Naples Weather in May
May in Naples brings pleasant temperatures, with daytime highs of 21°C (70°F) and nights around 16°C (61°F). The perfect weather makes it a solid choice for a visit.
Rainfall in Naples in May
Typically around 10 days of rainfall are expected, averaging 55 mm (2.2 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Naples in May
May tends to be one of the perfect months in Naples, with 21°C (70°F) in the afternoon and 16°C (61°F) overnight. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. At 16°C (61°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Naples in May
The days are predominantly sunny, with an estimated total of around 244 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.
Average water temperature in May
At 18°C (64°F), the water is getting there — comfortable enough for most swimmers, though those used to warmer seas may still find it a touch cool.If your ideal day consists of dry skies and pleasant temperatures, May, June, July, August and September typically offer the best circumstances for Naples.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Italy, check out our Naples's climate page.
Naples Temperature in May
Min Temperature
16°C (61°F)
Max Temperature
21°C (70°F)
Water Temperature
18°C (64°F)
Chance of Rain
33%
Precipitation
55 mm (2.2 in)
Rainy days
10 days
Humidity
70%
Sunshine
244 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Naples typically rise from around 22°C (72°F) at the start of May to approximately 25°C (77°F) by the end. Nights are cool, with lows typically ranging from 12°C (54°F) to 16°C (61°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Naples in May
Browse day-by-day weather records for Naples spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Naples historical weather extremes in May
Based on weather observations in Naples between 1976 and 2026, these are the recorded extremes during May.
- The warmest day in May was on May 27, 2008, with a maximum of 34°C (93°F).
- The coldest May day was on May 1, 1980, with a maximum of 13°C (55°F).
- Nighttime temperatures dropped to 6°C (43°F) on May 7, 2019, marking the coldest May night on record.
Best Places in Italy in May
Find out more about the weather in Italy and which places have the best travel conditions in this month. See all of Italy in May →
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What to Wear in Naples in May
For Naples in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. With water temperatures around 18°C (64°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Naples in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Italy, check out our Naples's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Naples climate overview or explore weather in Italy.
