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Weather & Climate in Furnas, Portugal
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Furnas enjoys a temperate climate with an average annual temperature of 60°F (15°C). Winters average 54°F in January while summers reach 66°F in July / relatively mild seasonal variation. The area gets 257 sunny days per year, above the national average. Annual precipitation totals 43.5 inches. The city sits at an elevation of 791 feet.
Temperature
54°F Jan (12°C)
66°F Jul (19°C)
| Annual Average | 59.8°F |
| 11% above US avg | |
| January Average | 54°F (12°C) |
| July Average | 66°F (19°C) |
| Sunny Days | 257 days/yr |
Geography
| Elevation | 791 ft (241 m) |
| Area | 13.1 sq mi (33.9 km²) |
| Population Density | 122/sq mi |
| Coordinates | 37.7757°N, 25.3104°W |
| Timezone | Atlantic/Azores |
Precipitation & Snow
Air Quality
Earthquake History
114 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.3.
| Apr 5, 2007 | 74 km SE of Povoação, Portugal | M6.3 | 80 km | 14 km |
| Apr 7, 2007 | 82 km SE of Senhora do Rosário, Portugal | M6.1 | 89 km | 8 km |
| Apr 30, 2013 | Azores Islands region | M5.9 | 41 km | 10 km |
| Jun 27, 1997 | 50 km SE of Porto Martins, Portugal | M5.9 | 135 km | 10 km |
| Mar 9, 1996 | 111 km SE of Povoação, Portugal | M5.7 | 117 km | 10 km |
| Apr 8, 2007 | 90 km SE of Povoação, Portugal | M5.4 | 96 km | 10 km |
| Jun 27, 1997 | 51 km SE of Porto Judeu, Portugal | M5.2 | 139 km | 10 km |
| Apr 8, 2007 | 91 km SE of Povoação, Portugal | M5.2 | 98 km | 10 km |
| Dec 9, 1991 | 98 km SE of Senhora do Rosário, Portugal | M5.2 | 105 km | 10 km |
| Aug 2, 2025 | 125 km ESE of Senhora do Rosário, Portugal | M5.2 | 137 km | 10 km |
| Mar 11, 2025 | 30 km SSE of Povoação, Portugal | M5.1 | 35 km | 10 km |
| Jun 28, 1997 | 45 km SE of Porto Judeu, Portugal | M5.1 | 144 km | 10 km |
| Apr 8, 2007 | 118 km SE of Povoação, Portugal | M5.0 | 125 km | 10 km |
| Apr 9, 2007 | 96 km SE of Povoação, Portugal | M5.0 | 102 km | 10 km |
| Apr 6, 2007 | 78 km SE of Povoação, Portugal | M5.0 | 84 km | 10 km |
| Jun 18, 1991 | 46 km NW of Mosteiros, Portugal | M4.9 | 91 km | 10 km |
| Dec 9, 1999 | 107 km SE of Senhora do Rosário, Portugal | M4.9 | 114 km | 10 km |
| Mar 24, 1996 | 53 km SE of Porto Martins, Portugal | M4.9 | 131 km | 10 km |
| Apr 11, 2014 | 66 km WNW of Mosteiros, Portugal | M4.9 | 113 km | 10 km |
| Aug 27, 1997 | 69 km SE of Porto Martins, Portugal | M4.9 | 118 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
3 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2017 | Ophelia | Category 3 | 115 mph | 253 km |
| 2012 | Gordon | Category 1 | 92 mph | 80 km |
| 2006 | Gordon | Category 1 | 81 mph | 72 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1614 | AZORES | Eruption + Earthquake | 3.0 m | 200 | 127 km |
| 1939 | AZORES | Earthquake | 0.2 m | - | 106 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Furnas (1 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Furnas | Stratovolcano | 805 m (2,641 ft) | 1630 | 1 km |
| Agua de Pau | Stratovolcano | 947 m (3,107 ft) | 1564 | 14 km |
| Picos Volcanic System | Pyroclastic cone(s) | 350 m (1,148 ft) | 1652 | 32 km |
| Sete Cidades | Stratovolcano | 856 m (2,808 ft) | 1880 | 43 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 54°F (12°C) | 4.8 in | |
| February | 54°F (12°C) | 4.1 in | Coldest |
| March | 55°F (13°C) | 3.9 in | |
| April | 56°F (13°C) | 3.3 in | |
| May | 58°F (15°C) | 2.6 in | |
| June | 62°F (17°C) | 1.9 in | |
| July | 66°F (19°C) | 1.6 in | Driest |
| August | 68°F (20°C) | 2.3 in | Warmest |
| September | 67°F (19°C) | 3.8 in | |
| October | 63°F (17°C) | 4.8 in | |
| November | 59°F (15°C) | 5.5 in | Wettest |
| December | 56°F (14°C) | 5.1 in |
Furnas has a seasonal temperature swing of 14°F / from 54°F in February to 68°F in August. Total annual precipitation is 43.5 inches, with November being the wettest month (5.5") and July the driest (1.6").