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Contents
- The climate of Ischia
- The best time to visit Ischia
- The worst time to visit Ischia
- Spring weather in Ischia
- Summer weather in Ischia
- Autumn weather in Ischia
- Winter weather in Ischia
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average UV index
Climate and monthly weather forecast
The climate of Ischia
With a location in the Tyrrhenian Sea, the Italian island of Ischia boasts a Mediterranean climate (Csa) as per the Köppen climate classification. This means that Ischia experiences warm, often hot, dry summers, while the winters are mild and feature more precipitation. A glance at the weather year-round reveals a pattern of average high temperatures scaling from 13°C (55.4°F) in the initial months of the year, ascending to the peak of 29°C (84.2°F) in July and August, before gradually descending back to 14°C (57.2°F) by December. The average low temperatures follow a similar trend, beginning at 4°C (39.2°F) in January, reaching 18°C (64.4°F) in July and August, and falling back to 6°C (42.8°F) in December.
Rainfall in Ischia shows an inverse relation to temperatures, highest in late autumn and winter, with November being the wettest month, recording 139mm (5.47") of precipitation. The driest month appears to be July, with rainfall amounting to a mere 20mm (0.79"). Meanwhile, the island luxuriates in ample sunlight, ranging from 15.1 hours in June to a shorter span of 9.3 hours in December. Sunshine hours are most plentiful during the summer, peaking at 10 hours in July, then gradually decreasing to a low of 3 hours in December.
Rainfall in Ischia shows an inverse relation to temperatures, highest in late autumn and winter, with November being the wettest month, recording 139mm (5.47") of precipitation. The driest month appears to be July, with rainfall amounting to a mere 20mm (0.79"). Meanwhile, the island luxuriates in ample sunlight, ranging from 15.1 hours in June to a shorter span of 9.3 hours in December. Sunshine hours are most plentiful during the summer, peaking at 10 hours in July, then gradually decreasing to a low of 3 hours in December.
The best time to visit Ischia
Considering the climate data, the balmy months of June, July, and August become the recommended period for visiting Ischia. During this time, the temperature fluctuates between 26°C (78.8°F) to 29°C (84.2°F), with minimums resting between 15°C (59°F) to 18°C (64.4°F). With these conditions, visitors can enjoy comfortably warm outdoor experiences. The sea temperature during this period ranges from 23.3°C (73.9°F) to 25.6°C (78.1°F), making it an opportune time for water-related activities. Affirming this pleasant weather, rainfall levels drastically drop from 43mm (1.69") in May to 20mm (0.79") in July. Coupled with the long daylight hours of approximately 15 hours, tourists can revitalize in the generous Italian sunshine that graces Ischia during these months.
The worst time to visit Ischia
Rainfall increases substantially from September onwards, cresting at 139mm (5.47") in November. Alongside the rain, the average high temperature dips noticeably, falling from 27°C (80.6°F) in September to 14°C (57.2°F) in December. Consequently, the period from November to January might not be ideal for travelers aiming to explore outdoor adventures. The sea temperature also retreats, declining from 24.8°C (76.6°F) in September to a cooler 16.4°C (61.5°F) in December. Considering these conditions, travelers should be prepared for colder and wetter circumstances.
Spring weather in Ischia
Spring in Ischia is characterized by gradually increasing temperatures, with highs ranging from 15°C (59°F) in March to 23°C (73.4°F) by May. The lows also show a notable increase, from 6°C (42.8°F) in March to 12°C (53.6°F) in May. Concurrently, spring marks the dissipation of winter rains, as averages drop from 73mm (2.87") in March to 43mm (1.69") by May. Consequently, visitors can anticipate lesser precipitation and enjoyable warmth around this time.
