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Average weather, temperature, rainfall, sunshine hours

The climate of Naples, the capital of the Campania region, is
Mediterranean, with mild, rainy winters and hot, sunny summers.
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.
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 situations, there can be some cold days brought by the north wind (
tramontana), during which some rain can fall at sea level, which becomes snow in the mountains, so that it is possible to admire the snow-covered Mount Vesuvius.
On the coldest nights, the temperature can drop below freezing (0 °C or 32 °F), usually not by much (2/3 degrees Celsius). The cold record, -5.7 °C (21.7 °F), was set in January 2017, which barely exceeded the -5.6 °C (21.9 °F) registered in January 1981. On other occasions, the temperature dropped to -5 °C (23 °F) in January 1985 and January 1987, and a few other times to -4 °C (25 °F).
Snow in Naples is very rare. If southern Sicily is excluded, the southern Tyrrhenian coast which includes Naples is probably the least snowy area of Italy. However, occasionally you can see a snowfall. Snow is more likely to accumulate for a few hours in the upper areas of the city (Vomero, where the altitude is 200 meters or 650 feet, and Rione Alto, where it reaches 250 meters or 820 feet). Snowfalls that have whitened the city, including the waterfront, are very rare. The most abundant were those of February 1956, January 1985 and the end of February 2018, in which the snow reached about 20 cm (8 in) in the upper areas of the city, to which other less important episodes can be added (March 1971, February 1986, December 1988, January and March 2005).
Spring, from March to May, is mild; the rains gradually become rarer, and fine weather more frequent. However, cold and windy days are still quite frequent in March, and sometimes also in April. At Easter, 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. The rains are very rare, but we can not exclude some thunderstorms every so often.
Typically, the air is humid, but the sea breeze blows, relieving 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 of 35 °C (95 °F) and more. The heat record, 40 °C (104 °F), was set in August 1981. More recently, the temperature reached 39.5 °C (103 °F) in August 2007.
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. However, this season is also rainy, with possible waves of bad weather, accompanied by rains and thunderstorms, sometimes strong, especially by mid-October. In November, there can be the first quite 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, but also others in which the sky remains cloudy for a few days in a row.
In June, the temperature of the
sea is around 22 °C (72 °F), so it's a little cool to swim in, while it becomes warm enough from July to September, when it is equal to or higher than 25 °C (77 °F).
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 and not too hot days, 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 (see 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.
Naples - Climate data
In Naples, the
average temperature of the coldest month (January) is of
9.1 °C, that of the warmest month (August) is of
26.1 °C. Here are the average temperatures.
Naples - Average temperatures (1991-2020) |
Month | Min | Max | Mean |
---|
January | 4.7 | 13.5 | 9.1 |
---|
February | 5 | 14 | 9.5 |
---|
March | 7.3 | 16.5 | 11.9 |
---|
April | 9.9 | 19.5 | 14.7 |
---|
May | 14 | 23.8 | 18.9 |
---|
June | 18.1 | 28 | 23 |
---|
July | 20.4 | 30.6 | 25.5 |
---|
August | 21 | 31.2 | 26.1 |
---|
September | 17.2 | 27 | 22.1 |
---|
October | 13.5 | 23.2 | 18.4 |
---|
November | 9.4 | 18.5 | 14 |
---|
December | 5.9 | 14.4 | 10.2 |
---|
Year | 12.2 | 21.7 | 16.95 |
---|
Precipitation amounts to
1005 millimeters per year: it is therefore quite abundant. It ranges from
25 millimeters in the driest month (July) to
160 millimeters in the wettest one (November). Here is the average precipitation.
Naples - Average precipitationMonth | Days |
---|
January | 105 | 10 |
---|
February | 100 | 10 |
---|
March | 85 | 10 |
---|
April | 75 | 9 |
---|
May | 50 | 6 |
---|
June | 35 | 4 |
---|
July | 25 | 2 |
---|
August | 40 | 4 |
---|
September | 80 | 6 |
---|
October | 130 | 8 |
---|
November | 160 | 11 |
---|
December | 120 | 11 |
---|
Year | 1005 | 91 |
---|
The
sea temperature ranges from
14 °C in February to
27 °C in August. Here are the average sea temperatures.
Naples - Sea temperatureMonth |
---|
January | 1515 |
---|
February | 14 |
---|
March | 14.5 |
---|
April | 15.5 |
---|
May | 18.5 |
---|
June | 22.5 |
---|
July | 25.5 |
---|
August | 27 |
---|
September | 25 |
---|
October | 22 |
---|
November | 19"> |
---|
December | 16.5 |
---|
Year | 19.6 |
---|
There are on average around 2370
sunshine hours per year. Here are the average hours of sunshine per day.
Naples - Sunshine hoursMonth | Average | Total |
---|
January | 3.5 | 115 |
---|
February | 4.5 | 125 |
---|
March | 5 | 160 |
---|
April | 6.5 | 190 |
---|
May | 8 | 245 |
---|
June | 9.5 | 280 |
---|
July | 10 | 315 |
---|
August | 9.5 | 295 |
---|
September | 8 | 235 |
---|
October | 6 | 190 |
---|
November | 4 | 125 |
---|
December | 3.5 | 105 |
---|
Year | 6.5 | 2370 |
---|
Naples - Weather by month
Based on the period 1991-2020
January, the coldest month of the year, is generally a mild month. The average temperature is of
9.1 °C, with a minimum of
4.7 °C and a maximum of
13.5 °C.

