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Ischia Weather in May
Thinking of visiting Ischia in May? Expect pleasant temperatures reaching 21°C (70°F) during the day, dropping to 17°C (63°F) at night, with some rainfall likely.
Rainfall in Ischia in May
The climate data from previous years indicates about 9 days of rain, averaging 38 mm (1.5 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Ischia in May
May is a good time to be in Ischia. Days are excellent, reaching 21°C (70°F), with nights around 17°C (63°F). The difference between afternoon and evening temperatures is usually noticeable. With lows of 17°C (63°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Ischia in May
Expect a lot of sunshine this month, with about 250 hours of sun. These sunny conditions add to the overall experience.
Average water temperature in May
With water at 18°C (64°F), swimming is comfortable for most people. It feels refreshing rather than cold, though it depends a bit on personal preference.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Ischia Temperature in May
Min Temperature
17°C (63°F)
Max Temperature
21°C (70°F)
Water Temperature
18°C (64°F)
Chance of Rain
31%
Precipitation
38 mm (1.5 in)
Rainy days
9 days
Sunshine
250 hours
Percentage Sunshine
Ischia Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Ischia - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ischia typically rise from around 21°C (70°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 15°C (59°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 records for Ischia in May
Browse day-by-day weather records for Ischia spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ischia historical weather extremes in May
Based on 50 years of weather observations in Ischia between 1976 and 2026, these are the recorded extremes.
- On May 27, 2008, temperatures climbed to 34°C (93°F), marking the warmest May day on record.
- The coldest May day was on May 1, 1980, with a maximum of 14°C (57°F).
- The lowest overnight temperature recorded in May was 6°C (43°F) (May 2, 1982).
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 →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Ischia in May
For Ischia 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. Some rain is possible, so pack something to handle light showers. Expect water temperatures of around 18°C (64°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Ischia in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling10/10 -
Walking10/10 -
Barbeque9/10 -
Camping10/10 -
Outdoor sports10/10
Ischia 3-Day Forecast
More climate data for Ischia
Temperature Rainfall Sunshine Water Temp
See the full Ischia climate overview or explore weather in Italy.
Popular in May
Where to go in May - average daytime high across popular destinations.
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