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Weather & Climate in Ariano Irpino-Martiri, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Ariano Irpino-Martiri enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 44°F in January while summers reach 79°F in July. The area gets 293 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 33.9 inches. The area receives 2.3 inches of snow annually. The city sits at an elevation of 2,024 feet.
Temperature
44°F Jan (6°C)
79°F Jul (26°C)
| Annual Average | 59.1°F |
| 9% above US avg | |
| January Average | 44°F (6°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 2,024 ft (617 m) |
| Area | 100.8 sq mi (261.1 km²) |
| Population Density | 97/sq mi |
| Coordinates | 41.1602°N, 15.1063°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
675 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.9.
| Oct 31, 2002 | 4 km WSW of Larino, Italy | M5.9 | 73 km | 10 km |
| May 5, 1990 | 6 km NE of Avigliano, Italy | M5.8 | 70 km | 10 km |
| Nov 1, 2002 | 2 km ESE of Casacalenda, Italy | M5.8 | 66 km | 10 km |
| Sep 9, 1998 | 2 km NNE of Castelluccio Superiore, Italy | M5.6 | 145 km | 10 km |
| Sep 30, 1995 | 3 km S of Ischitella, Italy | M5.2 | 103 km | 25 km |
| May 26, 1991 | 3 km E of Avigliano, Italy | M5.1 | 73 km | 8 km |
| Mar 14, 2025 | 14 km NNE of Lesina, Italy | M5.0 | 95 km | 10 km |
| Feb 16, 2013 | 3 km W of Sora, Italy | M4.8 | 142 km | 11 km |
| Sep 14, 1999 | 23 km SW of Marina di Camerota, Italy | M4.8 | 148 km | 297 km |
| May 29, 2006 | 6 km SE of Carpino, Italy | M4.7 | 97 km | 31 km |
| Mar 28, 2023 | 2 km NNW of Montagano, Italy | M4.7 | 67 km | 7 km |
| Aug 31, 1993 | 18 km WSW of Palinuro, Italy | M4.7 | 132 km | 315 km |
| Sep 21, 2019 | 4 km WNW of Agropoli, Italy | M4.7 | 89 km | 300 km |
| Feb 1, 1990 | 10 km NNE of Isole Tremiti, Italy | M4.7 | 122 km | 10 km |
| Apr 3, 1996 | 0 km NNE of Muro Lucano, Italy | M4.7 | 55 km | 10 km |
| May 5, 1990 | 1 km W of Pietragalla, Italy | M4.6 | 78 km | 13 km |
| Feb 20, 2008 | 3 km W of Belmonte Castello, Italy | M4.6 | 120 km | 9 km |
| Sep 27, 2012 | 0 km E of Sant'Arcangelo Trimonte, Italy | M4.6 | 13 km | 6 km |
| Mar 19, 1997 | 1 km SSE of Sepino, Italy | M4.6 | 48 km | 10 km |
| Nov 1, 2002 | 2 km SE of Lupara, Italy | M4.5 | 71 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
7 tsunamis recorded within 500 km. Highest wave on record: 5.0 m (16 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1631 | BAY OF NAPLES | Eruption | 5.0 m | 4,000 | 68 km |
| 1906 | TYRRHENIAN SEA | Astronomical | 0.4 m | 350 | 68 km |
| 1805 | CAMPANIA | Earthquake | — | — | 65 km |
| 1731 | TYRRHENIAN SEA | Earthquake | — | 3,600 | 50 km |
| 1627 | GARGANO PENINSULA | Earthquake | — | 5,000 | 67 km |
| 1562 | REGGIO DI CALABRIA | Earthquake | — | — | 81 km |
| 79 | BAY OF NAPLES | Eruption | — | 2,100 | 68 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Vesuvius (68 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Vesuvius | Stratovolcano | 1,281 m (4,203 ft) | 1944 | 68 km |
| Campi Flegrei | Caldera | 458 m (1,503 ft) | 1538 | 89 km |
| Ischia | Complex | 789 m (2,589 ft) | 1302 | 112 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (6°C) | 2.8 in | |
| February | 42°F (6°C) | 2.5 in | Coldest |
| March | 46°F (8°C) | 2.3 in | |
| April | 51°F (11°C) | 2.3 in | |
| May | 59°F (15°C) | 1.8 in | |
| June | 66°F (19°C) | 1.1 in | |
| July | 79°F (26°C) | 1.1 in | Warmest, Driest |
| August | 72°F (22°C) | 1.3 in | |
| September | 66°F (19°C) | 2.2 in | |
| October | 58°F (14°C) | 2.8 in | |
| November | 49°F (10°C) | 3.6 in | Wettest |
| December | 44°F (7°C) | 3.1 in |
Ariano Irpino-Martiri has a seasonal temperature swing of 37°F / from 42°F in February to 79°F in July. Total annual precipitation is 26.9 inches, with November being the wettest month (3.6") and July the driest (1.1").