On the coldest nights of the month, the temperature usually drops to around
-1 °C. However, it dropped to
-5.7 °C in January 2017.

On the warmest days of the month, the temperature usually reaches around
18 °C. However, it reached
21.5 °C in January 2018.

Precipitation amounts to
105 mm, distributed over 10 days.
The day lasts on average 9 hours and 35 minutes.

There are on average 3.5 hours of sunshine per day. So, the sun shines 39% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of
8.6 kph.

The average sea temperature is of
14.8 °C. Therefore, the sea is cold for swimming.
February is generally a mild month. The average temperature is of
9.5 °C, with a minimum of
5 °C and a maximum of
14 °C.

On the coldest nights of the month, the temperature usually drops to around
-0.5 °C. However, it dropped to
-3.4 °C in February 2009.

On the warmest days of the month, the temperature usually reaches around
18.5 °C. However, it reached
24.3 °C in February 2016.

Precipitation amounts to
100 mm, distributed over 10 days.
The day lasts on average 10 hours and 40 minutes.

There are on average 4.5 hours of sunshine per day. So, the sun shines 41% of the time.
The average humidity is 69%.
The average wind speed is of
9.8 kph.

The average sea temperature is of
14.1 °C. Therefore, the sea is very cold for swimming.
March is generally a mild month. The average temperature is of
11.9 °C, with a minimum of
7.3 °C and a maximum of
16.5 °C.

On the coldest nights of the month, the temperature usually drops to around
1 °C. However, it dropped to
-2.9 °C in March 2005.

On the warmest days of the month, the temperature usually reaches around
22.5 °C. However, it reached
26.2 °C in March 1991.

Precipitation amounts to
85 mm, distributed over 10 days.
The day lasts on average 12 hours and 0 minutes.

There are on average 5 hours of sunshine per day. So, the sun shines 42% of the time.
The average humidity is 69%.
The average wind speed is of
9.8 kph.

The average sea temperature is of
14.3 °C. Therefore, the sea is very cold for swimming.
April is generally a very mild month. The average temperature is of
14.7 °C, with a minimum of
9.9 °C and a maximum of
19.5 °C.

On the coldest nights of the month, the temperature usually drops to around
4.5 °C. However, it dropped to
-1 °C in April 2003.

On the warmest days of the month, the temperature usually reaches around
26 °C. However, it reached
31 °C in April 2013.

Precipitation amounts to
75 mm, distributed over 9 days.
The day lasts on average 13 hours and 25 minutes.

There are on average 6.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 69%.
The average wind speed is of
9.1 kph.

The average sea temperature is of
15.5 °C. Therefore, the sea is cold for swimming.
May is generally a warm month. The average temperature is of
18.9 °C, with a minimum of
14 °C and a maximum of
23.8 °C.

On the coldest nights of the month, the temperature usually drops to around
8.5 °C. However, it dropped to
5 °C in May 2019.

On the warmest days of the month, the temperature usually reaches around
29.5 °C. However, it reached
34.2 °C in May 2020.

Precipitation amounts to
50 mm, distributed over 6 days.
The day lasts on average 14 hours and 30 minutes. So the days are long.

There are on average 8 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 68%.
The average wind speed is of
8.7 kph.

The average sea temperature is of
18.6 °C. Therefore, the sea is very cool for swimming.
June is generally a warm to hot month. The average temperature is of
23 °C, with a minimum of
18.1 °C and a maximum of
28 °C.

