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Weather & Climate in Isperih, Bulgaria
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Isperih experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 31°F in January while summers reach 71°F in July. The area gets 296 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 22.1 inches (drier than the 38-inch national average). The area receives 4.3 inches of snow annually. The city sits at an elevation of 915 feet.
Temperature
31°F Jan (-1°C)
71°F Jul (22°C)
| Annual Average | 51.3°F |
| 5% below US avg | |
| January Average | 31°F (-1°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 296 days/yr |
Geography
| Elevation | 915 ft (279 m) |
| Area | 13.8 sq mi (35.7 km²) |
| Population Density | 705/sq mi |
| Coordinates | 43.7167°N, 26.8333°W |
| Timezone | Europe/Sofia |
Precipitation & Snow
Air Quality
Earthquake History
37 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Apr 4, 2022 | 14 km SE of Provadia, Bulgaria | M4.6 | 91 km | 10 km |
| Aug 13, 2001 | 13 km N of Yambol, Bulgaria | M4.6 | 127 km | 10 km |
| Dec 3, 2012 | 14 km SE of Shabla, Bulgaria | M4.5 | 150 km | 10 km |
| Oct 7, 2010 | 14 km NW of Dolni Chiflik, Bulgaria | M4.4 | 94 km | 10 km |
| Apr 15, 2008 | 6 km NE of Gabrovo, Bulgaria | M4.2 | 146 km | 10 km |
| Jan 3, 2017 | 8 km ENE of Lyaskovets, Bulgaria | M4.2 | 104 km | 21 km |
| Aug 9, 2001 | 8 km NNE of Yambol, Bulgaria | M4.2 | 131 km | 42 km |
| Feb 5, 2015 | 12 km ENE of Tvarditsa, Bulgaria | M4.2 | 127 km | 10 km |
| May 14, 2004 | 12 km SW of Razgrad, Bulgaria | M4.2 | 45 km | 24 km |
| May 12, 2008 | 4 km SSW of Strazhitsa, Bulgaria | M4.1 | 92 km | 16 km |
| Sep 29, 1993 | 3 km SSW of Mihai Viteazu, Romania | M4.1 | 70 km | 10 km |
| Jan 20, 2006 | 11 km WNW of Straldzha, Bulgaria | M4.0 | 123 km | 10 km |
| Feb 5, 2024 | 4 km SSW of Căzăneşti, Romania | M4.0 | 97 km | 10 km |
| Aug 13, 2013 | 8 km SE of Provadia, Bulgaria | M3.9 | 85 km | 2 km |
| Apr 21, 1993 | 7 km NE of Dalgopol, Bulgaria | M3.9 | 85 km | 29 km |
| Feb 25, 2005 | Bulgaria | M3.8 | 82 km | 8 km |
| Jul 15, 2015 | 13 km ESE of Balgarevo, Bulgaria | M3.8 | 145 km | 20 km |
| Jul 18, 1995 | 18 km ESE of Sveti Vlas, Bulgaria | M3.7 | 149 km | 10 km |
| Feb 12, 2005 | 1 km SSW of R?zvani, Romania | M3.6 | 77 km | 0 km |
| Aug 9, 2001 | 1 km ENE of Yambol, Bulgaria | M3.5 | 139 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1901 | BLACK SEA | Earthquake | 3.0 m | 4 | 139 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-1°C) | 1.3 in | Coldest, Driest |
| February | 34°F (1°C) | 1.3 in | |
| March | 41°F (5°C) | 1.5 in | |
| April | 51°F (11°C) | 2.0 in | |
| May | 61°F (16°C) | 2.5 in | |
| June | 67°F (20°C) | 2.8 in | Wettest |
| July | 71°F (22°C) | 2.2 in | Warmest |
| August | 70°F (21°C) | 1.9 in | |
| September | 63°F (17°C) | 1.7 in | |
| October | 53°F (12°C) | 1.5 in | |
| November | 42°F (5°C) | 1.8 in | |
| December | 33°F (1°C) | 1.7 in |
Isperih has a seasonal temperature swing of 41°F / from 31°F in January to 71°F in July. Total annual precipitation is 22.1 inches, with June being the wettest month (2.8") and January the driest (1.3").