Naples, where it is

The climate of Naples is Mediterranean, with mild, rainy winters and hot, sunny summers. The daily average temperature ranges from about 9 °C (48 °F) in January and February to about 24 °C (75 °F) in July and August.
Here are the average temperatures.
Naples - Average temperatures
Min (°C)446812161818151285
Max (°C)131315182326293026221714
Min (°F)393943465461646459544641
Max (°F)555559647379848679726357

Rainfall is quite abundant, in fact it amounts to about 1,000 millimeters (40 inches) per year; the wettest season is autumn, especially the months of October and November, followed by the winter months. Therefore, Naples is not always the "Sunshine City".
In summer, however, the rains are rare, and occur in the form of downpours or thunderstorms.
Here is the average precipitation.
Naples - Average precipitation

The city is exposed to the south-west wind ("libeccio"), which leads to mild and rainy days, but also to the north wind ("tramontana"), which brings a bit of cold, clouds and some rain. On summer afternoons, the breeze blows from the sea.

Winter, from December to February, is mild and rainy. The rains occur in periods of bad weather that last a few days, sometimes in the form of night thunderstorm, and are accompanied by the wind. There are also some pleasant and sunny days, with a bit of cold at night. In other cases, there can be cold days, due to the north wind, when some rain can fall, which becomes snow in the mountains, so that it is possible to admire the snow-covered Mount Vesuvius. In the coldest nights, the temperature can drop below freezing (0 °C or 32 °F), usually not by much (2/3 degrees Celsius).

Spring, from March to May, is mild; the rains gradually become more rare, and fine weather gradually more frequent. However, cold and windy days are still quite frequent in March, and sometimes also in April. At Easter, the good weather is not always guaranteed. May is usually a good month, nice and sunny, although there may still be some cool and rainy days, especially in the first part of the month.

Summer, from June to August, is hot and sunny. Typically, the air is humid, but sea breezes blow, tempering the heat. However, within the city, in the most densely populated neighbourhoods, the heat is felt more. Under the influence of the scirocco, the south wind from Africa, there can be hot days, with highs about 36/38 °C (97/100 °F). The rains are very rare, but we can not exclude some thunderstorms every so often.

Autumn, from September to November, is initially warm, and sometimes even hot, with many sunny days, especially in September and the first half of October; but this season is also rainy, with possible waves of bad weather, accompanied by rains and thunderstorms, sometimes strong, especially from mid-October. In November, there can be the first cold days, especially in the second half of the month.


The amount of sunshine in Naples is very good in summer, when good weather prevails, it is good in May and September, while in the rest of the year it's not always high, in fact, there are periods of good weather alternating with others in which the sky remains cloudy for a few days in a row.
Naples - Sunshine

In June, the temperature of the sea is a little cool to swim in, when it's around 22 °C (72 °F), while it becomes warm enough from July to September, when it is equal to or higher than 25 °C (77 °F). Here are the average sea temperatures.
Naples - Sea temperature
Temp (°C)151414151822252725221916
Temp (°F)595757596472778177726661

Best Time

The best times to visit Naples are from mid-April to mid-June, and from September to early October. In both cases, you must put into account some rainy days, especially from mid-April to mid-May and from mid-September to early October. In summer, especially in July and August, there can be many sunny days, not too hot, but in other cases the heat can be intense and sultry. However, those who can stand the heat can choose this period as well.
For a beach holiday, in Naples and the neighbouring coasts (Ischia, Capri, Sorrento, Amalfi) the best period is summer, in particular from June to mid-September, although as we said in June the sea is still a bit cool.