Athens vs Santorini in December — Which to Pick?
The numbers, side by side
Every figure below is an average across 11 complete years (2015–2025) of daily Open-Meteo records. Not a forecast — a historical baseline you can plan against.
Athens vs Santorini in December
| Metric | Athens | Santorini | Verdict |
|---|---|---|---|
| Average high | 14 °C (58°F) | 16 °C (61°F)Winner | Santorini is 2.1 °C warmer. |
| Average low | 8 °C (46°F) | 13 °C (55°F)Winner | Nights differ by ~6°C. |
| Rainfall | 87 mm | 49 mmWinner | Santorini is 38 mm drier. |
| Rainy days | 8 | 9 | Effectively even in rainy days. |
| Sunshine | 7.3 h/day | 8.1 h/day | Effectively even in sunshine. |
Our honest take
In December, Santorini runs about 2°C warmer on average — a meaningful gap when you're deciding what to pack.
Santorini sees roughly 38mm less rainfall this month, so your afternoons are more likely to survive intact.
Neither is objectively better: pick Athens for what Athens is famous for; pick Santorini for what Santorini does uniquely. The persona cards below break the choice down by traveller type.
Traveller verdict for December
Data-driven picks based on 11-year climate averages (2015–2025). Neither destination is objectively “better” — it depends on what you're after.
Santorini takes the beach-day advantage — warmer sea air, drier skies, and more useful sun.
Santorini leans into the after-dark scene — warm evenings and the higher-energy crowd.
Santorini suits families better this month — gentler temperatures and fewer washouts.
Santorini gets the photographer's nod — clearer skies and softer light per day.
Athens is the smarter pick for value — quieter crowds and softer accommodation rates.
Santorini has the edge for wandering food streets — walkable weather and a livelier scene.
Compare hotels in both
Booking.com deep links with December check-in dates pre-filled.
Athens vs Santorini in December — FAQ
Q01Is Athens warmer than Santorini in December?
Is Athens warmer than Santorini in December?
Yes — Santorini runs about 2°C warmer than Athens in December. Athens averages 14°C highs; Santorini averages 16°C. Based on 11-year climate averages (2015–2025).
Q02Which is drier — Athens or Santorini in December?
Which is drier — Athens or Santorini in December?
Santorini is drier in December. It averages 49mm of rainfall vs 87mm at Athens. That is a meaningful difference for outdoor plans.
Q03Which is better for outdoor activities in December?
Which is better for outdoor activities in December?
Neither destination pulls ahead on sunshine or dry days in December — both offer similar outdoor windows. Choose by terrain and interest rather than weather.
Q04Which is cheaper to visit in December — Athens or Santorini?
Which is cheaper to visit in December — Athens or Santorini?
Athens tends to offer better value in December — lower crowd density and softer accommodation rates. Prices track tourism demand: quieter months means better deals in either destination.
Q05Which is better for a beach trip in December?
Which is better for a beach trip in December?
Santorini is the stronger pick for beach days in December — warmer daytime highs, drier weather, and more useful sun per day.