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When are the waterfalls in Norway at their biggest?

Snowmelt, the best months and waterfalls regulated for hydropower.

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Short answer

Norway's waterfalls are at their biggest in May and June, when melting snow from the mountains gives the highest water flow. Visit Norway names these two months as the best time to see them. Some falls used for hydropower run only when water is released: Mardalsfossen flows from 20 June to 20 August.

Fjord waterfalls a round calendar wheel with four seasons shown as a snowflake, a leaf, a sun and a raindrop around a small mountain

Why

  1. Visit Norway states that the best time to experience the waterfalls is May and June, when the water flow is at its highest.
  2. Store norske leksikon notes that spring floods caused by melting snow are common in Norway and other countries with snow cover in winter.
  3. Many Norwegian waterfalls are used to generate electricity, and at Mardalsfossen the power plant releases the water only from 20 June to 20 August.

Details

Visit Norway lists Vinnufallet in Sunndalen as the tallest waterfall, with drops of over 800 metres, while Vettisfossen has a single drop of 275 metres and Mardalsfossen a free fall of 297 metres. The same page names Vøringsfossen, Steinsdalsfossen, the Seven Sisters, Kjosfossen and Låtefossen. In spring the flow is especially strong, and in winter the spray freezes to ice, so Visit Norway advises extra care near the falls in both seasons.

Tip

If waterfalls are the main goal, plan a fjord trip for late May or June; to see Mardalsfossen with water, go between 20 June and 20 August.

What may differ

The peak shifts with the amount of snow and the timing of spring. In 1995, for example, a late spring led to rapid melting of large amounts of snow in Eastern Norway at the end of May. Regulated falls such as Mardalsfossen follow the power plant's schedule rather than the weather.

Common misconception

Waterfalls are at their fullest in July and August, in the main holiday season.

What actually happens

Visit Norway puts the highest water flow in May and June, during the snowmelt. Most falls still run in high summer, but with less water; regulated Mardalsfossen is the exception and runs only from 20 June to 20 August.

People also ask

  • When is the best time to see waterfalls in Norway?

Sources

Information checked on 15 October 2026.

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