Obersee (Glarus) Lake

High-altitude lake in Canton Glarus, Swiss Alps

A mountain lake in the canton of Glarus accessed by footpaths through steep valley slopes. Hikers use it as a base for day-trips and mountain photography.

Main image

Obersee (Glarus) at a Glance#

Admission: Free (natural lake)

Tips for Visiting Obersee (Glarus)#

  • Visit Obersee (Glarus) in summer or early autumn when high-mountain roads and trails are most likely to be open and snow-free.
  • Arrive early in the day if you want calm water and the best reflections; popular viewpoints fill up by late morning on fine weekends.
  • Use local trailhead information from nearby Glarus-area villages to pick quieter access routes rather than the busiest car parks.

Best Time to Visit Obersee (Glarus)#

Visit in summer for the most reliable access and pleasant hiking around the lake.

Summer
Jun-Sep · ~8-20°C
Prime time for hiking to the lake and enjoying alpine scenery; trails and passes are usually open.
Spring/Autumn
May & Oct · ~-5-10°C
Fewer visitors and crisp conditions; weather can shift quickly and remnants of snow may occur in spring.
Winter
Nov-Apr · ~-15-0°C
Cold, snowy and often frozen - many routes are snowbound and access may be limited.

Weather & Climate near Obersee (Glarus)#

Climate

Obersee (Glarus)'s climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with mild summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -4°C to 20°C. Abundant rainfall (1555 mm/year), wettest in July.

Air Quality: AQI 34 Good
Best Time to Visit
JulyAugustSeptember
Temperature & Rainfall
Temperature Range
30°
Warmest Month
-28°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -4° - 2° -4° 86 mm overcast 87% 2.6 m/s 0.1 low 8.8h
February Poor -4° - 3° -4° 94 mm overcast 85% 2.9 m/s 0.3 low 10.1h
March Poor -1° - 6° -1° 99 mm partly cloudy 83% 3.1 m/s 0.5 moderate 11.8h
April Acceptable 1° - 9° 3° 121 mm partly cloudy 78% 2.9 m/s 0.9 moderate 13.5h
May Poor 6° - 14° 9° 141 mm overcast 78% 2.8 m/s 1.3 high 14.9h
June Acceptable 9° - 17° 13° 178 mm partly cloudy 77% 2.6 m/s 1.6 very high 15.7h
July Good 11° - 20° 15° 189 mm partly cloudy 77% 2.5 m/s 1.6 very high 15.3h
August Good 11° - 19° 15° 178 mm partly cloudy 78% 2.4 m/s 1.3 high 14.1h
September Good 8° - 16° 12° 136 mm partly cloudy 81% 2.5 m/s 0.9 moderate 12.4h
October Poor 4° - 11° 6° 112 mm overcast 82% 2.5 m/s 0.4 low 10.7h
November Poor -1° - 6° 0° 118 mm overcast 85% 2.7 m/s 0.2 low 9.2h
December Poor -3° - 3° -3° 103 mm overcast 86% 2.7 m/s 0.1 low 8.3h

Nearby Attractions to Obersee (Glarus)#