
Lake · Slovenia
Lake Ptuj
Hydroelectric reservoir near Ptuj, Slovenia
- Area
- 4.3km²
- Average depth
- 2.8m
- Elevation
- 212m a.s.l.
- Shoreline
- 12km
- Volume
- 0.012km³
Lake Ptuj is a lake in Slovenia. It covers 4.3 km². On average it is 2.8 m deep. Its surface lies 212 m above sea level.
Plan your visit
Stay, sail and get there
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The water
How warm is Lake Ptuj?
The water is warmest in July, around 21 °C at the surface, and coldest in January, around 1 °C. The surface averages 20 °C or more from July to August: comfortable for most swimmers.
It does not normally freeze in winter.
On the shore, afternoons reach 27 °C on average in July and 2 °C in January. The driest month is January (42 mm of rain), the wettest September (110 mm).
Average surface temperature measured by the Landsat 8 satellite between 2013 and 2021 at the point furthest from the shore (137 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 | 1 | 2 | 2 | -5 | 42 | 6 | 2.9 | 10 |
| February | 3 | 5 | 4 | -4 | 54 | 7 | 4.1 | 11 |
| March | 7 | 9 | 9 | -1 | 55 | 8 | 5.3 | 12 |
| April | 11 | 13 | 15 | 4 | 63 | 11 | 6.1 | 11 |
| May | 15 | 17 | 20 | 9 | 97 | 14 | 6.9 | 11 |
| June | 19 | 20 | 24 | 14 | 99 | 15 | 7.9 | 10 |
| July | 21 | 21 | 27 | 16 | 101 | 14 | 8.4 | 9 |
| August | 21 | 21 | 26 | 15 | 102 | 13 | 7.5 | 9 |
| September | 18 | 20 | 20 | 10 | 110 | 11 | 5.6 | 9 |
| October | 12 | 15 | 15 | 5 | 80 | 10 | 4.4 | 10 |
| November | 7 | 9 | 8 | 1 | 75 | 10 | 2.4 | 10 |
| December | 2 | 4 | 3 | -4 | 56 | 8 | 2.3 | 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 1 days before flowing out.
- Its catchment drains 13,671 km² of land.
- About 240 m³ of water flow out every second, on average.
Around the shore
What's around Lake Ptuj
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- —beaches and swimming spots
- 2campsites
Kamp Terme Ptuj, PZA Zabovci
- 2boat hire and water-sport clubs
Brodarsko društvo RANCA Ptuj, Brodarsko društvo RANCA Ptuj - Društveni prostori
- 5marinas and slipways
Marina Ranca
- —ferry piers
- 3viewpoints
- 18hotels, B&Bs and chalets
MuziKafe - kavarna, Kurent, Hotel Mitra, Park Hotel Ptuj, Hotel & Casino Admiral Ptuj and 13 more
- —fishing spots
- 43restaurants and cafés
Towns on the shore
- Ptuj17,984 people
- Zgornja Hajdina858 people
- Markovci495 people
- Videm pri Ptuju471 people
Nearest airport with scheduled flights: Maribor Edvard Rusjan Airport (MBX), 19 km in a straight line.
Car hire at ZAG airport (Velika Gorica)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 | 2.0 | 3.9 | 9.3 | 15.1 | 19.7 | 24.4 | 27.0 | 26.4 | 20.5 | 14.8 | 8.3 | 2.9 |
| 2020 | +2.0 | +5.0 | +0.5 | +1.9 | −0.4 | −0.3 | −0.4 | +0.6 | +1.7 | −0.1 | −0.8 | −0.5 |
| 2021 | +0.8 | +3.4 | −0.1 | −3.2 | −2.4 | +2.3 | +1.4 | −0.1 | +2.9 | −0.9 | −0.5 | −0.6 |
| 2022 | +2.1 | +3.6 | +0.3 | −1.3 | +2.1 | +2.7 | +2.5 | +2.0 | −0.3 | +3.3 | +0.7 | +0.2 |
| 2023 | +2.6 | +1.1 | +1.6 | −2.6 | −2.0 | −1.0 | −1.1 | −1.1 | +3.7 | +4.9 | +1.2 | +2.6 |
| 2024 | +2.1 | +7.0 | +3.2 | +1.6 | +0.7 | +0.4 | +2.5 | +4.7 | +1.1 | +1.1 | −0.4 | +1.4 |
| 2025 | +3.4 | −0.3 | +2.3 | +1.3 | −0.5 | +4.6 | +0.8 | +1.6 | +1.9 | +0.3 | +0.8 | +1.7 |
+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 (Q3395306) · 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.

