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Weather & Climate in Unterschächen, Switzerland
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Unterschächen has a cool climate with an average annual temperature of 26°F (-3°C). Winters average 9°F in January while summers reach 42°F in July. The area gets 245 sunny days per year, above the national average. Annual precipitation totals 90.0 inches (wetter than the 38-inch national average). The area receives 376.0 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 3,284 feet.
Temperature
9°F Jan (-13°C)
42°F Jul (6°C)
| Annual Average | 25.8°F |
| 52% below US avg | |
| January Average | 9°F (-13°C) |
| July Average | 42°F (6°C) |
| Sunny Days | 245 days/yr |
Geography
| Elevation | 3,284 ft (1,001 m) |
| Area | 7.7 sq mi (20.0 km²) |
| Population Density | 98/sq mi |
| Coordinates | 46.8628°N, 8.7692°W |
| Timezone | Europe/Zurich |
Precipitation & Snow
Air Quality
Earthquake History
818 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Dec 29, 1999 | 12 km N of Isolaccia, Italy | M4.8 | 121 km | 10 km |
| Mar 31, 1994 | 2 km W of Warth, Austria | M4.7 | 113 km | 14 km |
| Nov 20, 1991 | 1 km WSW of Churwalden, Switzerland | M4.7 | 58 km | 10 km |
| Feb 14, 1999 | 3 km NNE of Belfaux, Switzerland | M4.7 | 125 km | 10 km |
| Oct 1, 2001 | 11 km WSW of Tubre, Italy | M4.5 | 122 km | 10 km |
| Jan 4, 2009 | 3 km S of Wildhaus, Switzerland | M4.5 | 57 km | 3 km |
| Feb 17, 1992 | 4 km NNE of Scharans, Switzerland | M4.5 | 56 km | 10 km |
| Apr 6, 2000 | 11 km WSW of Tubre, Italy | M4.5 | 122 km | 5 km |
| Aug 28, 1994 | 6 km SSW of Muotathal, Switzerland | M4.5 | 7 km | 8 km |
| Jun 14, 1993 | 3 km S of Vogogna, Italy | M4.4 | 105 km | 10 km |
| May 15, 1992 | 1 km W of Sennwald, Switzerland | M4.4 | 70 km | 5 km |
| May 8, 1992 | 0 km NNW of Sennwald, Switzerland | M4.4 | 71 km | 5 km |
| May 8, 1992 | 2 km WSW of Sennwald, Switzerland | M4.4 | 69 km | 5 km |
| Nov 22, 1997 | 4 km SSW of Krummenau, Switzerland | M4.4 | 48 km | 10 km |
| Apr 29, 2003 | 2 km SSW of Varen, Switzerland | M4.3 | 109 km | 8 km |
| May 6, 2003 | 7 km WSW of Linthal, Switzerland | M4.3 | 11 km | 6 km |
| Nov 16, 1995 | 1 km ENE of Einsiedeln, Switzerland | M4.3 | 30 km | 5 km |
| Mar 31, 1996 | 7 km NNW of Bionaz, Italy | M4.3 | 147 km | 5 km |
| Dec 31, 1999 | 11 km WSW of Tubre, Italy | M4.3 | 122 km | 10 km |
| Dec 30, 1992 | 2 km SW of Ühlingen-Birkendorf, Germany | M4.2 | 100 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 95.0 m (312 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1987 | VALTELLINA | Meteorological | 95.0 m | 27 | 131 km |
| 1601 | LAKE LUCERNE | Eruption + Earthquake | 4.0 m | 8 | 22 km |
| 1996 | LAKE BRIENZ | Meteorological | 0.5 m | — | 63 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 9°F (-13°C) | 4.3 in | Coldest |
| February | 27°F (-3°C) | 4.2 in | Driest |
| March | 31°F (-1°C) | 4.7 in | |
| April | 35°F (2°C) | 5.7 in | |
| May | 44°F (6°C) | 6.1 in | |
| June | 49°F (10°C) | 7.3 in | |
| July | 42°F (6°C) | 7.6 in | Wettest |
| August | 54°F (12°C) | 7.2 in | Warmest |
| September | 48°F (9°C) | 6.0 in | |
| October | 42°F (5°C) | 5.5 in | |
| November | 33°F (0°C) | 5.5 in | |
| December | 29°F (-2°C) | 4.8 in |
Unterschächen has a seasonal temperature swing of 45°F / from 9°F in January to 54°F in August. Total annual precipitation is 68.8 inches, with July being the wettest month (7.6") and February the driest (4.2").