January in Ischia — the hardest end of the year
Hardest · 2.5/10January averages 14°C (57°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 61 mm, so plan one flexible day in three; you still get almost no days with 6+ hours of sunshine and 9.4 hours of daylight.
It scores 2.5/10 here, 12th of 12 months, against 9.8/10 in the destination's best month.
Plan for low-season pricing, with crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Flexible dates? July scores 7.3 points higher here — enough to change the trip.
February in Ischia: expect compromises
Hardest · 3.7/10February averages 14°C (56°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Expect 44 mm of rain — occasional showers rather than washed-out days — alongside about 6 days with 6+ hours of sunshine and 10.4 daylight hours.
It scores 3.7/10 here, 9th of 12 months, against 9.8/10 in the destination's best month.
Plan for low-season pricing, with crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening.
Flexible dates? July scores 6.1 points higher here — enough to change the trip.
March in Ischia: mixed conditions, plan around the weather
Trade-offs · 5/10Temperatures hover around 14°C (57°F) — the kind of month where neither heat nor cold forces the schedule.
With around 43 mm of rain, any showers tend to pass through rather than settle in; about 15 days with 6+ hours of sunshine and 11.7 hours of daylight fill the rest.
That is 5/10 on the same scale — 8th of 12 months, versus 9.8/10 for the best month here.
Budget for mid-season pricing, and crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening.
If your dates are flexible, July is materially better in Ischia — 4.8 points higher on the same scale.
April in Ischia — workable with trade-offs
Trade-offs · 6.5/10April averages 15°C (60°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Expect 21 mm of rain — occasional showers rather than washed-out days — alongside about 25 days with 6+ hours of sunshine and 13.1 daylight hours.
It scores 6.5/10 here, 7th of 12 months, against 9.8/10 in the destination's best month.
Figure on mid-season pricing, with crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening.
Flexible dates? July scores 3.3 points higher here — enough to change the trip.
May holds up well in Ischia — 5th best month
Good · 7.5/10With 19°C (66°F) on average, May delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
Budget for roughly 52 mm of rain this month — a flexible day or two helps — with about 30 days with 6+ hours of sunshine and 14.3 hours of daylight to work around it.
That is 7.5/10 on the same scale — 5th of 12 months, versus 9.8/10 for the best month here.
Expect mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection, a packable rain layer.
If your dates are flexible, July is materially better in Ischia — 2.3 points higher on the same scale.
June in Ischia — one of the year's strongest windows (3rd)
Best window · 9.7/10June averages 24°C (74°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Expect 32 mm of rain — occasional showers rather than washed-out days — alongside about 30 days with 6+ hours of sunshine and 14.9 daylight hours.
A 9.7/10 puts this among the year's best months in Ischia (3rd of 12); only July scores higher, at 9.8/10.
Figure on peak pricing, with crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, swimwear and real sun protection.
July: the best month of the year in Ischia
Best window · 9.8/10July averages 27°C (80°F) and humidity near 76%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rain is a non-issue at 9 mm for the month, with about 31 days with 6+ hours of sunshine and 14.6 hours of daylight to work with.
On our climate-comfort scale this is the top-ranked month of the year for Ischia at 9.8/10 — the reference point every other month on this page is measured against.
Plan for peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
August is one of the strongest months in Ischia (2nd)
Best window · 9.8/10Days in August average 27°C (81°F) and humidity near 73% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
With around 34 mm of rain, any showers tend to pass through rather than settle in; about 31 days with 6+ hours of sunshine and 13.6 hours of daylight fill the rest.
On our climate-comfort scale this is one of the strongest months of the year for Ischia at 9.8/10 (2nd of 12), just behind July at 9.8/10.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
September ranks 4th of 12 for Ischia — one of the best windows
Best window · 8.7/10With 25°C (76°F) on average, September delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
Budget for roughly 69 mm of rain this month — a flexible day or two helps — with about 19 days with 6+ hours of sunshine and 12.3 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Ischia at 8.7/10 (4th of 12), just behind July at 9.8/10.
Budget for mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection, a packable rain layer.
October in Ischia — reliably good (6th best month)
Good · 7.1/10October averages 22°C (72°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rainfall runs 63 mm, so plan one flexible day in three; you still get about 10 days with 6+ hours of sunshine and 10.9 hours of daylight.
It scores 7.1/10 here, 6th of 12 months, against 9.8/10 in the destination's best month.
Figure on mid-season pricing, with crowds are moderate.
Pack light clothing, swimwear and real sun protection, a packable rain layer.
Flexible dates? July scores 2.7 points higher here — enough to change the trip.
November in Ischia: expect compromises
Hardest · 3.4/10November averages 19°C (66°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 116 mm this is a genuinely wet month: about 1 days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 3.4/10 here, 10th of 12 months, against 9.8/10 in the destination's best month.
Plan for low-season pricing, with crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
Flexible dates? July scores 6.4 points higher here — enough to change the trip.
December in Ischia: expect compromises
Hardest · 3.3/10Temperatures 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.
Budget for mid-season pricing, and crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening.
If your dates are flexible, July is materially better in Ischia — 6.5 points higher on the same scale.
