December · Italy
Best time to visit Ischia in December Weather, crowds & prices
Weather in Ischia in December
Average temperature 16°C, 40 mm of rain, about 0 days with 6+ hours of sunshine and 73% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
3.3/10
Ranked #11 of 12 months
- Avg temp
- 16°C
- Rainfall
- 40 mm
- Humidity
- 73%
- Days with 6h+ sun
- 0
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $$ · Moderate Cost ($$)
December in Ischia scores 3.3/10 for beach and coastal travel - ranked #11 of 12. Expect around 16°C, 40 mm of rain, and roughly 0 days with 6+ hours of sunshine this month.
Thermal spas, volcanic beaches, and Aragonese Castle views suit May through October best, with June and September ideal for swimming and spa days without Naples Bay August crowds.
December in Ischia: expect compromises
Temperatures hover around 16°C (60°F) — the kind of month where neither heat nor cold forces the schedule.
With around 40 mm of rain, any showers tend to pass through rather than settle in; almost no days with 6+ hours of sunshine and 9.1 hours of daylight fill the rest.
That is 3.3/10 on the same scale — 11th of 12 months, versus 9.8/10 for the best month here.
Pack layers you can shed by midday plus one warm layer for the evening.
Budget for mid-season pricing, and crowds are light for this destination.
If your dates are flexible, July is materially better in Ischia — 6.5 points higher on the same scale.
Frequently asked
- What is the weather like in Ischia in December?
- In December, Ischia averages 16°C, 40 mm of rain, and about 0 days with 6+ hours of sunshine. Its climate-comfort score is 3.3/10.
- Is December a good time to visit Ischia?
- December earns a 3.3/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Ischia in December?
- Expect about 40 mm of rain in December. Average humidity is 73% and there are about 0 days with 6+ hours of sunshine.
Curated in Ischia
Tickets & experiences
Things to do in Ischia
Ischia, Italy. Live activities and tours from GetYourGuide, matched to this destination.