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Weather & Climate in Primorsko, Bulgaria
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Primorsko experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 39°F in January while summers reach 73°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 city sits at an elevation of 69 feet.
Temperature
39°F Jan (4°C)
73°F Jul (23°C)
| Annual Average | 55.0°F |
| 2% above US avg | |
| January Average | 39°F (4°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 296 days/yr |
Geography
| Elevation | 69 ft (21 m) |
| Area | 26.8 sq mi (69.4 km²) |
| Population Density | 132/sq mi |
| Coordinates | 42.2679°N, 27.7561°W |
| Timezone | Europe/Sofia |
Precipitation & Snow
Air Quality
Earthquake History
203 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Dec 12, 1993 | 26 km NNE of Durusu, Turkey | M4.8 | 122 km | 28 km |
| Apr 4, 2022 | 14 km SE of Provadia, Bulgaria | M4.6 | 93 km | 10 km |
| Aug 13, 2001 | 13 km N of Yambol, Bulgaria | M4.6 | 109 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 | 90 km | 10 km |
| Apr 18, 2016 | 10 km SSW of Nova Zagora, Bulgaria | M4.3 | 148 km | 5 km |
| Feb 5, 2015 | 12 km ENE of Tvarditsa, Bulgaria | M4.2 | 149 km | 10 km |
| Aug 9, 2001 | 8 km NNE of Yambol, Bulgaria | M4.2 | 106 km | 42 km |
| Aug 21, 2010 | 18 km SE of Nova Zagora, Bulgaria | M4.1 | 132 km | 0 km |
| Jun 24, 2011 | Bulgaria | M4.1 | 124 km | 0 km |
| Jul 9, 2013 | 14 km N of Topolovgrad, Bulgaria | M4.1 | 120 km | 16 km |
| Apr 2, 2015 | 11 km N of Topolovgrad, Bulgaria | M4.0 | 119 km | 5 km |
| Jan 20, 2006 | 11 km WNW of Straldzha, Bulgaria | M4.0 | 107 km | 10 km |
| Aug 13, 2013 | 8 km SE of Provadia, Bulgaria | M3.9 | 97 km | 2 km |
| Apr 21, 1993 | 7 km NE of Dalgopol, Bulgaria | M3.9 | 95 km | 29 km |
| May 12, 2007 | 14 km SSW of Sredets, Bulgaria | M3.8 | 51 km | 15 km |
| Feb 5, 2014 | 8 km NNW of Durusu, Turkey | M3.8 | 123 km | 12 km |
| Feb 25, 2005 | Bulgaria | M3.8 | 122 km | 8 km |
| Jul 15, 2015 | 13 km ESE of Balgarevo, Bulgaria | M3.8 | 139 km | 20 km |
| Jul 18, 1995 | 18 km ESE of Sveti Vlas, Bulgaria | M3.7 | 48 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 | 140 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 39°F (4°C) | 1.9 in | Coldest |
| February | 40°F (4°C) | 1.8 in | |
| March | 44°F (6°C) | 1.9 in | |
| April | 51°F (11°C) | 1.9 in | |
| May | 60°F (15°C) | 1.7 in | |
| June | 68°F (20°C) | 1.8 in | |
| July | 73°F (23°C) | 1.2 in | Warmest |
| August | 72°F (22°C) | 1.1 in | Driest |
| September | 66°F (19°C) | 1.6 in | |
| October | 58°F (14°C) | 2.2 in | |
| November | 49°F (9°C) | 2.6 in | Wettest |
| December | 42°F (5°C) | 2.3 in |
Primorsko has a seasonal temperature swing of 34°F / from 39°F in January to 73°F in July. Total annual precipitation is 22.0 inches, with November being the wettest month (2.6") and August the driest (1.1").