December · Greece
Best time to visit Alonnisos in December Weather, crowds & prices
Weather in Alonnisos in December
Average temperature 12°C, 106 mm of rain, about 22 days with 6+ hours of sunshine and 77% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
4.7/10
Ranked #12 of 12 months
- Avg temp
- 12°C
- Rainfall
- 106 mm
- Humidity
- 77%
- Days with 6h+ sun
- 22
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
December in Alonnisos scores 4.7/10 for beach and coastal travel - ranked #12 of 12. Expect around 12°C, 106 mm of rain, and roughly 22 days with 6+ hours of sunshine this month.
Alonnisos is a Sporades island with a hilltop old village, pine-covered coast and a marine park for monk seals.
December in Alonnisos — the hardest end of the year
December averages 12°C (53°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Monthly rainfall reaches 106 mm — wet for this destination — but about 22 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 4.7/10 here, 12th of 12 months, against 10/10 in the destination's best month.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.
Figure on low-season pricing, with crowds are light for this destination.
Flexible dates? June scores 5.3 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Alonnisos in December?
- In December, Alonnisos averages 12°C, 106 mm of rain, and about 22 days with 6+ hours of sunshine. Its climate-comfort score is 4.7/10.
- Is December a good time to visit Alonnisos?
- December earns a 4.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Alonnisos in December?
- Expect about 106 mm of rain in December. Average humidity is 77% and there are about 22 days with 6+ hours of sunshine.
Curated in Alonnisos
Tickets & experiences
Things to do in Alonnisos
Alonnisos, Greece. Live activities and tours from GetYourGuide, matched to this destination.