Weather in Santorini Island for December 2025
In general, the average temperature in Santorini Island at the beginning of December is 17.7 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 16.4 °C by the end of December.
Santorini Island in December brings notable rainfall, with an average of 19 rainy days and a total precipitation of 55.4 mm.
Is December a good time to visit Santorini Island? check out the best time to travel to Santorini Island page.
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Santorini Island in December average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  18° | 2  18° | 3  18° | 4  17° | 5 17° | 6 18° | 7 18° |
| 8 17° | 9 17° | 10 18° | 11 18° | 12 17° | 13 17° | 14 17° |
| 15 18° | 16  17° | 17  15° | 18 16° | 19 15° | 20 15° | 21 15° |
| 22 15° | 23 15° | 24 16° | 25 17° | 26 17° | 27 17° | 28 16° |
| 29 16° | 30 16° | 31 16° |
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Temperatures trend during December in Santorini Island
December weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. | Cloudy | 18° /15° | 4.6 mm | 4 | |
| 2 Dec. | Patchy rain possible | 18° /16° | 2.1 mm | 4 | |
| 3 Dec. | Overcast | 18° /16° | 0.8 mm | 4 | |
| 4 Dec. | Moderate rain at times | 17° /15° | 3.3 mm | 4 | |
| 5 Dec. | Patchy rain possible | 17° /15° | 1 mm | 4 | |
| 6 Dec. | Cloudy | 18° /16° | 3.5 mm | 4 | |
| 7 Dec. | Light rain shower | 18° /14° | 4.3 mm | 4 | |
| 8 Dec. | Moderate or heavy rain shower | 17° /15° | 5 mm | 4 | |
| 9 Dec. | Cloudy | 17° /16° | 0.5 mm | 4 | |
| 10 Dec. | Moderate rain at times | 18° /16° | 1.2 mm | 4 | |
| 11 Dec. | Patchy rain possible | 18° /15° | 1.9 mm | 4 | |
| 12 Dec. | Moderate rain at times | 17° /15° | 1.5 mm | 4 | |
| 13 Dec. | Patchy rain possible | 17° /14° | 2.7 mm | 4 | |
| 14 Dec. | Patchy rain possible | 17° /14° | 3.2 mm | 4 | |
| 15 Dec. | Patchy rain possible | 18° /15° | 1.9 mm | 4 | |
| 16 Dec. | Partly cloudy | 17° /14° | 1.1 mm | 4 | |
| 17 Dec. | Sunny | 15° /14° | 0.4 mm | 4 | |
| 18 Dec. | Sunny | 16° /13° | 3.1 mm | 4 | |
| 19 Dec. | Partly cloudy | 15° /13° | 1.5 mm | 4 | |
| 20 Dec. | Overcast | 15° /13° | 0.4 mm | 4 | |
| 21 Dec. | Overcast | 15° /13° | 3.5 mm | 3 | |
| 22 Dec. | Overcast | 15° /13° | 0.8 mm | 3 | |
| 23 Dec. | Partly cloudy | 15° /13° | 0.5 mm | 4 | |
| 24 Dec. | Sunny | 16° /12° | 4.9 mm | 4 | |
| 25 Dec. | Cloudy | 17° /14° | 1.1 mm | 4 | |
| 26 Dec. | Sunny | 17° /14° | 1.9 mm | 4 | |
| 27 Dec. | Patchy rain possible | 17° /14° | 1.2 mm | 4 | |
| 28 Dec. | Partly cloudy | 16° /13° | 1.5 mm | 4 | |
| 29 Dec. | Partly cloudy | 16° /13° | 2.8 mm | 4 | |
| 30 Dec. | Patchy rain possible | 16° /13° | 2.6 mm | 4 | |
| 31 Dec. | Sunny | 16° /14° | 1.3 mm | 4 | |
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Santorini Island in December - FAQ
What to pack to Santorini Island in December?
As you prepare for your trip to Santorini Island in December, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Santorini Island, during December, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Umbrellas/Raincoats: For rainy days
December rainfall patterns in Santorini Island
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Where is Santorini Island?Get accurate weather forecasts for Santorini Island, located at latitude 36.406 and longitude 25.457. Stay updated with localized weather information tailored for Santorini Island.