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Weather & Climate in Rapperswil, Switzerland
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Rapperswil 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 1,339 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 | 1,339 ft (408 m) |
| Area | 11.3 sq mi (29.3 km²) |
| Population Density | 3,075/sq mi |
| Coordinates | 47.2256°N, 8.8223°W |
| Timezone | Europe/Zurich |
Precipitation & Snow
Air Quality
Earthquake History
766 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 | 133 km | 10 km |
| Nov 20, 1991 | 1 km WSW of Churwalden, Switzerland | M4.7 | 73 km | 10 km |
| Mar 31, 1994 | 2 km W of Warth, Austria | M4.7 | 101 km | 14 km |
| Feb 14, 1999 | 3 km NNE of Belfaux, Switzerland | M4.7 | 135 km | 10 km |
| Mar 22, 2003 | 2 km WSW of Albstadt, Germany | M4.7 | 110 km | 6 km |
| Jun 5, 1997 | 2 km ESE of Namlos, Austria | M4.6 | 142 km | 5 km |
| Apr 6, 2000 | 11 km WSW of Tubre, Italy | M4.5 | 134 km | 5 km |
| Oct 1, 2001 | 11 km WSW of Tubre, Italy | M4.5 | 133 km | 10 km |
| Feb 17, 1992 | 4 km NNE of Scharans, Switzerland | M4.5 | 72 km | 10 km |
| Jan 4, 2009 | 3 km S of Wildhaus, Switzerland | M4.5 | 41 km | 3 km |
| Aug 28, 1994 | 6 km SSW of Muotathal, Switzerland | M4.5 | 35 km | 8 km |
| Nov 22, 1997 | 4 km SSW of Krummenau, Switzerland | M4.4 | 25 km | 10 km |
| May 8, 1992 | 2 km WSW of Sennwald, Switzerland | M4.4 | 49 km | 5 km |
| Jun 14, 1993 | 3 km S of Vogogna, Italy | M4.4 | 144 km | 10 km |
| May 8, 1992 | 0 km NNW of Sennwald, Switzerland | M4.4 | 51 km | 5 km |
| May 15, 1992 | 1 km W of Sennwald, Switzerland | M4.4 | 50 km | 5 km |
| Apr 29, 2003 | 2 km SSW of Varen, Switzerland | M4.3 | 139 km | 8 km |
| May 6, 2003 | 7 km WSW of Linthal, Switzerland | M4.3 | 37 km | 6 km |
| Dec 31, 1999 | 11 km WSW of Tubre, Italy | M4.3 | 133 km | 10 km |
| Nov 16, 1995 | 1 km ENE of Einsiedeln, Switzerland | M4.3 | 11 km | 5 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 | 149 km |
| 1601 | LAKE LUCERNE | Eruption + Earthquake | 4.0 m | 8 | 53 km |
| 1996 | LAKE BRIENZ | Meteorological | 0.5 m | — | 85 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 9°F (-13°C) | 2.7 in | Coldest, Driest |
| February | 35°F (1°C) | 3.2 in | |
| March | 41°F (5°C) | 3.0 in | |
| April | 47°F (8°C) | 3.7 in | |
| May | 55°F (13°C) | 4.4 in | |
| June | 61°F (16°C) | 5.8 in | |
| July | 42°F (6°C) | 5.8 in | Wettest |
| August | 64°F (18°C) | 5.6 in | Warmest |
| September | 58°F (14°C) | 4.0 in | |
| October | 49°F (10°C) | 3.6 in | |
| November | 40°F (4°C) | 3.8 in | |
| December | 35°F (1°C) | 3.4 in |
Rapperswil has a seasonal temperature swing of 56°F / from 9°F in January to 64°F in August. Total annual precipitation is 49.0 inches, with July being the wettest month (5.8") and January the driest (2.7").