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Weather & Climate in Glóssa, Greece
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Glóssa enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 48°F in January while summers reach 79°F in July. The area gets 303 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 18.1 inches (drier than the 38-inch national average). The city sits at an elevation of 719 feet.
Temperature
48°F Jan (9°C)
79°F Jul (26°C)
| Annual Average | 62.6°F |
| 16% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 303 days/yr |
Geography
| Elevation | 719 ft (219 m) |
| Area | 34.6 sq mi (89.7 km²) |
| Population Density | 29/sq mi |
| Coordinates | 39.1752°N, 23.6157°W |
| Timezone | Europe/Athens |
Precipitation & Snow
Air Quality
Earthquake History
3,806 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.5.
| Jun 15, 1995 | 8 km WNW of Galaxídhion, Greece | M6.5 | 144 km | 14 km |
| Jul 26, 2001 | 32 km WNW of Skýros, Greece | M6.5 | 56 km | 10 km |
| Mar 3, 2021 | 9 km W of Týrnavos, Greece | M6.3 | 139 km | 8 km |
| Sep 7, 1999 | 5 km WNW of Fylí, Greece | M6.0 | 117 km | 10 km |
| Nov 18, 1992 | 10 km SE of Galaxídhion, Greece | M5.9 | 140 km | 15 km |
| Mar 4, 2021 | 11 km E of Verdikoússa, Greece | M5.8 | 146 km | 10 km |
| Nov 5, 1997 | 10 km NW of Galaxídhion, Greece | M5.6 | 142 km | 24 km |
| Jan 16, 2022 | 25 km SSE of Karyes, Greece | M5.5 | 116 km | 7 km |
| Jul 23, 1992 | 43 km ESE of Sykiá, Greece | M5.5 | 100 km | 7 km |
| Jun 7, 2025 | 6 km WNW of Karyes, Greece | M5.4 | 131 km | 10 km |
| Jun 15, 1995 | 3 km E of Galaxídhion, Greece | M5.4 | 136 km | 10 km |
| Sep 16, 2013 | 9 km NNW of Eláteia, Greece | M5.3 | 93 km | 8 km |
| Mar 3, 2021 | 5 km WSW of Týrnavos, Greece | M5.3 | 135 km | 10 km |
| Jun 9, 2015 | 13 km E of Malesína, Greece | M5.3 | 65 km | 13 km |
| Aug 7, 2013 | 9 km NW of Eláteia, Greece | M5.3 | 96 km | 0 km |
| Mar 30, 2019 | 2 km SE of Galaxídhion, Greece | M5.3 | 139 km | 10 km |
| Jul 19, 2019 | 1 km NNE of Magoúla, Greece | M5.3 | 120 km | 10 km |
| Mar 4, 2012 | 8 km ENE of Sárti, Greece | M5.2 | 113 km | 3 km |
| Jun 9, 2003 | 7 km E of Tsarítsani, Greece | M5.2 | 138 km | 18 km |
| Aug 22, 2014 | 12 km S of Kassándreia, Greece | M5.2 | 86 km | 14 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
16 tsunamis recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1965 | NORTH CORINTH GULF | Eruption + Earthquake | 3.0 m | 2 | 128 km |
| 1905 | NORTH AEGEAN SEA | Eruption + Earthquake | 3.0 m | 11 | 134 km |
| 1894 | NORTH EVOIKOS GULF | Eruption + Earthquake | 3.0 m | — | 69 km |
| 1932 | NORTH AEGEAN | Earthquake | 2.0 m | 161 | 149 km |
| 1981 | GULF OF CORINTH | Earthquake | 1.3 m | — | 111 km |
| 1968 | LEMNOS ISLAND, NORTH AEGEAN SEA | Earthquake | 1.2 m | 22 | 117 km |
| 1995 | GULF OF CORINTH: AIYION | Eruption + Earthquake | 1.0 m | 26 | 144 km |
| 1981 | ATHENS-EASTERN GULF OF CORINTH | Earthquake | 1.0 m | 22 | 121 km |
| 1928 | CORINTHOS-PATRAS GULF | Earthquake | 0.6 m | 20 | 141 km |
| 1992 | CORINTH GULF | Earthquake | — | — | 126 km |
| 1965 | AEGEAN SEA | Earthquake | — | 38 | 42 km |
| 1955 | VOLOS GULF | Earthquake | — | 8 | 51 km |
| 1853 | CENTRAL GREECE (EVOIKOS GULF) | Earthquake | — | 17 | 103 km |
| 1794 | CORINTH GULF | Eruption + Earthquake | — | — | 150 km |
| 1585 | NORTH AEGEAN SEA | Earthquake | — | — | 137 km |
| -426 | CORINTHOS-PATRAS GULF | Earthquake | — | 2,500 | 85 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
1 volcano within 200 km. Closest: Methana (175 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Methana | Lava dome(s) | 760 m (2,493 ft) | -258 | 175 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 48°F (9°C) | 2.3 in | Coldest |
| February | 49°F (9°C) | 2.1 in | |
| March | 53°F (11°C) | 2.0 in | |
| April | 58°F (14°C) | 1.3 in | |
| May | 67°F (20°C) | 1.0 in | |
| June | 76°F (24°C) | 0.6 in | |
| July | 79°F (26°C) | 0.4 in | Warmest, Driest |
| August | 79°F (26°C) | 0.5 in | |
| September | 72°F (22°C) | 0.8 in | |
| October | 65°F (18°C) | 2.0 in | |
| November | 57°F (14°C) | 2.4 in | |
| December | 51°F (10°C) | 2.8 in | Wettest |
Glóssa has a seasonal temperature swing of 31°F / from 48°F in January to 79°F in July. Total annual precipitation is 18.1 inches, with December being the wettest month (2.8") and July the driest (0.4").