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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 35–50°F, 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 55–58°F, 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 43–52°F, 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 -38–32°F, 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. 43.7°F / Annual rainfall: approx. 1274 mm / Summer humidity: 65%–75% / Rainiest month: October

Trondelag monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
31.8°F
176.7
February
32.4°F
142.6
March
35.2°F
92.2
April
39.9°F
66.7
May
50.9°F
65.8
June
55.8°F
79.7
July
58.3°F
81.7
August
58.5°F
80.3
September
52.5°F
88.2
October
43.2°F
181.7
November
35.1°F
115.9
December
25.9°F
103.2

Trondelag weather for the next seven days

12/16
Tuesday
Patchy rain nearby
39.6°F/37°F
12/17
Wednesday
Partly Cloudy
38.4°F/34.1°F
12/18
Thursday
Patchy rain nearby
38.6°F/35°F
12/19
Friday
Patchy rain nearby
46.3°F/38.2°F
12/20
Saturday
Patchy rain nearby
44.6°F/38.5°F
12/21
Sunday
Patchy rain nearby
44.1°F/42.5°F
12/22
Monday
Patchy rain nearby
42.4°F/37.8°F

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.