Slovenia 
In numbers.
15m
Height
OpenStreetMap
0.56m³/s
Average flow
estimate
Aug–Nov
Best months
83kW
Water power
estimate
The water at Kozjak Falls, month by month
It roars from March to November.
It carries water fairly evenly through the year.
- 0.3 m³/sJan
- 0.3 m³/sFeb
- 0.6 m³/sMar
- 0.6 m³/sApr
- 0.7 m³/sMay
- 0.7 m³/sJun
- 0.6 m³/sJul
- 0.8 m³/sAug
- 0.9 m³/sSep
- 0.9 m³/sOct
- 0.9 m³/sNov
- 0.5 m³/sDec
From about 0.31 m³/s in the lowest month to 0.90 m³/s in the highest. Best months to go, with plenty of water and pleasant days: from August to November.
Estimate: the timing comes from rain, snowmelt and evaporation (NASA POWER, 1991–2020); the amounts from the river model of HydroATLAS (WaterGAP, 1971–2000). Dams upstream can change the real flow.
Kozjak Falls is a waterfall in Slovenia. The water falls 15 m.
Getting there.
- Kobaridnearest town · 1.9 km in a straight line
- Parking 900 m awaynearest car park in OpenStreetMap, straight line
- Trieste Airport (TRS)nearest airport with scheduled flights · 49 km in a straight lineCar hire at TRS airport (Ronchi dei Legionari/Trieste)Discover Cars · Affiliate link↗
- From August to Novemberbest months to go (estimate)
Plan your visit
Stay, explore and get there
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
How big is it?
How big it really is.
Height of the drop as mapped in OpenStreetMap (© OpenStreetMap contributors). Buildings and the person are drawn at the same scale.
83 kW
About 0.56 m³/s falling 15 m: the power of the water as it drops.
- enough to power about 21 homes, if it were all turned into electricity
Power of falling water = density × gravity × flow × height. Average flow and height as shown above; an estimate.
Seen from the sky.
8 × 8 km of cloud-free satellite image, with what OpenStreetMap knows around the falls.
N
2 km
Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 8 × 8 km, north up. Points © OpenStreetMap contributors.
The line follows the river as mapped in OpenStreetMap; heights from the 30 m Copernicus model, which smooths narrow drops — the published height of the falls is the one above.
Around the falls the river drops 311 m in 2.7 km. Here the river runs about 159 m below the lower rim of its valley.
What is around.
- 15viewpointsVeliki Rob, Ozben - vzletišče, Male Skale and 12 more
- 9waymarked walking routesEuropean long distance path E7 - part Slovenia, Juliana Trail, Trnovo-Krn and 6 more
- 47car parks
- —swimming spots
- 11picnic sites
- 10toilets
- 23information boards and visitor centres
- —bus stops within 1 km
- 11other named waterfalls within 4 kmSlap Krampež, Mali Kozjak, Slap Stopnik 2 in 3 and 8 more
- 3caves
- 5campsitesKamp Trnovo, Kamp Koren, Kamp Lazar and 2 more
- 44hotels, B&Bs and huts within 6 kmBlazar, Sobe pri Jazbecu, Love apartma Smast and 41 more
- 11restaurants and cafés within 3 km
Counted in OpenStreetMap, the map anyone can edit, up to 2 km around the falls (unless noted). A low number may just mean nobody has mapped it yet. © OpenStreetMap contributors (ODbL).
Towns nearby
- Kobarid1.9 km in a straight line
- Bovec9.0 km in a straight line
- Clodig12 km in a straight line
- Savogna12 km in a straight line
- Pulfero13 km in a straight line
- Tolmin14 km in a straight line
- Merso di Sopra16 km in a straight line
- San Pietro al Natisone18 km in a straight line
Weather
The weather, month by month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon °C | 5 | 6 | 10 | 16 | 21 | 25 | 27 | 27 | 22 | 17 | 11 | 6 |
| Night °C | -3 | -2 | 2 | 6 | 11 | 15 | 17 | 17 | 12 | 8 | 4 | -1 |
| Rain & snow (mm) | 58 | 66 | 74 | 83 | 110 | 120 | 125 | 140 | 130 | 118 | 119 | 85 |
| Wet days | 8 | 8 | 10 | 13 | 16 | 17 | 17 | 16 | 13 | 13 | 12 | 10 |
| Sun h/day | 3.8 | 4.6 | 5.6 | 5.7 | 6.2 | 7.4 | 8.3 | 7.4 | 5.9 | 4.6 | 3.1 | 3.4 |
| Snow on the ground (cm) | 19 | 19 | 12 | 6 | 2 | 0 | 0 | 0 | 1 | 4 | 10 | 18 |
Long-term averages 1991–2020 (NASA POWER) for a cell about 55 km wide, with temperatures carried to the height of the falls (312 m) at −6.5 °C per 1,000 m. Not a forecast.
Recent years
Wet years and dry years
Rain of each month as a share of the 1991–2020 average. A wet season above 100 % usually means a fuller waterfall.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 35% | 67% | 153% | 37% | 100% | 172% | 154% | 173% | 114% | 222% | 26% | 342% |
| 2021 | 285% | 157% | 41% | 98% | 268% | 52% | 123% | 111% | 58% | 75% | 147% | 99% |
| 2022 | 97% | 69% | 40% | 125% | 85% | 82% | 96% | 94% | 199% | 70% | 97% | 176% |
| 2023 | 199% | 33% | 131% | 121% | 166% | 128% | 238% | 179% | 62% | 235% | 146% | 199% |
| 2024 | 172% | 209% | 233% | 132% | 210% | 153% | 126% | 60% | 227% | 224% | 36% | 42% |
| 2025 | 240% | 75% | 221% | 107% | 142% | 66% | 161% | 77% | 131% | 103% | 108% | 26% |
130% wetter than usual 70% drier than usual
Compare with the waterfalls nearby.
Kozjak Falls
Slovenia
- 15 mHeight
- 0.56 m³/sAverage flow
- Aug–NovBest months
About these numbers
| Names, height, width, river | Wikidata (Q14776034) · CC0 |
|---|---|
| Height of the drop | © OpenStreetMap contributors · ODbL |
| River flow and catchment | HydroATLAS / RiverATLAS v1.0 (Linke et al. 2019) · CC BY 4.0 |
| Climate | NASA POWER, 1991–2020 |
| Relief, river profile, 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Paths, viewpoints, parking | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
The family
Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?
Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.
beaches
Find your beach: sea temperature, sun and swimming month by month.Visit 
lakes
Every lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit 
mountains
Every summit in 3D: summit weather, the 0 °C line, huts and trails.Visit 
waterfalls
Every waterfall: height, flow month by month and when it roars.You are here
islands
Every island from the sea up: size, sea temperature, ferries and 3D.Visit 
rivers
Every river from source to sea: the journey, the flow and the basin in numbers.Visit 
canyons
Every canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Visit