (69 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 | 27 | 27 | 27 | 23 | 306 | 27 | 4.9 | 8 |
| February | 27 | 27 | 27 | 23 | 269 | 24 | 4.7 | 8 |
| March | 27 | 27 | 27 | 24 | 268 | 26 | 5.4 | 8 |
| April | 27 | 27 | 27 | 24 | 247 | 24 | 5.9 | 7 |
| May | 27 | 27 | 28 | 24 | 156 | 20 | 6.3 | 7 |
| June | 27 | 27 | 27 | 23 | 128 | 16 | 6.4 | 8 |
| July | 27 | 27 | 27 | 23 | 119 | 14 | 6.4 | 9 |
| August | 27 | 27 | 28 | 22 | 97 | 13 | 6.4 | 10 |
| September | 27 | 27 | 28 | 22 | 112 | 14 | 6.1 | 10 |
| October | 27 | 27 | 28 | 23 | 167 | 20 | 5.4 | 10 |
| November | 27 | 27 | 28 | 23 | 243 | 25 | 5.1 | 8 |
| December | 27 | 27 | 27 | 23 | 345 | 28 | 4.7 | 8 |
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 14 years before flowing out.
- Its catchment drains 505 km² of land.
- About 22 m³ of water flow out every second, on average.
Around the shore
What's around Lake Ranau
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- 1beaches and swimming spots
- —campsites
- —boat hire and water-sport clubs
- —marinas and slipways
- —ferry piers
- 18viewpoints
- 15hotels, B&Bs and chalets
Pemandian Umum, HOME STAY WAY TUBA, Penginapan Sukabanjar and 12 more
- 1fishing spots
- 3restaurants and cafés
Towns on the shore
- Banding Agung
Nearest airport with scheduled flights: Radin Inten II International Airport (TKG), 145 km in a straight line.
Car hire at CGK airport (Jakarta)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 | 26.7 | 26.9 | 27.0 | 27.3 | 27.7 | 27.4 | 27.3 | 27.9 | 28.3 | 28.4 | 27.6 | 26.7 |
| 2020 | +0.9 | +0.9 | +0.4 | +0.5 | +0.2 | +0.2 | +0.2 | −0.1 | −0.4 | −1.3 | +0.1 | −0.3 |
| 2021 | +0.2 | +0.3 | +0.1 | −0.1 | +0.4 | −0.4 | +0.3 | +0.3 | −0.2 | −0.8 | −1.0 | +0.3 |
| 2022 | +0.1 | −0.3 | +0.2 | ±0.0 | −0.2 | −0.7 | −0.1 | −0.5 | −1.5 | −2.0 | −1.1 | ±0.0 |
| 2023 | −0.4 | −0.2 | +0.1 | +0.2 | +0.1 | +0.3 | −0.2 | −0.1 | +0.2 | +1.6 | +1.2 | +1.3 |
| 2024 | +0.5 | +1.0 | +0.7 | +1.2 | +1.0 | +0.7 | +0.7 | +1.2 | +1.2 | +1.5 | +0.4 | +0.6 |
| 2025 | +0.2 | +0.4 | +0.4 | −0.1 | −0.2 | −0.4 | −0.1 | −0.6 | −0.4 | −0.7 | −1.0 | ±0.0 |
+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 (Q3114099) · 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.
