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Weather & Climate in Ágios Vissaríonas, Greece
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Ágios Vissaríonas experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 37°F in January while summers reach 71°F in July. The area gets 278 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 31.9 inches. The city sits at an elevation of 738 feet.
Temperature
37°F Jan (3°C)
71°F Jul (22°C)
| Annual Average | 53.4°F |
| 1% below US avg | |
| January Average | 37°F (3°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 278 days/yr |
Geography
| Elevation | 738 ft (225 m) |
| Area | 6.8 sq mi (17.5 km²) |
| Population Density | 135/sq mi |
| Coordinates | 39.4712°N, 21.6194°W |
| Timezone | Europe/Athens |
Precipitation & Snow
Air Quality
Earthquake History
6,521 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.6.
| May 13, 1995 | 10 km W of Aianí, Greece | M6.6 | 76 km | 14 km |
| Jun 15, 1995 | 8 km WNW of Galaxídhion, Greece | M6.5 | 132 km | 14 km |
| Aug 14, 2003 | 8 km S of Kanaláki, Greece | M6.3 | 94 km | 10 km |
| Mar 3, 2021 | 9 km W of Týrnavos, Greece | M6.3 | 57 km | 8 km |
| Nov 18, 1992 | 10 km SE of Galaxídhion, Greece | M5.9 | 148 km | 15 km |
| Mar 4, 2021 | 11 km E of Verdikoússa, Greece | M5.8 | 55 km | 10 km |
| Mar 18, 1993 | 11 km NNE of Témeni, Greece | M5.8 | 134 km | 59 km |
| Mar 21, 2020 | 14 km NNE of Kanaláki, Greece | M5.7 | 85 km | 10 km |
| Nov 5, 1997 | 10 km NW of Galaxídhion, Greece | M5.6 | 129 km | 24 km |
| Jun 16, 1990 | 6 km WNW of Kanaláki, Greece | M5.6 | 97 km | 32 km |
| May 26, 2000 | 10 km WSW of Préveza, Greece | M5.6 | 104 km | 0 km |
| Jul 14, 1993 | 2 km SE of Pátra, Greece | M5.6 | 139 km | 23 km |
| Mar 12, 2021 | 8 km W of Elassóna, Greece | M5.6 | 62 km | 7 km |
| Aug 14, 2003 | 11 km W of Lefkáda, Greece | M5.5 | 115 km | 10 km |
| Feb 17, 2021 | 11 km N of Kamárai, Greece | M5.5 | 123 km | 5 km |
| Jan 18, 2010 | 11 km E of Náfpaktos, Greece | M5.5 | 122 km | 1 km |
| Oct 15, 2016 | 7 km WSW of Asprángeloi, Greece | M5.5 | 91 km | 22 km |
| Mar 4, 2021 | 7 km S of Kraniá Elassónas, Greece | M5.5 | 55 km | 10 km |
| Jan 22, 2010 | 14 km NNE of Kamárai, Greece | M5.4 | 122 km | 5 km |
| Jun 29, 2007 | 10 km NE of Gáïos, Greece | M5.4 | 119 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
20 tsunamis recorded within 500 km. Highest wave on record: 6.0 m (20 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1963 | CORINTH GULF | Meteorological | 6.0 m | 2 | 134 km |
| 1817 | CORINTHOS-PATRAS GULF | Earthquake | 5.0 m | — | 137 km |
| 1965 | NORTH CORINTH GULF | Eruption + Earthquake | 3.0 m | 2 | 145 km |
| 1861 | CORINTH GULF | Eruption + Earthquake | 2.1 m | — | 150 km |
| 2008 | SW. CORINTH GULF | Unknown | 2.0 m | — | 150 km |
| 1996 | W. CORINTH GULF | Meteorological | 2.0 m | — | 129 km |
| 1995 | GULF OF CORINTH: AIYION | Eruption + Earthquake | 1.0 m | 26 | 132 km |
| 1948 | IONIAN SEA | Earthquake | 1.0 m | 7 | 147 km |
| 2003 | IONIAN SEA | Earthquake | 0.5 m | — | 94 km |
| 2015 | IONIAN SEA | Eruption + Earthquake | 0.2 m | 2 | 125 km |
| 1992 | CORINTH GULF | Earthquake | — | — | 149 km |
| 1984 | CORINTHOS GULF, GREECE | Eruption + Earthquake | — | — | 136 km |
| 1955 | VOLOS GULF | Earthquake | — | 8 | 127 km |
| 1953 | IONIAN SEA | Earthquake | — | 476 | 148 km |
| 1888 | GULF OF CORINTH | Eruption + Earthquake | — | — | 147 km |
| 1883 | IONIAN ISLANDS | Earthquake | — | — | 139 km |
| 1862 | IONIAN SEA | Earthquake | — | — | 146 km |
| 1794 | CORINTH GULF | Eruption + Earthquake | — | — | 143 km |
| 1748 | CORINTHOS-PATRAS GULF | Earthquake | — | — | 137 km |
| -373 | CORINTHOS-PATRAS GULF | Eruption + Earthquake | — | — | 146 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 37°F (3°C) | 3.4 in | Coldest |
| February | 38°F (3°C) | 3.4 in | |
| March | 43°F (6°C) | 3.3 in | |
| April | 50°F (10°C) | 2.7 in | |
| May | 58°F (15°C) | 2.1 in | |
| June | 66°F (19°C) | 1.3 in | |
| July | 71°F (22°C) | 1.1 in | Warmest |
| August | 70°F (21°C) | 1.1 in | Driest |
| September | 64°F (18°C) | 1.7 in | |
| October | 56°F (13°C) | 3.5 in | |
| November | 47°F (8°C) | 4.3 in | Wettest |
| December | 40°F (5°C) | 4.2 in |
Ágios Vissaríonas has a seasonal temperature swing of 34°F / from 37°F in January to 71°F in July. Total annual precipitation is 31.9 inches, with November being the wettest month (4.3") and August the driest (1.1").