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Weather & Climate in Mavrothálassa, Greece
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mavrothálassa enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 45°F in January while summers reach 82°F in July. The area gets 306 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 33.1 inches. The city sits at an elevation of 79 feet.
Temperature
45°F Jan (7°C)
82°F Jul (28°C)
| Annual Average | 60.5°F |
| 12% above US avg | |
| January Average | 45°F (7°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 306 days/yr |
Geography
| Elevation | 79 ft (24 m) |
| Area | 8.6 sq mi (22.2 km²) |
| Population Density | 183/sq mi |
| Coordinates | 40.8943°N, 23.7505°W |
| Timezone | Europe/Athens |
Precipitation & Snow
Air Quality
Earthquake History
1,556 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.1.
| Dec 21, 1990 | 14 km WNW of Gouménissa, Greece | M6.1 | 122 km | 13 km |
| Jul 23, 1992 | 43 km ESE of Sykiá, Greece | M5.5 | 128 km | 7 km |
| Jan 16, 2022 | 25 km SSE of Karyes, Greece | M5.5 | 108 km | 7 km |
| Jun 7, 2025 | 6 km WNW of Karyes, Greece | M5.4 | 78 km | 10 km |
| May 24, 2009 | 11 km WNW of Stathmós Mourión, Greece | M5.3 | 98 km | 0 km |
| May 4, 1995 | 9 km NNW of Palaiochóri, Greece | M5.3 | 38 km | 10 km |
| Aug 22, 2014 | 12 km S of Kassándreia, Greece | M5.2 | 110 km | 14 km |
| Feb 14, 2012 | 10 km ENE of Sárti, Greece | M5.2 | 90 km | 24 km |
| Mar 4, 2012 | 8 km ENE of Sárti, Greece | M5.2 | 89 km | 3 km |
| Feb 7, 2023 | 4 km SSW of Níkiti, Greece | M4.9 | 80 km | 10 km |
| Sep 4, 2014 | 29 km NNW of Mýrina, Greece | M4.9 | 130 km | 12 km |
| Apr 21, 2018 | 3 km ESE of Pefkochóri, Greece | M4.9 | 103 km | 10 km |
| Jan 2, 2018 | 2 km N of Stathmós Mourión, Greece | M4.9 | 88 km | 12 km |
| Feb 15, 2025 | 12 km E of Ouranoupolis, Greece | M4.9 | 69 km | 14 km |
| May 24, 2014 | 25 km ESE of Sárti, Greece | M4.8 | 106 km | 14 km |
| May 24, 2009 | 9 km W of Stathmós Mourión, Greece | M4.8 | 95 km | 2 km |
| Sep 22, 2024 | 10 km NNE of Karyes, Greece | M4.8 | 77 km | 10 km |
| May 3, 1995 | 11 km N of Palaiochóri, Greece | M4.7 | 34 km | 10 km |
| Apr 10, 1994 | 0 km SE of Pefkochóri, Greece | M4.7 | 102 km | 20 km |
| Oct 29, 2003 | 2 km NNW of Néa Magnisía, Greece | M4.6 | 80 km | 25 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1905 | NORTH AEGEAN SEA | Eruption + Earthquake | 3.0 m | 11 | 116 km |
| 1932 | NORTH AEGEAN | Earthquake | 2.0 m | 161 | 46 km |
| 1902 | AEGEAN SEA | Earthquake | — | 5 | 45 km |
| 1585 | NORTH AEGEAN SEA | Earthquake | — | — | 100 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 45°F (7°C) | 1.9 in | |
| February | 43°F (6°C) | 1.4 in | |
| March | 49°F (9°C) | 1.6 in | |
| April | 57°F (14°C) | 1.4 in | |
| May | 66°F (19°C) | 1.6 in | |
| June | 74°F (23°C) | 1.5 in | |
| July | 82°F (28°C) | 1.1 in | Warmest |
| August | 77°F (25°C) | 0.7 in | Driest |
| September | 70°F (21°C) | 0.9 in | |
| October | 60°F (16°C) | 1.9 in | |
| November | 50°F (10°C) | 2.5 in | Wettest |
| December | 42°F (6°C) | 2.3 in | Coldest |
Mavrothálassa has a seasonal temperature swing of 40°F / from 42°F in December to 82°F in July. Total annual precipitation is 18.7 inches, with November being the wettest month (2.5") and August the driest (0.7").