April weather forecast and climate
Naples, Italy

A distant view of Mount Vesuvius, from Naples in Italy, with a beautiful blue waterfront
A distant view of Mount Vesuvius, from Naples in Italy, with a beautiful blue waterfront
April is an enjoyable spring month in Naples, Italy, with average temperature varying between 12.1°C (53.8°F) and 18.4°C (65.1°F).

Temperature

In April, the average high-temperature slightly increases, from a mild 15°C (59°F) in March, to an enjoyable 18.4°C (65.1°F). In Naples, the average low-temperature is 12.1°C (53.8°F).

Humidity

In Naples, the average relative humidity is 70%.

Rainfall

In Naples, in April, it is raining for 12 days, with typically 32mm (1.26") of accumulated precipitation. Throughout the year, in Naples, there are 139.4 rainfall days, and 569mm (22.4") of precipitation is accumulated.

Snowfall

March through December are months without snowfall.

Sea temperature

In April, the average sea temperature is 15.7°C (60.3°F).
Note: For swimming, a surface water temperature of 15.7°C (60.3°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

In April, the average length of the day in Naples is 13.3h.

Sunshine

In Naples, the average sunshine is 10.5h.

UV index

In Naples, the average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: In April, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in April in Naples?

The average high-temperature, in April, is 18.4°C (65.1°F), while the average low-temperature is 12.1°C (53.8°F).

What is the average humidity in April in Naples?

The average relative humidity in April in Naples is 70%.

How much does it rain in Naples in April?

In April, in Naples, Italy, the rain falls for 12 days. Throughout April, 32mm (1.26") of precipitation is accumulated.

When it does not snow in Naples?

In Naples, Italy, snow does not fall in March through December.

What is the sea water temperature in April in Naples?

In Naples, Italy, in April, the average water temperature is 15.7°C (60.3°F). For swimming, a surface water temperature of 15.7°C (60.3°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Naples have in April?

The average length of the day in April in Naples is 13.3h.

How long on average sun shines in April in Naples?

The average sunshine in April is 10.5h.

What is the UV index intensity in April in Naples?

In Naples, Italy, the average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to the UV radiation.
Average temperature in April - Naples, Italy
  • Average high temperature in April: 18.4°C

The warmest month (with the highest average high temperature) is August (30°C).
The month with the lowest average high temperature is January (12.3°C).

  • Average low temperature in April: 12.1°C

The month with the highest average low temperature is August (22.7°C).
The coldest months (with the lowest average low temperature) are January and February (7.8°C).

Average pressure in April - Naples, Italy
  • Average pressure in April: 1014mbar

The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is April (1014mbar).

Average wind speed in April - Naples, Italy
  • Average wind speed in April: 10.8km/h

The windiest month (with the highest average wind speed) is February (13.9km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).

Average humidity in April - Naples, Italy
  • Average humidity in April: 70%

Months with the highest relative humidity are January and November (73%).
The month with the lowest relative humidity is August (61%).

Average rainfall in April - Naples, Italy
  • Average rainfall in April: 32mm

The wettest month (with the highest rainfall) is November (114mm).
The driest month (with the least rainfall) is August (8mm).

Average rainfall days in April - Naples, Italy
  • Average rainfall days in April: 12 days

The month with the highest number of rainy days is January (15.4 days).
Months with the least rainy days are July and August (5.2 days).

Average snowfall in April - Naples, Italy
  • Average snowfall in April: 0mm

Months with the highest snowfall are January and February (2mm).
Months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in April - Naples, Italy
  • Average snowfall days in April: 0 days

Months with the highest number of snowfall days are January and February (0.4 days).
Months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

Average sea temperature in April - Naples, Italy
  • Average sea temperature in April: 15.7°C

The best month for swimming (with the highest average sea temperature) is August (26°C).
The coldest month (with the lowest average sea temperature) is February (13.9°C).

Average daylight in April / Average sunshine in April - Naples, Italy
  • Average daylight in April: 13.3h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in April: 10.5h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is January (Average sunshine: 5.6h).

Average sunshine days in April - Naples, Italy
  • Average sunshine days in April: 15.4 days

The month with the most sunshine days is July (24 days).
The month with the least sunshine days is February (11.1 days).

Average UV index in April - Naples, Italy
  • Average UV index in April: 5

The month with the highest UV index is July (UV index 7).
Months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in April - Naples, Italy
  • Average cloud cover in April: 29

The month with the most cloud cover is January (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 9).

Average visibility in April - Naples, Italy
  • Average visibility in April: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).