Summer weather in Ischia
Typified by long, sunny, and dry days, summertime in Ischia promises rejuvenating vacations. Average high temperatures hover around the mid-twenty°C mark, while the lows stay comfortably in mid-teens. Rainfall hits a minimum, with just 20mm (0.79") in July and 41mm (1.61") in August. This limited rainfall and ample sunshine allow unhindered enjoyment during the summer season.
Autumn weather in Ischia
Autumn witnesses a transitional weather pattern, with temperatures declining from 27°C (80.6°F) in September to 17°C (62.6°F) in November. Rainfall commences its uphill climb, rising from 73mm (2.87") in September to 139mm (5.47") by November. This dramatic increase in rainfall aligns with shorter daylight hours, with Ischia experiencing approximately 11 hours by November.
Winter weather in Ischia
Winter brings cooler weather to Ischia, with average highs dropping to 13°C (55.4°F) in January, paired with lows settling at 5°C (41°F). Rainfall remains substantial from December to February, with an average of 106mm (4.17") per month during these winter months. As such, wintertime in Ischia translates to cooler days with abundant rainfall. However, the island’s Mediterranean location ensures relatively milder winters compared to many other European regions.
Weather in January
In Ischa, Italy January experiences cooler weather, being one of the coldest months. Despite its position in the Mediterranean, the skies during this month are often greyer and more overcast. January reports the most rainy days with 14 days, along with a total rainfall of 101mm (3.98"). Weather in January »
Weather in February
Inhabitants and visitors of Ischia can regard February as a continuation of the cold weather from January. Though remaining fairly cool, the city begins a transition toward its warmer seasons. Moisture levels drop slightly during this month, with the total rainfall decreasing from 101mm (3.98") in January to 81mm (3.19"). Weather in February »
Weather in March
As spring draws closer in Ischia, March manifests a hint of the seasonal change. The climate begins to appreciate, with temperatures increasing and more daylight hours compared to February. A decrease in both rainy days from 15 to 13 and total rainfall from 81mm (3.19") to 73mm (2.87") is noticeable. Weather in March »
Weather in April
The full bloom of spring takes effect in Ischia during April. The city experiences increased temperatures, reducing the necessity for heavy clothing. The total rainfall further declines from 73mm (2.87") in March to 67mm (2.64"), with 13 rainy days. Weather in April »
Weather in May
May marks a significant warm up for Ischia, kick-starting the summer season. The city experiences a notable incline in warmer temperatures and extended daylight hours. Along with these warmer conditions, May also sees a decrease in rainfall, dropping to 43mm (1.69"). Weather in May »
Weather in June
June in Ischia brings warm summer weather, leading to a bustling tourist season. Extended daylight hours and a spike in temperatures enhance the outdoor appeal of the city. With its minimal rainfall of only 27mm (1.06"), June ranks among Ischia’s driest months. Weather in June »
Weather in July
July is one of the hottest months in Ischia, attracting sun-seekers from around the world. The Mediterranean sun bathes the city in warmth and light, creating a delightful atmosphere. Receiving only 20mm (0.79") of rainfall, July is the driest month for Ischia. Weather in July »
Weather in August
Ischia enjoys its warmest weather in August, with the city basking in the late summer’s heat. Temperatures peak during this month, drawing sun-loving tourists to its gorgeous beaches. Despite the heat, August sees a slight rise in rainfall from 20mm (0.79") in July to 41mm (1.61"). Weather in August »
Weather in September
September offers an idyllic weather balance as Ischia transitions from summer to autumn. Characterized by pleasantly warm days and cooler nights, it remains a perfect time for exploration. Rainfall increases to 73mm (2.87") in comparison to August, signalling the onset of the wetter seasons. Weather in September »
Weather in October
As October arrives in Ischia, the lull of autumn becomes evident. With a cooler climate, shorter daylight hours and increased rainfall, the clear signs of a shift in seasons are plain. October sees a noticeable leap in total rainfall, increasing to 114mm (4.49"). Weather in October »
Weather in November
November carries forward the coolness of autumn, with Ischia exhibiting a noticeable drop in temperatures. The city slows down its pace, ushering in a serene ambience as tourist footfall reduces. Rainfall in Ischia peaks in November, reaching its highest at 139mm (5.47"). Weather in November »
Weather in December
December, the closing month of the year, brings winter to the city of Ischia. With a cooler climate, shorter daylight hours, and increased rainfall, the signs of winter become quite apparent. This month sees a decrease in total rainfall from 139mm (5.47") in November to 108mm (4.25"). Weather in December »
Updated: Jan 27, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Ischia?
