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Weather & Climate in Au, Austria
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Au has a cool climate with an average annual temperature of 44°F (7°C). Winters average 28°F in January while summers reach 59°F in July. The area gets 239 sunny days per year, above the national average. Annual precipitation totals 104.4 inches (wetter than the 38-inch national average). The area receives 237.8 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 2,687 feet.
Temperature
28°F Jan (-2°C)
59°F Jul (15°C)
| Annual Average | 44.0°F |
| 19% below US avg | |
| January Average | 28°F (-2°C) |
| July Average | 59°F (15°C) |
| Sunny Days | 239 days/yr |
Geography
| Elevation | 2,687 ft (819 m) |
| Area | 13.4 sq mi (34.7 km²) |
| Population Density | 80/sq mi |
| Coordinates | 47.3218°N, 9.9807°W |
| Timezone | Europe/Vienna |
Precipitation & Snow
Air Quality
Earthquake History
587 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 | 84 km | 10 km |
| Mar 31, 1994 | 2 km W of Warth, Austria | M4.7 | 15 km | 14 km |
| Nov 20, 1991 | 1 km WSW of Churwalden, Switzerland | M4.7 | 70 km | 10 km |
| Mar 22, 2003 | 2 km WSW of Albstadt, Germany | M4.7 | 123 km | 6 km |
| Jul 17, 2001 | 3 km NNE of Rifiano, Italy | M4.7 | 113 km | 10 km |
| Jun 5, 1997 | 2 km ESE of Namlos, Austria | M4.6 | 54 km | 5 km |
| Jan 4, 2009 | 3 km S of Wildhaus, Switzerland | M4.5 | 50 km | 3 km |
| Aug 28, 1994 | 6 km SSW of Muotathal, Switzerland | M4.5 | 104 km | 8 km |
| Oct 1, 2001 | 11 km WSW of Tubre, Italy | M4.5 | 83 km | 10 km |
| Feb 17, 1992 | 4 km NNE of Scharans, Switzerland | M4.5 | 74 km | 10 km |
| Apr 6, 2000 | 11 km WSW of Tubre, Italy | M4.5 | 84 km | 5 km |
| May 8, 1992 | 0 km NNW of Sennwald, Switzerland | M4.4 | 37 km | 5 km |
| May 8, 1992 | 2 km WSW of Sennwald, Switzerland | M4.4 | 39 km | 5 km |
| Nov 22, 1997 | 4 km SSW of Krummenau, Switzerland | M4.4 | 64 km | 10 km |
| May 15, 1992 | 1 km W of Sennwald, Switzerland | M4.4 | 38 km | 5 km |
| Dec 31, 1999 | 11 km WSW of Tubre, Italy | M4.3 | 84 km | 10 km |
| Nov 16, 1995 | 1 km ENE of Einsiedeln, Switzerland | M4.3 | 94 km | 5 km |
| May 6, 2003 | 7 km WSW of Linthal, Switzerland | M4.3 | 94 km | 6 km |
| Dec 30, 1992 | 2 km SW of Ühlingen-Birkendorf, Germany | M4.2 | 134 km | 33 km |
| Jun 4, 2024 | 2 km NNW of Unteriberg, Switzerland | M4.2 | 93 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
2 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 | 108 km |
| 1601 | LAKE LUCERNE | Eruption + Earthquake | 4.0 m | 8 | 126 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 28°F (-2°C) | 3.9 in | |
| February | 27°F (-3°C) | 3.8 in | Coldest |
| March | 31°F (-0°C) | 3.9 in | |
| April | 36°F (2°C) | 4.1 in | |
| May | 45°F (7°C) | 5.0 in | |
| June | 50°F (10°C) | 6.5 in | |
| July | 59°F (15°C) | 7.2 in | Warmest, Wettest |
| August | 55°F (13°C) | 6.7 in | |
| September | 49°F (10°C) | 5.0 in | |
| October | 42°F (6°C) | 3.8 in | Driest |
| November | 33°F (0°C) | 4.4 in | |
| December | 28°F (-2°C) | 4.3 in |
Au has a seasonal temperature swing of 32°F / from 27°F in February to 59°F in July. Total annual precipitation is 58.6 inches, with July being the wettest month (7.2") and October the driest (3.8").