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Jabbi CC BY-SA 4.0 Wikimedia Commons

Glymur

Waterfall

West of Reykjavík, Glymur plunges into a narrow canyon and requires a river crossing and steep hike to reach the waterfall rim; day-trippers prize the trail for exposed views and basalt cliffs.

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Glymur essentials

Address: Glymur waterfall / Hvalfjörður area, Western Region, Iceland
Hours: Trail open year‑round; daylight recommended for the hike.
Admission: Free (no entrance fee).

About Glymur

Glymur is a tall waterfall in Hvalfjörður in Iceland’s Western Region, known for its steep drop into a narrow gorge and for the hiking route that leads to viewpoints above and near the falls. The waterfall has been a notable natural attraction for hikers and photographers.

Key viewpoints are reached via a marked trail that follows the west side of the river and crosses narrow sections of the gorge; the trail includes steep and exposed parts as well as a rope-assisted crossing in places. The trail provides both near and panoramic views of the waterfall and the surrounding basalt cliffs.

The falls have been widely cited at about 198 meters in total drop, placing them among Iceland’s tallest traditional cascades. The stream that feeds the fall flows through Hvalfjörður and the falls are set within a largely uninhabited, scenic fjord landscape.

Glymur is located in Hvalfjörður roughly 40 kilometers north-northwest of Reykjavík and is commonly visited as a day hike from the capital.

  • Trail difficulty and time: The marked trail to the falls is roughly 3-4 hours round trip from the nearest parking area and includes steep sections and a river crossing that can be hazardous in high water or icy conditions.
  • Height and viewpoints: Glymur was long cited as Iceland’s tallest or among the tallest waterfalls at about 198 meters in drop; approach and viewpoint offer close-up and distant vistas of the waterfall and the surrounding gorge.
Things to Do
When to Go

Best Time to Visit Glymur

Visit Glymur in summer for long daylight and the safest hiking conditions; winter trails can be icy and are best avoided without experience.

Summer
June-August · 5-15°C
Longest daylight and the safest, most accessible hiking conditions to reach Glymur waterfall.
Late spring / Early autumn
May, September · 0-10°C
Cooler and quieter on the trail, but conditions can still be muddy or wet after rain.
Winter
December-February · -5-5°C
Trail sections can be icy and hazardous; limited daylight and harsher conditions make visits challenging.

Weather & Climate near Glymur

Climate

Glymur's climate is classified as Subarctic - Subarctic climate with cold summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -5°C to 12°C. Abundant rainfall (1078 mm/year), wettest in March, distributed fairly evenly throughout the year.

Air Quality: AQI 16 Good
Best Time to Visit
JuneJulyAugust
Temperature & Rainfall
Temperature Range
25°
Warmest Month
-23°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -5° - 0° -9° 101 mm overcast 94% 7.5 m/s 0.0 low 5.0h
February Poor -5° - 0° -10° 107 mm overcast 94% 7.8 m/s 0.0 low 8.2h
March Poor -5° - 0° -9° 108 mm overcast 92% 7.6 m/s 0.2 low 11.5h
April Poor -2° - 3° -6° 71 mm overcast 89% 7.0 m/s 0.6 moderate 14.9h
May Poor 2° - 7° 0° 66 mm overcast 82% 6.2 m/s 0.9 moderate 18.2h
June Acceptable 4° - 10° 4° 67 mm overcast 79% 5.6 m/s 1.1 high 20.4h
July Acceptable 7° - 12° 7° 71 mm overcast 79% 5.2 m/s 0.9 moderate 19.3h
August Acceptable 6° - 11° 6° 94 mm overcast 83% 5.3 m/s 0.6 moderate 16.1h
September Poor 3° - 8° 2° 86 mm overcast 88% 6.2 m/s 0.3 low 12.8h
October Poor 0° - 4° -3° 105 mm overcast 92% 6.3 m/s 0.1 low 9.5h
November Poor -3° - 2° -7° 97 mm overcast 94% 6.7 m/s 0.0 low 6.0h
December Poor -5° - 0° -9° 105 mm overcast 95% 7.2 m/s 0.0 low 3.6h
Getting There & Around

How to Get to Glymur

Glymur waterfall is in the Hvalfjörður area northwest of Reykjavík. By car the usual route is to follow Route 1 north out of Reykjavík and then turn onto Road 47 into Hvalfjörður; driving time to the trailhead is around 40-60 minutes depending on traffic (roughly 35-50 km). A marked parking area gives access to the trailhead; the hike to the viewpoint is a rugged trail of a few kilometres each way with steep sections and a river crossing, so plan for a couple of hours return.

Tips for Visiting Glymur

  • Park at the Glymur trailhead in Hvalfjörður (off Route 47) and start early on weekdays to avoid day‑trippers coming from Reykjavík later in the morning.
  • Avoid attempting the river crossing during peak spring melt-water levels rise and the narrow log/rock crossings become hazardous; late summer offers steadier conditions and clearer paths.
  • After reaching the main waterfall viewpoint, climb the short, steeper path to the opposite rim for a dramatic canyon perspective that many hikers skip on the return.