Ischia · AutumnMonth summary
Ischia weather in September
✅ Good
🌡️ Temperature min / max
18°C – 21°C
🌧 Rainy days
24% of days
☀️ Sunshine
11.0h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
8.1/10
📅 📅 Best month
July (9.2/10)
Quick decision
Should you visit Ischia in September?
✅ Good
✅ Yes if: you want good weather with lower prices than peak season.
❌ No if: you need guaranteed perfect weather — some mixed days are possible.
Our take: Favourable conditions in September (8.1/10). July scores higher but the gap is small.
By trip type
Ischia in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ⚠️ Possible
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in September
Autumn in Ischia is often underrated: 21°C, golden light and declining crowds. An interesting window. Rain risk remains low (24% of days), leaving good room for outdoor activities. A good balance between weather and crowds, even if July (9.2/10) remains theoretically better.
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All months for Ischia
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌦️ January | 5°C | 9°C | 39% | 103.0 | 6.9h | 6.0/10 |
| 🌦️ February | 6°C | 10°C | 35% | 91.1 | 9.2h | 6.7/10 |
| 🌦️ March | 6°C | 10°C | 35% | 69.9 | 9.5h | 6.7/10 |
| ⛅ April | 8°C | 12°C | 27% | 51.8 | 11.1h | 7.0/10 |
| ⛅ May | 12°C | 16°C | 24% | 50.4 | 11.9h | 7.3/10 |
| 🌤️ June | 17°C | 21°C | 10% | 19.0 | 13.4h | 8.5/10 |
| 🌤️ July | 20°C | 24°C | 7% | 7.5 | 13.4h | 9.2/10 |
| 🌤️ August | 20°C | 24°C | 9% | 14.7 | 12.3h | 9.1/10 |
| 🌤️ September | 18°C | 21°C | 24% | 63.0 | 11.0h | 8.1/10 |
| 🌤️ October | 14°C | 18°C | 29% | 89.6 | 8.9h | 7.5/10 |
| 🌦️ November | 10°C | 14°C | 47% | 167.2 | 7.4h | 6.9/10 |
| 🌫️ December | 7°C | 11°C | 30% | 93.6 | 6.8h | 7.0/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In September, Ischia averages 21°C, 24% rainy days and 11.0h of sunshine per day. Overall weather score: 8.1/10.
See methodology →
Comparison
September vs July (best month)
The best month is July (score 9.2/10). Difference:
- 🌡️ Max temperature : +3°C
- 🌧 Rainy days : -17%
- ☀️ Sunshine : +2.4h/day
FAQ
FAQ — Ischia in September
Is September a good time to visit Ischia?
September is an excellent time to visit Ischia (score 8.1/10). With 21°C, 11.0h of sunshine and 24% rain, conditions are very favourable.
What to do in Ischia in September?
With 21°C and 11.0h of sunshine, all outdoor activities are possible: hiking, sightseeing and terraces.
Accommodation
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