What to expect in Santorini in December
December is usually the wrong time for Santorini: 15° / 10°. Consider October · May instead.
Santorini weather in December
Typical conditions in Santorini during December, based on long-run climate normals rather than any single year. Treat it as a planning guide, not a forecast.
| Average high | 15°C 59°F |
|---|---|
| Average low | 10°C 50°F |
| Rainfall | Moderate 35/100 |
| Sea temperature | 18°C 64°F |
| Daylight | 9 h 42 min |
| How it feels | Mild — layers weather |
Average highs sit around 15°C with lows near 10°C. Rainfall is moderate; the odd shower is likely.
Crowds & demand
Crowd levels are Low for Santorini — plenty of space at the main sights.
Prices & value
This month counts as low season: some of the best deals of the year.
What to pack
Layers you can shed: 15°C by day and about 10°C after dark is a two-jacket kind of month.
What it costs
This is one of the cheaper months to visit Santorini. Flights and accommodation sit near their yearly floor, and you can usually book late without being punished for it. Compared with the most expensive month of the year, you are looking at roughly 85% less.
Who this month suits
- Anyone travelling on a budget
- People who would rather have space than perfect conditions
Events & what’s on
No major festivals fall in December, so the destination feels like its everyday self.
Santorini in December compared with nearby months
If your dates are flexible by a few weeks, this is what shifting them actually buys you.
| Month | Temp | Crowds | Price | Score |
|---|---|---|---|---|
| October | 23° / 16° | Moderate | $ | 73 |
| November | 19° / 13° | Low | $ | 78 |
| December · This month | 15° / 10° | Low | $ | 77 |
| January | 14° / 9° | Low | $ | 76 |
| February | 14° / 9° | Low | $ | 76 |
These months score higher for Santorini on the same blend of weather, crowds and price. Same destination, better odds.
Or go somewhere else in December
If the destination is negotiable but the month is not, these places are at their best in December.
Figures are climate normals and modelled estimates — a planning guide, not a forecast. We separate fact, estimate and recommendation. Updated October 2026
