August 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
August, the last month of the summer, in Naples, is a hot month, with average temperature ranging between max 30°C (86°F) and min 22.7°C (72.9°F).
The perfect water temperature of 26°C (78.8°F) with 8mm (0.31") of accumulated rainfall and only 5.2 rainfall days, makes August a great period for swimming and other water activities.

Temperature

With an average high-temperature of 30°C (86°F) and an average low-temperature of 22.7°C (72.9°F), August is the warmest month in Naples.

Heat index

The average heat index in August is appraised at a tropical 33°C (91.4°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'apparent temperature', or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (wind, pregnancy, metabolic differences), and activity. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

August is the least humid month in Naples, with an average relative humidity of 61%.

Rainfall

August is the month with the least rainfall. Rain falls for 5.2 days and accumulates 8mm (0.31") of precipitation.

Snowfall

March through December are months without snowfall in Naples.

Sea temperature

The month with the warmest seawater is August, with an average sea temperature of 26°C (78.8°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In Naples, the average length of the day in August is 13.8h.

Sunshine

The average sunshine in Naples is 12h.

UV index

The average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the warmest month in Naples?

The warmest month in Naples is August, with an average high-temperature of 30°C (86°F) and an average low-temperature of 22.7°C (72.9°F).

What is the temperature in August in Naples?

In August, in Naples, Italy, the average high-temperature is 30°C (86°F), and the average low-temperature is 22.7°C (72.9°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that combines relative humidity and air temperature, in August is calculated to 33°C (91.4°F).

What is the least humid month in Naples?

August is the least humid month, with an average relative humidity of 61%.

What is the average humidity in August in Naples?

In Naples, the average relative humidity in August is 61%.

How much does it rain in Naples in August?

In Naples, in August, it is raining for 5.2 days, with typically 8mm (0.31") of accumulated precipitation.

What is the driest month in Naples?

The month with the least rainfall in Naples, Italy, is August when the rain falls for 5.2 days and typically collects 8mm (0.31") of precipitation.

When it does not snow in Naples?

March through December are months without snowfall in Naples, Italy.

When is the sea warmest in Naples?

August is the month with the warmest seawater, with an average sea temperature of 26°C (78.8°F).

What is the water temperature in August in Naples?

In Naples, Italy, the average seawater temperature in August is 26°C (78.8°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in August in Naples?

The average length of the day in August in Naples is 13.8h.

How long on average sun shines in August in Naples?

The average sunshine in August in Naples, Italy, is 12h.

What is the UV index intensity in August in Naples?

The average daily maximum UV index in August in Naples is 6. A UV Index of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV rays.
Average temperature in August - Naples, Italy
  • Average high temperature in August: 30°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 August: 22.7°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 August - Naples, Italy
  • Average pressure in August: 1014.6mbar

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 August - Naples, Italy
  • Average wind speed in August: 8.7km/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 August - Naples, Italy
  • Average humidity in August: 61%

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

Average rainfall in August - Naples, Italy
  • Average rainfall in August: 8mm

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

Average rainfall days in August - Naples, Italy
  • Average rainfall days in August: 5.2 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 August - Naples, Italy
  • Average snowfall in August: 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 August - Naples, Italy
  • Average snowfall days in August: 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 August - Naples, Italy
  • Average sea temperature in August: 26°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 August / Average sunshine in August - Naples, Italy
  • Average daylight in August: 13.8h

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 August: 12h

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 August - Naples, Italy
  • Average sunshine days in August: 23.6 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 August - Naples, Italy
  • Average UV index in August: 6

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 August - Naples, Italy
  • Average cloud cover in August: 9

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 August - Naples, Italy
  • Average visibility in August: 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).