January and February, when the average high-temperature reaches 13°C (55.4°F), are the coldest months.
How much does it rain in Ischia?
Throughout the year, in Ischia, Italy, there are 133 rainfall days, and 887mm (34.92") of precipitation is accumulated.
When is the sea coldest in Ischia?
February is the month with the coldest seawater, with an average sea temperature of 13.9°C (57°F).
When are the longest days in Ischia?
The month with the longest days is June, with an average of 15h and 0min of daylight.
What are the months with the highest UV index in Ischia?
The months with the highest UV index in Ischia are June and July, with an average maximum UV index of 9.
What are the warmest months in Ischia?
The months of July and August see the peak of Ischia's temperatures, averaging a high of 29°C (84.2°F).
What is the driest month in Ischia?
The month with the least rainfall in Ischia, Italy, is July, when the rain falls for 4 days and typically collects 20mm (0.79") of precipitation.
What month has the most sunshine in Ischia?
The month with the most sunshine in Ischia, Italy, is July, with an average of 10h of sunshine.
What month is the sea warmest in Ischia?
The month with the warmest seawater is August, with an average sea temperature of 25.8°C (78.4°F).
When is Daylight Saving Time (DST) in Ischia?
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Ischia, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.
What is the wettest month in Ischia?
The month with the most rainfall in Ischia, Italy, is November, when the rain falls for 15 days and typically aggregates up to 139mm (5.47") of precipitation.
What is the month with the shortest days in Ischia?
December has the shortest days of the year in Ischia, with an average of 9h and 18min of daylight.
What is the month with the least sunshine in Ischia?
December has the least sunshine of the year in Ischia, with an average of 3h of sunshine.
What is the month with the lowest UV index in Ischia?
December is the month with the lowest UV index in Ischia, with an average maximum UV index of 1.
Average temperature
Ischia, Italy
The warmest months (with the highest average high temperature) are July and August (29°C).
The months with the lowest average high temperature are January and February (13°C).
The months with the highest average low temperature are July and August (18°C).
The coldest month (with the lowest average low temperature) is January (4°C).
Average rainfall
Ischia, Italy
The wettest month (with the highest rainfall) is November (139mm).
The driest month (with the least rainfall) is July (20mm).
Average rainfall days
Ischia, Italy
- Average rainfall days in January:
14 days - Average rainfall days in February:
13 days - Average rainfall days in March:
15 days - Average rainfall days in April:
13 days - Average rainfall days in May:
10 days - Average rainfall days in June:
7 days
- Average rainfall days in July:
4 days - Average rainfall days in August:
6 days - Average rainfall days in September:
9 days - Average rainfall days in October:
12 days - Average rainfall days in November:
15 days - Average rainfall days in December:
15 days
The months with the highest number of rainy days are March, November and December (15 days).
The month with the least rainy days is July (4 days).
Average sea temperature
Ischia, Italy
The best month for swimming (with the highest average sea temperature) is August (25.8°C).
The coldest month (with the lowest average sea temperature) is February (13.9°C).
Average daylight / Average sunshine
Ischia, Italy
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
The month with the most sunshine is July (Average sunshine: 10h).
The month with the least sunshine is December (Average sunshine: 3h).
Average UV index
Ischia, Italy
The months with the highest UV index are June and July (UV index 9).
The month with the lowest UV index is December (UV index 1).
