
In numbers.
79m
Height
OpenStreetMap
Sep
Best months
150m
Elevation
The water at Bjarnarfoss, month by month
It roars in October and from December to April.
The fullest months: October and from December to April.
- 98%Jan
- 100%Feb
- 91%Mar
- 78%Apr
- 62%May
- 40%Jun
- 32%Jul
- 42%Aug
- 71%Sep
- 76%Oct
- 74%Nov
- 93%Dec
Best months to go, with plenty of water and pleasant days: September.
Estimate from rain, snowmelt and evaporation month by month (NASA POWER, 1991–2020) around the falls. Dams upstream can change the real flow.
Bjarnarfoss is a waterfall in Iceland. The water falls 79 m.
Getting there.
- Ólafsvíknearest town · 15 km in a straight line
- Parking 570 m awaynearest car park in OpenStreetMap, straight line
- Keflavik International Airport (KEF)nearest airport with scheduled flights · 103 km in a straight lineCar hire at KEF airport (Reykjavík)Discover Cars · Affiliate link↗
- Septemberbest 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.
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 318 m in 3.2 km.
What is around.
- 2viewpoints
- —waymarked walking routes
- 1car parks
- —swimming spots
- 2picnic sites
- —toilets
- —information boards and visitor centres
- —bus stops within 1 km
- —other named waterfalls within 4 km
- —caves
- —campsites
- 2hotels, B&Bs and huts within 6 kmBöðvarsholt HI Hostel, Hotel Búðir
- —restaurants 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
- Ólafsvík15 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 | 1 | 1 | 1 | 4 | 7 | 10 | 12 | 12 | 9 | 5 | 2 | 1 |
| Night °C | -2 | -2 | -2 | 0 | 3 | 6 | 8 | 8 | 6 | 2 | 0 | -2 |
| Rain & snow (mm) | 143 | 130 | 125 | 100 | 79 | 64 | 76 | 102 | 143 | 122 | 124 | 146 |
| Wet days | 21 | 19 | 20 | 17 | 15 | 13 | 15 | 16 | 19 | 18 | 20 | 21 |
| Sun h/day | 0.0 | 0.8 | 3.0 | 5.3 | 7.6 | 9.3 | 7.4 | 5.9 | 3.3 | 1.4 | 0.1 | 0.1 |
| Snow on the ground (cm) | 19 | 16 | 16 | 10 | 3 | 0 | 0 | 0 | 0 | 5 | 14 | 16 |
Long-term averages 1991–2020 (NASA POWER) for a cell about 55 km wide, with temperatures carried to the height of the falls (150 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 | 126% | 99% | 114% | 105% | 125% | 160% | 74% | 138% | 101% | 90% | 98% | 98% |
| 2021 | 70% | 71% | 111% | 120% | 42% | 154% | 142% | 100% | 162% | 116% | 121% | 62% |
| 2022 | 134% | 108% | 147% | 99% | 106% | 124% | 150% | 110% | 70% | 60% | 71% | 44% |
| 2023 | 85% | 176% | 43% | 93% | 211% | 169% | 26% | 68% | 73% | 101% | 46% | 65% |
| 2024 | 101% | 57% | 86% | 79% | 177% | 108% | 210% | 113% | 68% | 86% | 116% | 127% |
| 2025 | 93% | 119% | 140% | 67% | 96% | 99% | 132% | 123% | 92% | 80% | 41% | 92% |
130% wetter than usual 70% drier than usual
Compare with the waterfalls nearby.
About these numbers
| Names, height, width, river | Wikidata (Q2949285) · CC0 |
|---|---|
| Height of the drop | © OpenStreetMap contributors · ODbL |
| 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
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Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.






