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Genoa (Genova), the capital of Liguria and Italy's great historic port, sits on a narrow strip of the Ligurian coast in northwestern Italy, hemmed in between the sea and the steep Apennines rising immediately behind at approximately 44.41°N, 8.93°E. It has a Mediterranean-to-humid-subtropical climate (Köppen Cfa/Csa) — warm summers, mild winters — and is notably rainy for a Mediterranean city.
Summer, from June to August, is warm and humid rather than scorching, with July and August the warmest — average highs around 27–28°C — tempered by sea breezes off the Ligurian Sea. Rain is much reduced but never absent, and thunderstorms can build over the mountains behind the city; the coastal position keeps the nights warm and muggy.
Winter, from December to February, is mild, with January the coolest month — average highs around 11–12°C and lows near 5–6°C, and frost rare thanks to the sea and the sheltering mountains. Snow is uncommon in the city though frequent on the heights just above. This is the wetter, greyer, windier season, with storms rolling in off the sea.
Genoa is wet by Mediterranean standards, receiving around 1,000–1,100 mm of rain a year, concentrated in autumn when warm sea temperatures fuel intense storms; the steep Apennines rising directly behind the city force the moist sea air violently upward, generating extraordinary downpours. Live rainfall, humidity, and pressure readings for the city are shown in the panels above.
Genoa is notorious for extreme rainfall: the mountains rising straight from the shore lift moist sea air into stationary, torrential storms, and the Bolzaneto district recorded 948 mm in a single day in September 1970 — the highest 24-hour rainfall ever measured in Italy. Autumn flash floods remain the city's most serious weather hazard.
To follow any single measurement in Genoa more closely, use our live instruments: the online barometer for atmospheric pressure, the thermometer for temperature, the hygrometer for humidity, the anemometer for wind speed, the wind vane for wind direction, and the rain gauge for rainfall.