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Weather in Ischia for September 2025

Your guide to Ischia weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Ischia is slightly cooler than the historical average by -0.6 °C.

  • Expect cooler weather in the next days in Ischia with the forecast suggesting a temperature of 23.5 °C, lower than the historical average.

  • In general, the average temperature in Ischia at the beginning of September is 26 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.4 °C by the end of September.

    • Rain 🌧️

  • The climate of Ischia in September is notably wet, with an average of 15 rainy days, and a total of 131.8 mm of precipitation.

    • More

  • Is September a good time to visit Ischia? check out the best time to travel to Ischia page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
15
Dry days
Average rainy days
15
Rainy days
Average snowy days
0
Snow days
Average temperatures
23°/20°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
67 %
Avg humidity

Ischia Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
27°
2
Heavy rain at times
26°
3
Moderate or heavy rain shower
26°
4
Sunny
26°
5
Moderate or heavy rain shower
25°
6
Patchy rain possible
26°
7
Cloudy
26°
8
Sunny
26°
9
Moderate or heavy rain shower
25°
10
Patchy rain possible
25°
11
Patchy rain possible
25°
12
Moderate or heavy rain shower
24°
13
Moderate rain at times
22°
14
Overcast
23°
15
Sunny
23°
16
Patchy rain possible
25°
17
Patchy rain possible
25°
18
Sunny
26°
19
Sunny
26°
20
Sunny
25°
21
Sunny
25°
22
Sunny
24°
23
Patchy rain possible
24°
24
Patchy rain possible
23°
25
Patchy rain possible
22°
26
Patchy rain possible
22°
27
Patchy rain possible
21°
28
Patchy rain possible
20°
29
Sunny
21°
30
Sunny
21°

Temperatures trend during September in Ischia

See the weather trend as well as the moving average line

September weather in Ischia day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 27° /24° 0 mm 7
2 Sept. Heavy rain at times
Heavy rain at times
 26° /24° 4.6 mm 6
3 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 26° /23° 7.1 mm 6
4 Sept. Sunny
Sunny
 26° /23° 0 mm 7
5 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 25° /23° 4.8 mm 6
6 Sept. Patchy rain possible
Patchy rain possible
 26° /23° 0.8 mm 7
7 Sept. Cloudy
Cloudy
 26° /23° 0 mm 7
8 Sept. Sunny
Sunny
 26° /24° 0 mm 7
9 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 25° /23° 19 mm 7
10 Sept. Patchy rain possible
Patchy rain possible
 25° /22° 3 mm 6
11 Sept. Patchy rain possible
Patchy rain possible
 25° /22° 0.3 mm 6
12 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 24° /22° 5.1 mm 5
13 Sept. Moderate rain at times
Moderate rain at times
 22° /20° 2 mm 6
14 Sept. Overcast
Overcast
 23° /19° 0 mm 6
15 Sept. Sunny
Sunny
 23° /21° 0.1 mm 6
16 Sept. Patchy rain possible
Patchy rain possible
 25° /24° 0.3 mm 1.6
17 Sept. Patchy rain possible
Patchy rain possible
 25° /24° 0.1 mm 1.3
18 Sept. Sunny
Sunny
 26° /23° 0 mm 1.5
19 Sept. Sunny
Sunny
 26° /24° 0 mm 1.5
20 Sept. Sunny
Sunny
 25° /24° 0 mm 1.8
21 Sept. Sunny
Sunny
 25° /24° 0 mm 6
22 Sept. Sunny
Sunny
 24° /24° 0 mm 6
23 Sept. Patchy rain possible
Patchy rain possible
 24° /23° 2.7 mm 5
24 Sept. Patchy rain possible
Patchy rain possible
 23° /22° 2.1 mm 5
25 Sept. Patchy rain possible
Patchy rain possible
 22° /21° 0.2 mm 5
26 Sept. Patchy rain possible
Patchy rain possible
 22° /20° 2.1 mm 5
27 Sept. Patchy rain possible
Patchy rain possible
 21° /19° 0.3 mm 5
28 Sept. Patchy rain possible
Patchy rain possible
 20° /18° 2.7 mm 4
29 Sept. Sunny
Sunny
 21° /19° 0 mm 5
30 Sept. Sunny
Sunny
 21° /17° 0 mm 6
Next
Important Notice
Our weather forecast for Ischia in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Ischia forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Ischia weather in September vs August vs October

Compare September weather in Ischia with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
AugustSeptemberOctober
WeatherSunny
Sunny
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures28°/25°23°/20°21°/18°
Rainfall25 mm132 mm149 mm
Wind20.1 km/h22.3 km/h18.8 km/h
Humidity70%67%71%
Rainy days2 days15 days13 days
Dry days29 days15 days18 days

Planning a trip to Ischia? Discover the best time to visit

Ischia in September - FAQ

What are the expected maximum and minimum temperatures in Ischia during September?
During September, expect a variety of temperatures with highs around 23° and lows near 20°, suitable for diverse activities and preferences.
How much rainfall should be expected in Ischia during September?
Significant rainfall exceeding 131.8 mm is expected in Ischia during September, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Ischia during September?
The average wind speed in Ischia during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Ischia in September?

As you prepare for your trip to Ischia in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Ischia, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Umbrellas/Raincoats: For rainy days

September rainfall patterns in Ischia

Explore the daily rainfall trends and prepare for Ischias September weather 💧

UV exposure in Ischia during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

Quick links

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Location coordinates Where is Ischia?

Get accurate weather forecasts for Ischia, located at latitude 40.738 and longitude 13.949. Stay updated with localized weather information tailored for Ischia.

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