On the coldest nights of the month, the temperature usually drops to around
13 °C. However, it dropped to
10 °C in June 2013.

On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
37 °C in June 2001.

Precipitation amounts to
35 mm, distributed over 4 days.
The day lasts on average 15 hours and 5 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.

There are on average 9.5 hours of sunshine per day. So, the sun shines 62% of the time.
The average humidity is 66%.
The average wind speed is of
8.3 kph.

The average sea temperature is of
22.5 °C. Therefore, the sea can be considered barely acceptable for swimming.
July is generally a warm to hot month. The average temperature is of
25.5 °C, with a minimum of
20.4 °C and a maximum of
30.6 °C.

On the coldest nights of the month, the temperature usually drops to around
16 °C. However, it dropped to
14 °C in July 1991.

On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
38.4 °C in July 1997.

Precipitation amounts to
25 mm, distributed over 2 days.
The day lasts on average 14 hours and 40 minutes. So the days are long.

There are on average 10 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 65%.
The average wind speed is of
8.2 kph.

The average sea temperature is of
25.7 °C. Therefore, the sea is warm enough for swimming.
August, the hottest month of the year, is generally a warm to hot month. The average temperature is of
26.1 °C, with a minimum of
21 °C and a maximum of
31.2 °C.

On the coldest nights of the month, the temperature usually drops to around
17 °C. However, it dropped to
15 °C in August 1995.

On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
39.5 °C in August 2007.

Precipitation amounts to
40 mm, distributed over 4 days.
The day lasts on average 13 hours and 40 minutes.

There are on average 9.5 hours of sunshine per day. So, the sun shines 70% of the time.
The average humidity is 66%.
The average wind speed is of
7.6 kph.

The average sea temperature is of
26.8 °C. Therefore, the sea is pleasantly warm and allows long swims.
September is generally a warm month. The average temperature is of
22.1 °C, with a minimum of
17.2 °C and a maximum of
27 °C.

On the coldest nights of the month, the temperature usually drops to around
12.5 °C. However, it dropped to
6.8 °C in September 2002.

On the warmest days of the month, the temperature usually reaches around
32 °C. However, it reached
35.4 °C in September 2011.

Precipitation amounts to
80 mm, distributed over 6 days.
The day lasts on average 12 hours and 25 minutes.

There are on average 8 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 68%.
The average wind speed is of
7.8 kph.

The average sea temperature is of
24.9 °C. Therefore, the sea is warm enough for swimming.
October is generally a warm month. The average temperature is of
18.4 °C, with a minimum of
13.5 °C and a maximum of
23.2 °C.

On the coldest nights of the month, the temperature usually drops to around
8 °C. However, it dropped to
4.9 °C in October 2012.

On the warmest days of the month, the temperature usually reaches around
28.5 °C. However, it reached
31.5 °C in October 2000.

Precipitation amounts to
130 mm, distributed over 8 days.
The day lasts on average 11 hours and 5 minutes.

There are on average 6 hours of sunshine per day. So, the sun shines 55% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of
7.4 kph.

The average sea temperature is of
22.2 °C. Therefore, the sea is cool for swimming.
November is generally a mild month. The average temperature is of
14 °C, with a minimum of
9.4 °C and a maximum of
18.5 °C.

On the coldest nights of the month, the temperature usually drops to around
3.5 °C. However, it dropped to
-1.2 °C in November 2001.

On the warmest days of the month, the temperature usually reaches around
24 °C. However, it reached
29.4 °C in November 2004.

Precipitation amounts to
160 mm, distributed over 11 days.
The day lasts on average 9 hours and 55 minutes.

There are on average 4 hours of sunshine per day. So, the sun shines 42% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of
8 kph.

The average sea temperature is of
19.1 °C. Therefore, the sea is very cool for swimming.
December is generally a mild month. The average temperature is of
10.2 °C, with a minimum of
5.9 °C and a maximum of
14.4 °C.

On the coldest nights of the month, the temperature usually drops to around
-0.5 °C. However, it dropped to
-4.5 °C in December 2007.

On the warmest days of the month, the temperature usually reaches around
19.5 °C. However, it reached
24.4 °C in December 2000.

Precipitation amounts to
120 mm, distributed over 11 days.
The day lasts on average 9 hours and 20 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.

There are on average 3.5 hours of sunshine per day. So, the sun shines 36% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of
9.2 kph.

The average sea temperature is of
16.5 °C. Therefore, the sea is cold for swimming.