Climate guide for Kythnos, Greece

Kythnos in April

Weather, crowds & best time to visit

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April · Greece

Best time to visit Kythnos in April Weather, crowds & prices

Weather in Kythnos in April

Average temperature 17°C, 14 mm of rain, about 27 days with 6+ hours of sunshine and 75% humidity — based on the five most recent complete years of ERA5 data (2021–2025).

April score

7.1/10

Ranked #7 of 12 months

Full year for Kythnos
Avg temp
17°C
Rainfall
14 mm
Humidity
75%
Days with 6h+ sun
27
Crowd Density
Moderate Crowds
Average Expenses
$$ · Moderate Cost ($$)

April in Kythnos scores 7.1/10 for beach and coastal travel - ranked #7 of 12. Expect around 17°C, 14 mm of rain, and roughly 27 days with 6+ hours of sunshine this month.

Kythnos keeps dry stone walls, a divided hilltop capital and the sandy sandbar at Kolona in the western Cyclades.

April holds up well in Kythnos — 7th best month

Temperatures hover around 17°C (62°F) — the kind of month where neither heat nor cold forces the schedule.

At just 14 mm for the month, rain will not shape your plans; you get about 27 days with 6+ hours of sunshine and 13 hours of daylight.

That is 7.1/10 on the same scale — 7th of 12 months, versus 9.9/10 for the best month here.

Pack layers you can shed by midday plus one warm layer for the evening.

Expect mid-season pricing, and crowds are moderate.

If your dates are flexible, June is materially better in Kythnos — 2.8 points higher on the same scale.

View all 12 months

Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in Kythnos in April?
In April, Kythnos averages 17°C, 14 mm of rain, and about 27 days with 6+ hours of sunshine. Its climate-comfort score is 7.1/10.
Is April a good time to visit Kythnos?
April earns a 7.1/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
How much does it rain in Kythnos in April?
Expect about 14 mm of rain in April. Average humidity is 75% and there are about 27 days with 6+ hours of sunshine.

Curated in Kythnos

Tickets & experiences

Things to do in Kythnos

Kythnos, Greece. Live activities and tours from GetYourGuide, matched to this destination.