Monthly climate guide
Ischia weather in December
With highs near 16°C (60°F) and lows around 14°C (58°F), December feels mild in Ischia. Rainfall averages about 88 mm (some rain) and the sky is often cloudy. Daytime highs are 3°C cooler than November and 2°C warmer than January.
What stands out in December
- Just 30 km apart, but Ischia runs about 3°C warmer than Naples this month.
- In Ischia, December is early winter.
- There's little difference between day and night (around 2°C).
Avg high
16°C
60°F
Avg low
14°C
58°F
Rainfall
88 mm
some rain
Humidity
71%
relative
Sky
63%
cloud · often cloudy
Ischia weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 14°C / 57°F | 12°C / 54°F | 101 mm | 73% | 69% |
| February | 14°C / 56°F | 12°C / 53°F | 95 mm | 74% | 68% |
| March | 14°C / 58°F | 13°C / 55°F | 84 mm | 78% | 63% |
| April | 16°C / 61°F | 15°C / 59°F | 52 mm | 80% | 57% |
| May | 19°C / 66°F | 18°C / 64°F | 52 mm | 78% | 52% |
| June | 23°C / 73°F | 22°C / 72°F | 25 mm | 78% | 33% |
| July | 26°C / 78°F | 25°C / 77°F | 24 mm | 76% | 24% |
| August | 27°C / 80°F | 26°C / 78°F | 27 mm | 75% | 24% |
| September | 25°C / 76°F | 23°C / 74°F | 71 mm | 72% | 46% |
| October | 22°C / 71°F | 20°C / 69°F | 98 mm | 74% | 55% |
| November | 19°C / 65°F | 17°C / 63°F | 140 mm | 74% | 66% |
| December | 16°C / 60°F | 14°C / 58°F | 88 mm | 71% | 63% |
What to pack for December
- A warm sweater or fleece for layering
- A mid-weight jacket
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is December a good time to visit Ischia?
Compare the months in the chart above to find your ideal window.
Best time to visit Ischia →Other Italy cities in December
Cite or embed this data
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Ischia weather in December. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/italy/ischia/december
<a href="https://weathercompare.eu/weather/italy/ischia/december">Ischia weather in December</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/italy/ischia" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Ischia weather in December"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/italy/ischia/december">Ischia weather in December</a> – WeatherCompare</p>
Ischia in December: quick answers
Is December a good time to visit Ischia?
December is a reasonable time for Ischia: highs around 16°C and about 88 mm of rain, though not one of the three best months.
How warm is Ischia in December?
Average highs are about 16°C (60°F) and average lows about 14°C (58°F), based on 10 years of daily data.
Does it rain a lot in Ischia in December?
Ischia typically gets around 88 mm of rain in December — some rain.
Figures are long-term averages for the area around Ischia (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.