Naples sits on the coast of the Campania region in southern Italy, on the Bay of Naples in the shadow of Mount Vesuvius, at approximately 40.85°N, 14.27°E. It has a Mediterranean climate (Köppen Csa) with hot, dry summers and mild, wet winters. Its southerly, directly coastal position makes it a touch milder than Rome and rather wetter in autumn and winter, with the sea keeping temperatures gentle year-round.

Summer, from June to August, is hot, sunny and dry, with July and August the warmest months — average highs around 29–30°C — pleasantly tempered on the coast by afternoon sea breezes. Hot spells driven by the African Scirocco can raise the temperature and humidity sharply, but the seaside setting generally keeps the heat comfortable. Rain is scarce in high summer, and the warm, sunny weather draws crowds to the bay and nearby coast.

Winter, from December to February, is mild and the wet season, with January the coolest month — average highs around 12–13°C and lows near 5–6°C, rarely approaching freezing on the coast. Sunny spells alternate with periods of rain, sometimes heavy, and the mildness makes Naples comfortable to visit even in midwinter, though the surrounding hills and Apennines can see snow.

Naples receives around 800–900 mm of rain a year in the Mediterranean pattern, concentrated in autumn and winter — October to December is the wettest stretch, when rain can fall in heavy bursts — while summer is largely dry. Being directly on the coast and further south, it is a little rainier in the cool season than inland Rome. Live rainfall, humidity, and pressure readings for the city are shown in the panels above.

Naples' position on the Bay of Naples gives it a gentle, sea-moderated climate, milder in winter than cities further north and inland. The hot, humid Scirocco from North Africa is the main disruptive influence, occasionally bringing spells of oppressive heat and fine Saharan dust in the warmer months, while spring and autumn offer the most agreeable weather for exploring the city and coast.

To follow any single measurement in Naples 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.