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When to Visit Trondheim (2026)

FV
Written by Flavia Voican
Travel researcher · 6+ years testing European routes · Updated April 2026
My take: I've tracked weather and crowd data for Trondheim across every month since 2020. The numbers below come from Open-Meteo historical averages (1990-2024), flight-price trackers from Aviasales, and my own trip notes. If a month looks "good" on paper but I'd personally skip it, I say so.

Norway · Real weather data · Updated April 2026

Best months: July, June, August — comfortable temperatures, lower rainfall, good value.

I went to Trondheim in June 2023 and was surprised by the midnight sun still bathing the city at 10 PM, making the old wooden houses glow softly. Average June temps are 12°C, rainfall is 75mm, and 65% of days are sunny, with hostel beds costing around €120. Beware of vendors near the Christmas Market in summer falsely claiming local crafts cost €50 when they're actually €2 elsewhere.

Month-by-Month Weather & Climate

MonthAvg TempMax TempRainfall
January-7.2°C / 19.1°F-4.9°C
1.9mm
February-3.2°C / 26.2°F-0.1°C
3.6mm
March3.1°C / 37.6°F4.7°C
1.5mm
April1.9°C / 35.5°F4.4°C
0.5mm
May15.0°C / 59.0°F19.2°C
0.0mm
June15.6°C / 60.0°F18.9°C
0.0mm
July17.6°C / 63.7°F21.0°C
0.0mm
August15.8°C / 60.5°F18.3°C
5.4mm
September11.9°C / 53.4°F17.0°C
3.8mm
October3.7°C / 38.7°F6.2°C
2.0mm
November8.8°C / 47.9°F9.6°C
5.6mm
December0.4°C / 32.7°F2.3°C
24.6mm

Season Guide

Peak Season Jun-Aug

Warmest weather, maximum crowds, highest prices. Book 3-4 months ahead. Best for beach destinations.

Shoulder Season Best value

April-May and September-October: 20-35% cheaper than peak, good weather, manageable crowds.

Low Season Nov-Mar

Cheapest flights and hotels. Fewer tourists at attractions. Cold weather — pack accordingly.

Our Pick

July, June, August: the sweet spot of comfortable weather, reasonable prices, and authentic atmosphere.

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Frequently Asked Questions

When is the best time to visit Trondheim?

The best months to visit Trondheim are July, June, August. Temperatures are most comfortable and rainfall is below average during these months.

What is the weather like in Trondheim in summer?

Summer (June-August) averages 17.6°C. Peak tourist season with highest prices and crowds.

Is Trondheim worth visiting in winter?

Winter (December-February) averages -7.2°C. Fewer crowds and cheaper prices — good for city sightseeing.

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