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Weather & Climate in Airolo, Switzerland
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Airolo has a cool climate with an average annual temperature of 34°F (1°C). Winters average 23°F in January while summers reach 49°F in July. The area gets 232 sunny days per year, above the national average. Annual precipitation totals 57.1 inches (wetter than the 38-inch national average). The area receives 24.9 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 3,812 feet.
Temperature
23°F Jan (-5°C)
49°F Jul (9°C)
| Annual Average | 34.2°F |
| 37% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 49°F (9°C) |
| Sunny Days | 232 days/yr |
Geography
| Elevation | 3,812 ft (1,162 m) |
| Area | 35.1 sq mi (91.0 km²) |
| Population Density | 44/sq mi |
| Coordinates | 46.5286°N, 8.6119°W |
| Timezone | Europe/Zurich |
Precipitation & Snow
Air Quality
Earthquake History
857 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Oct 29, 1995 | 0 km WNW of Adro, Italy | M4.9 | 145 km | 10 km |
| Dec 29, 1999 | 12 km N of Isolaccia, Italy | M4.8 | 130 km | 10 km |
| Nov 20, 1991 | 1 km WSW of Churwalden, Switzerland | M4.7 | 75 km | 10 km |
| Feb 14, 1999 | 3 km NNE of Belfaux, Switzerland | M4.7 | 119 km | 10 km |
| Mar 31, 1994 | 2 km W of Warth, Austria | M4.7 | 142 km | 14 km |
| Apr 6, 2000 | 11 km WSW of Tubre, Italy | M4.5 | 132 km | 5 km |
| Aug 28, 1994 | 6 km SSW of Muotathal, Switzerland | M4.5 | 44 km | 8 km |
| Feb 17, 1992 | 4 km NNE of Scharans, Switzerland | M4.5 | 71 km | 10 km |
| Jan 4, 2009 | 3 km S of Wildhaus, Switzerland | M4.5 | 92 km | 3 km |
| Oct 1, 2001 | 11 km WSW of Tubre, Italy | M4.5 | 131 km | 10 km |
| Nov 22, 1997 | 4 km SSW of Krummenau, Switzerland | M4.4 | 86 km | 10 km |
| May 8, 1992 | 2 km WSW of Sennwald, Switzerland | M4.4 | 104 km | 5 km |
| May 8, 1992 | 0 km NNW of Sennwald, Switzerland | M4.4 | 106 km | 5 km |
| May 15, 1992 | 1 km W of Sennwald, Switzerland | M4.4 | 105 km | 5 km |
| Jun 14, 1993 | 3 km S of Vogogna, Italy | M4.4 | 66 km | 10 km |
| Apr 29, 2003 | 2 km SSW of Varen, Switzerland | M4.3 | 82 km | 8 km |
| Dec 31, 1999 | 11 km WSW of Tubre, Italy | M4.3 | 131 km | 10 km |
| Nov 16, 1995 | 1 km ENE of Einsiedeln, Switzerland | M4.3 | 68 km | 5 km |
| Mar 31, 1996 | 7 km NNW of Bionaz, Italy | M4.3 | 114 km | 5 km |
| May 6, 2003 | 7 km WSW of Linthal, Switzerland | M4.3 | 47 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
4 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 | 133 km |
| 1601 | LAKE LUCERNE | Eruption + Earthquake | 4.0 m | 8 | 31 km |
| 1996 | LAKE BRIENZ | Meteorological | 0.5 m | — | 54 km |
| 563 | LAKE GENEVA | Meteorological | — | — | 139 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 3.8 in | |
| February | 22°F (-5°C) | 3.4 in | Coldest, Driest |
| March | 25°F (-4°C) | 4.1 in | |
| April | 29°F (-2°C) | 5.0 in | |
| May | 37°F (3°C) | 5.3 in | |
| June | 43°F (6°C) | 5.6 in | Wettest |
| July | 49°F (9°C) | 5.6 in | |
| August | 49°F (10°C) | 5.6 in | Warmest |
| September | 44°F (7°C) | 5.1 in | |
| October | 37°F (3°C) | 5.2 in | |
| November | 28°F (-2°C) | 4.7 in | |
| December | 25°F (-4°C) | 3.9 in |
Airolo has a seasonal temperature swing of 27°F / from 22°F in February to 49°F in August. Total annual precipitation is 57.1 inches, with June being the wettest month (5.6") and February the driest (3.4").