TunnsjøenWhen to Go
Best Time to Visit Tunnsjøen
Summer is best for hiking and boating; winter offers ice activities but demands local knowledge and safety precautions.
Summer
June-August · 5-18°C
Fishing, boating and hiking; long daylight hours in mid-summer.
Winter
December-March · -20-0°C
Ice-covered lake for ice fishing and snowmobiling; extreme cold and variable ice thickness require caution.
Weather & Climate near Tunnsjøen
Climate
Tunnsjøen's climate is classified as Subarctic - Subarctic climate with cool summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -10°C to 16°C. Moderate rainfall (952 mm/year).
Air Quality:
AQI 14
Good
Best Time to Visit
JulyMayJune
Temperature & Rainfall
Temperature Range
27°
Warmest Month
-31°
Coldest Month
Monthly Conditions
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Poor | -10° - -3° | -10° | 92 mm | overcast | 98% | 2.2 m/s | 0.0 low | 5.0h |
| February | Poor | -10° - -3° | -11° | 72 mm | overcast | 98% | 2.4 m/s | 0.0 low | 8.2h |
| March | Poor | -7° - 0° | -7° | 75 mm | overcast | 97% | 2.6 m/s | 0.2 low | 11.5h |
| April | Poor | -4° - 3° | -3° | 51 mm | overcast | 94% | 2.4 m/s | 0.6 moderate | 14.9h |
| May | Acceptable | 1° - 9° | 3° | 44 mm | overcast | 86% | 2.4 m/s | 0.9 moderate | 18.2h |
| June | Acceptable | 6° - 14° | 9° | 71 mm | overcast | 82% | 2.3 m/s | 1.1 high | 20.4h |
| July | Good | 8° - 16° | 12° | 89 mm | overcast | 83% | 2.1 m/s | 1.1 high | 19.3h |
| August | Acceptable | 8° - 15° | 11° | 79 mm | overcast | 86% | 2.2 m/s | 0.7 moderate | 16.1h |
| September | Poor | 4° - 10° | 6° | 111 mm | overcast | 91% | 2.2 m/s | 0.3 low | 12.8h |
| October | Poor | 1° - 5° | 1° | 107 mm | overcast | 96% | 2.4 m/s | 0.1 low | 9.5h |
| November | Poor | -4° - 1° | -5° | 81 mm | overcast | 98% | 2.3 m/s | 0.0 low | 6.0h |
| December | Poor | -7° - -2° | -8° | 80 mm | overcast | 98% | 2.4 m/s | 0.0 low | 3.6h |
Getting There & Around
How to Get to Tunnsjøen
Tunnsjöen is reached by regional roads from towns in Trøndelag. The nearest larger hubs are Steinkjer and Grong; from there, local roads and forest tracks lead to lake access points. A high-clearance vehicle is useful in wet seasons.
Tips for Visiting Tunnsjøen
- Bring a map and check ice conditions in winter-this is a deep lake with steep underwater drop-offs.
- Fishermen prize the lake for trout; local angling regulations and licences apply.
- The area is remote: mobile coverage can be patchy; plan routes and supplies before heading out.