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Weather & Climate in Chálki, Greece
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Chálki enjoys a temperate climate with an average annual temperature of 65°F (18°C). Winters average 62°F in January while summers reach 79°F in July / relatively mild seasonal variation. The area gets 353 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 16.3 inches (drier than the 38-inch national average). The city sits at an elevation of 36 feet.
Temperature
62°F Jan (16°C)
79°F Jul (26°C)
| Annual Average | 64.7°F |
| 20% above US avg | |
| January Average | 62°F (16°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 353 days/yr |
Geography
| Elevation | 36 ft (11 m) |
| Area | 69.1 sq mi (178.9 km²) |
| Population Density | 0/sq mi |
| Coordinates | 36.2224°N, 27.6119°W |
| Timezone | Europe/Athens |
Precipitation & Snow
Air Quality
Earthquake History
3,129 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.6.
| Jul 20, 2017 | 11 km ENE of Kos, Greece | M6.6 | 81 km | 7 km |
| Jul 15, 2008 | 35 km SSW of Lárdos, Greece | M6.4 | 52 km | 52 km |
| Jul 20, 1996 | Dodecanese Islands, Greece | M6.2 | 46 km | 33 km |
| Jan 22, 2002 | 49 km NW of Fry, Greece | M6.2 | 102 km | 88 km |
| Apr 16, 2015 | 26 km SSW of Fry, Greece | M6.0 | 135 km | 20 km |
| Apr 1, 2011 | 42 km NW of Fry, Greece | M6.0 | 113 km | 60 km |
| Jun 10, 2012 | 28 km SW of Ölüdeniz, Turkey | M6.0 | 116 km | 35 km |
| May 13, 2025 | 20 km SSE of Fry, Greece | M6.0 | 123 km | 76 km |
| Jan 25, 2023 | 60 km SE of Lárdos, Greece | M5.9 | 98 km | 30 km |
| Jun 2, 2025 | 8 km SSW of İçmeler, Turkey | M5.8 | 76 km | 72 km |
| Jun 19, 2009 | 90 km SSE of Lárdos, Greece | M5.8 | 123 km | 28 km |
| Jun 23, 2001 | 61 km SSE of Lárdos, Greece | M5.7 | 90 km | 50 km |
| Jan 30, 2020 | 63 km SE of Karpathos, Greece | M5.7 | 117 km | 10 km |
| Aug 1, 2021 | 26 km SSW of Mandráki, Greece | M5.6 | 57 km | 10 km |
| Aug 4, 2004 | 15 km NE of Datça, Turkey | M5.6 | 70 km | 10 km |
| Jul 9, 2012 | 85 km SSW of Kalkan, Turkey | M5.6 | 136 km | 56 km |
| Jan 28, 2020 | 69 km ESE of Karpathos, Greece | M5.5 | 115 km | 10 km |
| Apr 26, 1996 | 8 km SW of Kremastí, Greece | M5.5 | 42 km | 75 km |
| Jun 21, 2021 | 20 km SSW of Mandráki, Greece | M5.5 | 57 km | 9 km |
| Jan 30, 2020 | 72 km ESE of Karpathos, Greece | M5.5 | 121 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
13 tsunamis recorded within 500 km. Highest wave on record: 7.3 m (24 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1948 | DODECANESE, KARPATHOS IS. | Earthquake | 7.3 m | — | 77 km |
| 2002 | DODECANESE ISLANDS | Unknown | 4.0 m | — | 58 km |
| 1481 | ISLAND OF RHODES | Earthquake | 3.0 m | — | 43 km |
| 2017 | GULF OF GÖKOVA | Earthquake | 1.9 m | 2 | 81 km |
| 1851 | ASIA MINOR | Earthquake | 1.8 m | — | 100 km |
| 1968 | ISLAND OF KOS | Eruption + Earthquake | 1.2 m | — | 68 km |
| 1851 | FETIYE, ASIA MINOR | Earthquake | 0.6 m | — | 128 km |
| 1870 | ALEXANDRIA | Earthquake | — | — | 147 km |
| 1741 | ISLAND OF RHODES | Earthquake | — | — | 80 km |
| 1303 | AEGEAN SEA | Earthquake | — | 4,000 | 147 km |
| 558 | DODECANESE ISLANDS | Earthquake | — | — | 98 km |
| 554 | ISLAND OF KOS | Earthquake | — | — | 70 km |
| 142 | DODECANESE ISLANDS | Earthquake | — | — | 63 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Nisyros (57 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Nisyros | Stratovolcano | 698 m (2,290 ft) | 1888 | 57 km |
| Santorini | Shield(s) | 367 m (1,204 ft) | 1950 | 200 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 62°F (16°C) | 6.1 in | Wettest |
| February | 52°F (11°C) | 4.9 in | Coldest |
| March | 55°F (13°C) | 3.2 in | |
| April | 60°F (16°C) | 1.5 in | |
| May | 67°F (20°C) | 0.8 in | |
| June | 75°F (24°C) | 0.3 in | |
| July | 79°F (26°C) | 0.1 in | Driest |
| August | 79°F (26°C) | 0.1 in | Warmest |
| September | 75°F (24°C) | 0.3 in | |
| October | 68°F (20°C) | 2.5 in | |
| November | 60°F (16°C) | 3.7 in | |
| December | 55°F (13°C) | 5.8 in |
Chálki has a seasonal temperature swing of 27°F / from 52°F in February to 79°F in August. Total annual precipitation is 29.3 inches, with January being the wettest month (6.1") and July the driest (0.1").