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Climate - Naples

Temperature, rainfall, prevailing weather conditions, when to go

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Naples, where it is
The climate of Naples is Mediterranean, with mild, rainy winters and hot, sunny summers. The average temperature of January and February is about 9 °C, that of July and August is about 24 °C.
Here are the average temperatures.
Naples average temperatures
Naples J F M A M J J A S O N D
Min (°C) 4 4 6 8 12 16 18 18 15 12 8 5
Max (°C) 13 13 15 18 23 26 29 30 26 22 17 14

Rainfall is quite abundant, given that it amounts to about 1,000 millimetres per year; the wettest season is autumn, especially the months of October and November, followed by the winter months. So Naples is not always the city of sunshine.
In summer, however, the rains are rare, and occur in the form of downpour or thunderstorm.
Here is the average precipitation.
Average precipitation - Naples
Naples J F M A M J J A S O N D Year
Prec. (mm) 105 100 85 75 50 35 25 40 80 130 160 120 1005
Days 10 10 10 9 6 4 2 4 6 8 11 11 91

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, breezes blow 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, even in the form of night thunderstorm, and are accompanied by wind. There are also some pleasant and sunny days, with a bit of cold at night. In other cases, there may also be cold days, accompanied by 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, usually not by much (2/3 degrees Celsius).

Spring, from March to May, is mild; the rains gradually become rarer, and fine weather gradually more frequent. However, cold and windy days are still quite frequent in March, and sometimes even in April. At Easter the good weather is not 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. When the scirocco, the south wind, blows from Africa, there can be hot days, with highs about 36/38 °C. 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, associated with rain and thunderstorms, sometimes strong, especially from mid-October. In November, there can be the first cold days.

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


The temperature of the sea is a little cool, but all in all already acceptable for swimming in June, when it's around 22 °C, while it becomes warm enough from July to September, when it is equal to or higher than 25 °C.
Here are the average sea temperatures.
Sea temperature Naples
Naples J F M A M J J A S O N D
Sea (°C) 15 14 14 15 18 22 25 27 25 22 19 16

When to go

The best times to visit Naples goes 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 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: those who can stand the heat can also choose this period.
For swimming in Naples and the neighbouring coasts (Ischia, Capri, Sorrento, Amalfi) the best period is summer, especially from June to mid-September, although as we saw in June the sea is still a bit cool.

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