20-Year Climate Average
Santorini, South Aegean, Greece Weather in December
Normal High
61°F
Normal Low
55°F
Rainy Days
~13 of the month
Chance of Rain
41%
Humidity
69%
UV index
Not available
Daylight
9.7 hours
Peak wind
21 mph
Usually good for: running and hiking.
Based on December climate records from 2006–2025 (Open-Meteo Historical Weather Archive). These are planning averages, not a forecast. Data: Open-Meteo.com, CC BY 4.0.
Current conditions
Forecast versus the climate baseline
66°F
It currently feels like 63°F with 70% humidity, a 56°F dew point and 11 mph wind. Climate averages describe the month; this live reading is what matters for plans today.
73° / 66° · 0% rain
72° / 66° · 0% rain
73° / 65° · 0% rain
Best Months to Visit Santorini, South Aegean, Greece
Ranked by historical rainy-day frequency — the driest months over the past 20 years.
Methodology
Monthly values use the 2001–2020 observation period. Temperature, precipitation, humidity or dew point, wind, UV and daylight are shown only when the selected source provides them; unavailable fields are never estimated or silently replaced. These are planning normals, not guarantees for a specific trip.
What is the weather like in Santorini, South Aegean, Greece in December?
The 20-year average high in Santorini, South Aegean, Greece in December is 61°F, with a low around 55°F and about 13 rainy days.