
Crater lake · Romania
Lake Sfânta Ana
Crater lake
- Area
- 0.2km²
- Average depth
- 7.6m
- Elevation
- 945m a.s.l.
- Shoreline
- 1.6km
- Volume
- 0.001km³
Lake Sfânta Ana is a crater lake in Romania. It covers 0.2 km². On average it is 7.6 m deep. Its surface lies 945 m above sea level.
Plan your visit
Stay, sail and get there
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The water
How warm is Lake Sfânta Ana?
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 June to August: comfortable for most swimmers.
The lake usually freezes over for about 95 days a year, from around 3 December to 7 March.
On the shore, afternoons reach 26 °C on average in August and -1 °C in January. The driest month is February (31 mm of rain), the wettest June (108 mm).
Average surface temperature measured by the Landsat 8 satellite between 2013 and 2021 at the point furthest from the shore (76 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 | -8 | 34 | 8 | 2.9 | 10 |
| February | Ice | — | 2 | -7 | 31 | 8 | 4.2 | 11 |
| March | 2 | 6 | 8 | -3 | 40 | 10 | 5.3 | 11 |
| April | 10 | 13 | 14 | 2 | 52 | 12 | 6.4 | 10 |
| May | 16 | 19 | 20 | 8 | 82 | 16 | 7.3 | 8 |
| June | 21 | 22 | 23 | 12 | 108 | 17 | 8.1 | 8 |
| July | 22 | 22 | 26 | 14 | 97 | 15 | 8.5 | 8 |
| August | 21 | 22 | 26 | 14 | 70 | 12 | 8.5 | 7 |
| September | 18 | 20 | 21 | 9 | 54 | 9 | 6.3 | 8 |
| October | 12 | 16 | 14 | 3 | 49 | 8 | 5.0 | 9 |
| November | 4 | 8 | 8 | -1 | 35 | 7 | 3.0 | 9 |
| December | Ice | — | 1 | -6 | 37 | 9 | 2.1 | 9 |
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 4.7 years before flowing out.
- Its catchment drains 2 km² of land.
- About 0.0 m³ of water flow out every second, on average.
Around the shore
What's around Lake Sfânta Ana
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- —beaches and swimming spots
- 2campsites
- 1boat hire and water-sport clubs
Paddle Boat Hire
- —marinas and slipways
- —ferry piers
- 1viewpoints
- —hotels, B&Bs and chalets
- —fishing spots
- —restaurants and cafés
Towns on the shore
- Băile Tuşnad1,675 people
Nearest airport with scheduled flights: Brașov-Ghimbav International Airport (GHV), 55 km in a straight line.
Car hire at BCM airport (Bacău)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 | -0.6 | 1.8 | 7.5 | 13.9 | 19.5 | 23.2 | 25.6 | 26.1 | 20.6 | 14.2 | 7.6 | 0.7 |
| 2020 | +1.2 | +3.2 | +1.7 | +1.0 | −2.4 | −1.4 | −1.1 | +0.6 | +2.6 | +1.0 | −1.4 | +2.2 |
| 2021 | +1.4 | +2.1 | −2.8 | −3.4 | −1.8 | −1.2 | +1.8 | +0.7 | −1.3 | −1.5 | +1.7 | +1.6 |
| 2022 | +0.3 | +2.0 | −2.4 | −1.1 | +1.1 | +2.4 | +2.4 | +1.2 | −2.4 | +1.6 | +2.1 | +3.7 |
| 2023 | +5.4 | −0.4 | +1.6 | −2.5 | −1.0 | −0.5 | +1.1 | +2.2 | +3.5 | +4.2 | ±0.0 | +3.2 |
| 2024 | +2.0 | +6.7 | +2.7 | +3.4 | −0.1 | +4.3 | +4.5 | +3.1 | +2.4 | +2.4 | −1.6 | +1.1 |
| 2025 | +5.1 | +0.2 | +4.3 | +1.0 | −2.6 | +2.7 | +2.5 | +1.1 | +1.8 | −2.7 | +2.2 | +2.6 |
+1 warmer than usual −1 cooler than usual
Nearby
More lakes nearby
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 (Q924912) · 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.