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Weather & Climate in Cerkno, Slovenia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Cerkno experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 30°F in January while summers reach 63°F in July. The area gets 176 sunny days per year. Annual precipitation totals 88.5 inches (wetter than the 38-inch national average). The area receives 19.1 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 1,043 feet.
Temperature
30°F Jan (-1°C)
63°F Jul (17°C)
| Annual Average | 46.8°F |
| 13% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 63°F (17°C) |
| Sunny Days | 176 days/yr |
Geography
| Elevation | 1,043 ft (318 m) |
| Area | 2.9 sq mi (7.5 km²) |
| Population Density | 550/sq mi |
| Coordinates | 46.1253°N, 13.9827°W |
| Timezone | Europe/Ljubljana |
Precipitation & Snow
Air Quality
Earthquake History
1,102 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.6.
| Apr 12, 1998 | 5 km E of Kobarid, Slovenia | M5.6 | 29 km | 10 km |
| Mar 13, 1998 | 4 km NW of Ilirska Bistrica, Slovenia | M5.2 | 61 km | 10 km |
| Jul 12, 2004 | 7 km NE of Kobarid, Slovenia | M5.2 | 32 km | 8 km |
| May 29, 1993 | 1 km SE of ?rnomelj, Slovenia | M5.1 | 114 km | 15 km |
| May 22, 1995 | 6 km NNW of Ilirska Bistrica, Slovenia | M4.9 | 59 km | 27 km |
| Feb 5, 2007 | 11 km ESE of Novi Vinodolski, Croatia | M4.9 | 135 km | 10 km |
| Sep 3, 1990 | 1 km ENE of Donja Bistra, Croatia | M4.8 | 148 km | 20 km |
| Nov 11, 1990 | 5 km ENE of Cerkno, Slovenia | M4.7 | 6 km | 22 km |
| Feb 14, 2002 | 4 km SSW of Moggio di Sotto, Italy | M4.7 | 68 km | 10 km |
| Feb 16, 2023 | 3 km W of Baška, Croatia | M4.7 | 141 km | 10 km |
| Jul 21, 2003 | 3 km WNW of Niederwölz, Austria | M4.7 | 118 km | 10 km |
| May 6, 1998 | 6 km NNW of Tolmin, Slovenia | M4.6 | 25 km | 10 km |
| Jun 2, 2002 | 6 km SSE of Pivka, Slovenia | M4.6 | 59 km | 10 km |
| Jan 17, 2003 | 4 km SSE of Punat, Croatia | M4.6 | 138 km | 10 km |
| May 28, 1998 | 3 km WSW of Osoppo, Italy | M4.5 | 74 km | 10 km |
| Jun 9, 2012 | 5 km NE of Lamosano, Italy | M4.5 | 119 km | 7 km |
| Apr 22, 2014 | 7 km SE of Pivka, Slovenia | M4.5 | 59 km | 5 km |
| Oct 5, 1991 | 0 km W of Nimis, Italy | M4.5 | 56 km | 10 km |
| Nov 28, 1993 | 3 km WNW of Klana, Croatia | M4.4 | 80 km | 5 km |
| Mar 13, 2014 | 9 km E of Ribnica, Slovenia | M4.4 | 79 km | 2 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 235.0 m (771 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1963 | VAJONT DAM, VAJONT RIVER | Meteorological | 235.0 m | 2,000 | 128 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 6.1 in | Coldest |
| February | 32°F (0°C) | 4.7 in | Driest |
| March | 37°F (3°C) | 6.1 in | |
| April | 44°F (7°C) | 7.8 in | |
| May | 52°F (11°C) | 7.2 in | |
| June | 59°F (15°C) | 8.1 in | |
| July | 63°F (17°C) | 6.2 in | |
| August | 64°F (18°C) | 6.1 in | Warmest |
| September | 58°F (14°C) | 8.0 in | |
| October | 50°F (10°C) | 9.5 in | |
| November | 40°F (4°C) | 10.5 in | Wettest |
| December | 32°F (0°C) | 8.3 in |
Cerkno has a seasonal temperature swing of 35°F / from 30°F in January to 64°F in August. Total annual precipitation is 88.5 inches, with November being the wettest month (10.5") and February the driest (4.7").