Naples and Campania weather today, September 23: sunny but temperatures dropping

Wednesday, September 23, 2026, began with good weather in Naples. The forecast calls for clear or partly cloudy skies for most of the day, with no significant precipitation. According to updated data, temperatures in the capital will range between 17 and 26 degrees Celsius, with the highest expected in the afternoon.

The morning will be characterized by mostly sunny conditions, with some cloud cover only appearing in the evening. The weather pattern will therefore remain stable, with a decidedly cooler atmosphere than in previous days.

Wind is the main protagonist, especially in the morning

The day will be dominated by winds. Winds will be northerly, initially moderate, and may reach speeds of approximately 17 to 33 km/h in Naples, with stronger gusts in exposed areas. Winds are expected to ease during the evening.

The Campania Region Civil Protection Department issued a warning for locally strong north-northeast winds, possible gusts, and rough seas with storm surges along exposed coasts, valid until noon today. No significant rainfall-related issues are expected.

Temperatures dropping across Campania

The drop in temperatures will be noticeable in several areas of the region. Today's forecast calls for:

Naples: 18-25°C;
Salerno: 16-24°C;
Avellino: 13-22°C;
Benevento: 14-23°C;
Caserta: 17-25°C.

The regional picture will be generally sunny, with maximum temperatures mainly ranging between 21 and 26 degrees.

Rough seas, but improving in the afternoon

The sea will also be affected by the northerly winds. In the early hours, it will be rough near the coast and very rough offshore, while from late morning and especially in the afternoon, the swell will gradually decrease.

For those travelling by sea, therefore, the situation should improve as the hours pass.

A few more clouds tomorrow

The break in the wind will be accompanied by a gradual change in the weather pattern. More clouds are expected on Thursday, September 24th, while favorable conditions for some precipitation could return by the evening.

In short, today, September 23, Naples and Campania will experience a mostly sunny and dry day, with cooler temperatures, still strong winds in the early part of the day, and a gradually improving sea.