Climate and hazards
Temperate hill climate with cold winters and valley fog, hot dry summers; snow in the Apennines (Monte Cucco, Castelluccio, Forca Canapine). One of Italy's most seismic regions: Valnerina and Norcia in zone 1 (1997 and 2016 earthquakes). Good air, except the Terni basin.
Sections: Seasons · Rainfall · Temperatures · Air quality · Environmental hazards
Climate
Umbria has a temperate hill climate: cold winters with frost, persistent fog in the Tiber valleys, the Valle Umbra (Foligno, Spoleto) and the Terni basin; hot dry summers, breezier on the hills (Perugia, Todi, Orvieto). In the Apennines (Monte Cucco, Monti Sibillini with Castelluccio di Norcia at 1,450 metres, Forca Canapine) snow lies from December to March, with small ski resorts. Lake Trasimeno slightly softens the climate of the western area and suffers droughts that lower its level.
Seismicity
Umbria sits on the Apennine fault: the Umbria-Marche earthquake of September 1997 (Colfiorito, Assisi with the collapse of the vaults of the Upper Basilica) and the 2016 sequence (Norcia, 30 October, the strongest shock in Italy since 1980) mainly hit the Valnerina, where reconstruction is still under way. Norcia, Cascia, Preci and the Valnerina municipalities are in zone 1; most of the region in zone 2, with only Orvieto and the Trasimeno area in zone 3. Buyers and renters should check a building's seismic class and construction year.
Air
Air quality is good in most of the region; the Terni basin, enclosed by mountains and home to steelworks and traffic, records PM10 exceedances (Terni appears among the areas with stations above the limit in the SNPA 2024 report), and the Valle Umbra has winter episodes linked to wood heating. ARPA Umbria publishes the data and the Comune di Terni applies winter measures.
Missing: temp_jan_avg, temp_jul_avg, rain_days_year, air_pm10_days_over_limit
Sources
Updated: 2026-10-14
Updated: 2026-10-14
Updated: 2026-10-14
Reviewed: 10/23/2026 · by piero.avolio · rev. 1 · Period: → 2027-10-31
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