Þórsmörk
Forest · Iceland
A highland river valley walled in by three glaciers, Eyjafjallajökull, Tindfjallajökull and Mýrdalsjökull, warm enough in its own pocket microclimate to grow downy birch scrub that most of interior Iceland can't support. Reached by unbridged river crossings or the last F-road buses of the season, usually running through mid-September, right as the birch and dwarf willow turn gold and rust.
Don’t miss
Peak: September 15–October 5
Climatological window from published records — the weather model’s elevation extrapolation isn’t reliable on this terrain, so this is the long-run normal rather than a season-specific forecast.
Source: https://icelandphotomap.com/blog/iceland-autumn-colors-photography-guide
Þórsmörk on the map
More things to do in Iceland
Skaftafell
National parkTypically September 15–October 5
Iceland's tallest native birch grows in Bæjarstaðarskógur, a stand inside Vatnajökull National Park reached by a rough 16km round-trip trail across the Morsá river footbridge. Closer to the visitor center, the short climb to Svartifoss passes through more accessible birch woods that gold up through September against black basalt columns and the Skaftafellsjökull glacier tongue.
Don’t miss: Bæjarstaðarskógur's tall birch stand, 16km round trip · Svartifoss basalt-column waterfall walk · birch gold against the Skaftafellsjökull glacier tongue
Hallormsstaðaskógur
ForestTypically September 15–October 12
Iceland's first protected forest, set aside in 1905 along the Lagarfljót river in the Eastfjords. Native birch and rowan color the 740-hectare reserve alongside an 85-species arboretum of introduced larch, spruce and pine, with color often holding into October longer than anywhere else in the country.
Don’t miss: 1905 arboretum with 85 introduced tree species · 40km of forest trails along Lagarfljót · color holds into October
Vaglaskógur
ForestTypically September 1–September 15
Iceland's straightest, tallest native birch grows here in Fnjóskadalur valley near Akureyri, some trunks over 12 meters where most Icelandic birch stays shrubby. A dozen kilometers of forest trails and campsites reward an easy walk, and North Iceland's colder interior climate turns the canopy gold earlier than the south, typically through the first half of September.
Don’t miss: Iceland's tallest native birch stand · 12km of marked forest trails · colors peak in the first half of September
Frequently asked
- When does Þórsmörk peak?
- In a typical year, color peaks around September 15–October 5. The weather model's elevation extrapolation isn't reliable on this terrain, so this is a climatological window (source: https://icelandphotomap.com/blog/iceland-autumn-colors-photography-guide) rather than a season-specific forecast.
- What is Þórsmörk best for?
- A highland valley reachable only by river-crossing bus or 4x4.
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