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Weather & Climate in Roússo, Greece
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Roússo enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 44°F in January while summers reach 85°F in July. The area gets 317 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 52.9 inches (wetter than the 38-inch national average). The area receives 1.2 inches of snow annually. The city sits at an elevation of 443 feet.
Temperature
44°F Jan (6°C)
85°F Jul (29°C)
| Annual Average | 61.0°F |
| 13% above US avg | |
| January Average | 44°F (6°C) |
| July Average | 85°F (29°C) |
| Sunny Days | 317 days/yr |
Geography
| Elevation | 443 ft (135 m) |
| Area | 42.5 sq mi (110.1 km²) |
| Population Density | 15/sq mi |
| Coordinates | 39.3120°N, 21.9037°W |
| Timezone | Europe/Athens |
Precipitation & Snow
Air Quality
Earthquake History
7,143 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 | 95 km | 14 km |
| Jun 15, 1995 | 8 km WNW of Galaxídhion, Greece | M6.5 | 107 km | 14 km |
| Aug 14, 2003 | 8 km S of Kanaláki, Greece | M6.3 | 113 km | 10 km |
| Mar 3, 2021 | 9 km W of Týrnavos, Greece | M6.3 | 55 km | 8 km |
| Nov 18, 1992 | 10 km SE of Galaxídhion, Greece | M5.9 | 121 km | 15 km |
| Mar 18, 1993 | 11 km NNE of Témeni, Greece | M5.8 | 110 km | 59 km |
| Mar 4, 2021 | 11 km E of Verdikoússa, Greece | M5.8 | 56 km | 10 km |
| Mar 21, 2020 | 14 km NNE of Kanaláki, Greece | M5.7 | 109 km | 10 km |
| Nov 5, 1997 | 10 km NW of Galaxídhion, Greece | M5.6 | 103 km | 24 km |
| Jun 16, 1990 | 6 km WNW of Kanaláki, Greece | M5.6 | 119 km | 32 km |
| Jul 14, 1993 | 2 km SE of Pátra, Greece | M5.6 | 122 km | 23 km |
| May 26, 2000 | 10 km WSW of Préveza, Greece | M5.6 | 117 km | 0 km |
| Mar 12, 2021 | 8 km W of Elassóna, Greece | M5.6 | 67 km | 7 km |
| Jan 18, 2010 | 11 km E of Náfpaktos, Greece | M5.5 | 101 km | 1 km |
| Mar 4, 2021 | 7 km S of Kraniá Elassónas, Greece | M5.5 | 64 km | 10 km |
| Feb 17, 2021 | 11 km N of Kamárai, Greece | M5.5 | 101 km | 5 km |
| Oct 15, 2016 | 7 km WSW of Asprángeloi, Greece | M5.5 | 121 km | 22 km |
| Aug 14, 2003 | 11 km W of Lefkáda, Greece | M5.5 | 127 km | 10 km |
| Feb 25, 1994 | 15 km W of Lefkáda, Greece | M5.4 | 129 km | 36 km |
| Jan 22, 2010 | 14 km NNE of Kamárai, Greece | M5.4 | 100 km | 5 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 | 112 km |
| 1817 | CORINTHOS-PATRAS GULF | Earthquake | 5.0 m | — | 114 km |
| 1965 | NORTH CORINTH GULF | Eruption + Earthquake | 3.0 m | 2 | 117 km |
| 1894 | NORTH EVOIKOS GULF | Eruption + Earthquake | 3.0 m | — | 124 km |
| 1861 | CORINTH GULF | Eruption + Earthquake | 2.1 m | — | 126 km |
| 2008 | SW. CORINTH GULF | Unknown | 2.0 m | — | 126 km |
| 1996 | W. CORINTH GULF | Meteorological | 2.0 m | — | 106 km |
| 1995 | GULF OF CORINTH: AIYION | Eruption + Earthquake | 1.0 m | 26 | 107 km |
| 2003 | IONIAN SEA | Earthquake | 0.5 m | — | 113 km |
| 2015 | IONIAN SEA | Eruption + Earthquake | 0.2 m | 2 | 133 km |
| 1992 | CORINTH GULF | Earthquake | — | — | 121 km |
| 1984 | CORINTHOS GULF, GREECE | Eruption + Earthquake | — | — | 113 km |
| 1955 | VOLOS GULF | Earthquake | — | 8 | 103 km |
| 1953 | IONIAN SEA | Earthquake | — | 476 | 148 km |
| 1888 | GULF OF CORINTH | Eruption + Earthquake | — | — | 125 km |
| 1862 | IONIAN SEA | Earthquake | — | — | 122 km |
| 1794 | CORINTH GULF | Eruption + Earthquake | — | — | 118 km |
| 1748 | CORINTHOS-PATRAS GULF | Earthquake | — | — | 114 km |
| 1402 | GULF OF CORINTH | Earthquake | — | — | 141 km |
| -373 | CORINTHOS-PATRAS GULF | Eruption + Earthquake | — | — | 122 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (6°C) | 3.0 in | |
| February | 43°F (6°C) | 3.1 in | Coldest |
| March | 48°F (9°C) | 2.8 in | |
| April | 55°F (13°C) | 2.2 in | |
| May | 63°F (17°C) | 1.6 in | |
| June | 71°F (22°C) | 1.0 in | |
| July | 85°F (29°C) | 0.8 in | Warmest |
| August | 76°F (24°C) | 0.8 in | Driest |
| September | 69°F (21°C) | 1.3 in | |
| October | 61°F (16°C) | 3.1 in | |
| November | 51°F (10°C) | 3.9 in | Wettest |
| December | 44°F (6°C) | 3.8 in |
Roússo has a seasonal temperature swing of 42°F / from 43°F in February to 85°F in July. Total annual precipitation is 27.4 inches, with November being the wettest month (3.9") and August the driest (0.8").