December · Greece
Best time to visit Kythnos in December Weather, crowds & prices
Weather in Kythnos in December
Average temperature 16°C, 75 mm of rain, about 0 days with 6+ hours of sunshine and 77% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
2.6/10
Ranked #11 of 12 months
- Avg temp
- 16°C
- Rainfall
- 75 mm
- Humidity
- 77%
- Days with 6h+ sun
- 0
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
December in Kythnos scores 2.6/10 for beach and coastal travel - ranked #11 of 12. Expect around 16°C, 75 mm of rain, and roughly 0 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.
December in Kythnos: expect compromises
December averages 16°C (61°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 75 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 2.6/10 here, 11th of 12 months, against 9.9/10 in the destination's best month.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Figure on low-season pricing, with crowds are light for this destination.
Flexible dates? June scores 7.3 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Kythnos in December?
- In December, Kythnos averages 16°C, 75 mm of rain, and about 0 days with 6+ hours of sunshine. Its climate-comfort score is 2.6/10.
- Is December a good time to visit Kythnos?
- December earns a 2.6/10 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 December?
- Expect about 75 mm of rain in December. Average humidity is 77% and there are about 0 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.