Slovenia 
In numbers.
13m³/s
Average flow
estimate
Aug–Nov
Best months
341m
Elevation
The water at Boka, month by month
It roars from March to November.
It carries water fairly evenly through the year.
- 5.1 m³/sJan
- 4.9 m³/sFeb
- 13 m³/sMar
- 15 m³/sApr
- 18 m³/sMay
- 17 m³/sJun
- 16 m³/sJul
- 20 m³/sAug
- 24 m³/sSep
- 23 m³/sOct
- 23 m³/sNov
- 12 m³/sDec
From about 4.9 m³/s in the lowest month to 24 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.
Getting there.
- Bovecnearest town · 5.0 km in a straight line
- Parking 100 m awaynearest car park in OpenStreetMap, straight line
- Trieste Airport (TRS)nearest airport with scheduled flights · 54 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.
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 508 m in 1.5 km. Here the river runs about 24 m below the lower rim of its valley.
What is around.
- 7viewpointsSlap Boka, Rajo and 5 more
- 3waymarked walking routesJuliana Trail, Alpe Adria Trail E25, Žaga - Velika Baba
- 13car parks
- —swimming spots
- 3picnic sites
- 3toilets
- 2information boards and visitor centres
- 5bus stops within 1 km
- 5other named waterfalls within 4 kmSlap Boka, Slap Virje, Srednji slap Globoškega potoka and 2 more
- 5caves
- 13campsitesKamp Trnovo, Prijon Sport Center, TOP rafting Center and 10 more
- 32hotels, B&Bs and huts within 6 kmRose Cottage, Hostel Bovec, Apartma "Pr Cinku" and 29 more
- 4restaurants 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
- Bovec5.0 km in a straight line
- Kobarid9.9 km in a straight line
- Taipana14 km in a straight line
- Prato16 km in a straight line
- Attimis20 km in a straight line
- Nimis21 km in a straight line
- Torreano22 km in a straight line
- Faedis22 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 | 4 | 6 | 10 | 16 | 21 | 25 | 27 | 26 | 22 | 16 | 11 | 6 |
| Night °C | -3 | -2 | 2 | 6 | 10 | 15 | 17 | 16 | 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 (341 m) at −6.5 °C per 1,000 m. Not a forecast.
Photos
Through visitors' eyes.
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.
Boka
Slovenia
- —Height
- 13 m³/sAverage flow
- Aug–NovBest months
About these numbers
| Names, height, width, river | Wikidata (Q352429) · CC0 |
|---|---|
| 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.
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