Ancona Geography & Climate

Ancona exists because of an accident of geology that occurs nowhere else on this coastline.

The elbow

The Italian Adriatic coast runs almost straight for hundreds of kilometres. At Ancona a limestone promontory pushes out and then bends sharply back on itself, creating a north-facing bay sheltered from the prevailing winds. The Greeks called the shape ankon, an elbow, and the name stuck.

Two hills

The old city climbs Monte Guasco, with the cathedral on top, and Monte Astagno, with the citadel. Between and below them the modern city fills the slope down to the quays, which is why almost every street in Ancona is on a gradient.

The Conero

South of the city the promontory rises to Monte Conero at 572 metres and falls straight into the sea in white cliffs. It is the only headland of any size between Trieste and the Gargano, and it makes the water below it clear and deep where the rest of the Adriatic is shallow and sandy.

Unstable ground

The same clays that make the hills make them move. The landslide of December 1982 displaced a large section of the northern slope, and the ground here is monitored continuously.

The hinterland

Behind the city the land falls away into low hills of clay and vines running back towards the Apennines, with the Esino valley as the main route inland.

The badia and the caves

Below the Conero cliffs the shoreline is pebble and rock rather than sand, with coves reachable only on foot or by boat and, at Portonovo, a freshwater lake a few metres behind the beach.

Facing east

Ancona looks out at the Balkans rather than at Italy, and the ferry timetable makes that geography obvious. The crossing to the Croatian coast is shorter than the drive to Rome.

Ancona has a coastal Mediterranean climate moderated in every direction by the sea it sits in.

Winter

Winter is mild by Italian inland standards and damp, with highs around 10°C and frost uncommon on the coast. Snow reaches the city every few years and rarely lasts, though the hills behind get it more often.

The bora

The cold northeasterly that comes down the Adriatic in winter hits Ancona directly. It is what makes the city feel colder than the thermometer says, and it is also why the harbour was built where it was.

Spring

Spring is long and pleasant, with April and May warm, green and clear; the sea is still cold well into June.

Summer

July and August are hot and humid rather than scorching, with highs in the low thirties and sea temperatures that make swimming the obvious answer. Humidity is the defining feature and makes nights sticky in the lower city.

Autumn

September is arguably the best month of the year here: the sea is at its warmest, the Conero beaches empty out after Ferragosto, and the light is long. Rain increases through October and November.

Rainfall

Moderate and spread through the year, heaviest in autumn. Heavy autumn rain is also what triggers movement on the unstable slopes, so it is not merely a matter of umbrellas here.

The sea as a thermostat

The Adriatic here is shallow and warms slowly, which is why the sea is still cold in June and still swimmable in October, and why the city is milder in winter and less baking in summer than the hills twenty kilometres inland.

What to bring

Something windproof in winter, and shoes for steep streets in any season.