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Trondelag

Travel Info

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Trondelag Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Trondelag year round climate

  • Spring (March–May): Average 1.8–10.5°C, cold and humid climate, with chances of snowfall. March and April remain relatively cold, while May sees warmer weather. Common activities: Hiking, birdwatching. Recommended clothing: Warm jacket, waterproof clothing, hat, scarf, gloves.
  • Summer (June–August): Average 13.2–14.7°C, cool climate with relatively low rainfall. Warm and comfortable during the day, cooler at night. Common activities: Boating, fishing, camping, hiking. Recommended clothing: Light jacket, long-sleeved shirts, comfortable trousers.
  • Autumn (September–November): Average 6.2–11.4°C, cooler climate with increased rainfall, October being the rainiest month, with changeable weather. Common activities: Enjoying autumn scenery, mushroom picking (exercise caution). Recommended clothing: Waterproof jacket, warm clothing, rain boots.
  • Winter (December–February): Average -3.4–0.2°C, cold climate with frequent snowfall. Low temperatures require attention to staying warm. Common activities: Skiing, snowshoeing, ice fishing (exercise caution). Recommended clothing: Heavy warm jacket, waterproof trousers, warm hat, gloves, scarf, snow boots.

Trondelag climatological average

Annual average temperature: approx. 6.5°C / Annual rainfall: approx. 1274 mm / Summer humidity: 65%–75% / Rainiest month: October

Trondelag monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
-0.1°C
176.7
February
0.2°C
142.6
March
1.8°C
92.2
April
4.4°C
66.7
May
10.5°C
65.8
June
13.2°C
79.7
July
14.6°C
81.7
August
14.7°C
80.3
September
11.4°C
88.2
October
6.2°C
181.7
November
1.7°C
115.9
December
-3.4°C
103.2

Trondelag weather for the next seven days

1/29
Thursday
Sunny
-7.9°C/-9.6°C
1/30
Friday
Partly Cloudy
-8°C/-9.4°C
1/31
Saturday
Partly Cloudy
-6°C/-8.3°C
2/1
Sunday
Partly Cloudy
-5.7°C/-7.1°C
2/2
Monday
Partly Cloudy
-5.8°C/-7.4°C
2/3
Tuesday
Sunny
-7.4°C/-8.7°C
2/4
Wednesday
Overcast
-3°C/-7.8°C

Trondelag Frequently Asked Questions and Useful Information for Travel

When is the best time to visit?

Summer and autumn are the best times to visit. In summer, the hillsides are lush with green. In autumn, the maple leaves turn red. The red maple leaves contrast sharply with other evergreen plants.

What are the must-visit attractions?

Adamello-Brenta Natural Park, Belluno National Park, Seiser Alm Cable Car and Karersee Lake are must-visit attractions.