Sými
December
Weather in Sými for December 2025
Your guide to Sými weather in December - trends and predictions
In general, the average temperature in Sými at the beginning of December is 17.1 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 14.9 °C by the end of December.
Sými experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 169.3 mm.
Is December a good time to visit Sými? check out the best time to travel to Sými page.
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Temperatures
Rain 🌧️
More
10
Dry days
21
Rainy days
0
Snow days
16°/14°
Temperatures
23 km/h
Avg max wind
70 %
Avg humidity
Sými Weather December
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  18° | 2 18° | 3 17° | 4 17° | 5  17° | 6 16° | 7 17° |
| 8 17° | 9 16° | 10 17° | 11 16° | 12 16° | 13  15° | 14 17° |
| 15 18° | 16 17° | 17  15° | 18  16° | 19 16° | 20 16° | 21  17° |
| 22 16° | 23 16° | 24 16° | 25 15° | 26 15° | 27 16° | 28 15° |
| 29 14° | 30 14° | 31 15° |
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Temperatures trend during December in Sými
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. | Patchy rain possible | 18° /16° | 7.1 mm | 4 | |
| 2 Dec. | Patchy rain possible | 18° /15° | 5.2 mm | 4 | |
| 3 Dec. | Patchy rain possible | 17° /14° | 5.2 mm | 4 | |
| 4 Dec. | Patchy rain possible | 17° /15° | 0.7 mm | 4 | |
| 5 Dec. | Moderate rain at times | 17° /14° | 3.4 mm | 4 | |
| 6 Dec. | Light rain shower | 16° /14° | 17.4 mm | 4 | |
| 7 Dec. | Light rain shower | 17° /14° | 12.1 mm | 4 | |
| 8 Dec. | Light rain shower | 17° /13° | 12.5 mm | 4 | |
| 9 Dec. | Patchy rain possible | 16° /15° | 4.7 mm | 4 | |
| 10 Dec. | Patchy rain possible | 17° /14° | 1.7 mm | 4 | |
| 11 Dec. | Light rain shower | 16° /14° | 18.4 mm | 4 | |
| 12 Dec. | Light rain shower | 16° /14° | 4.5 mm | 4 | |
| 13 Dec. | Partly cloudy | 15° /14° | 0 mm | 5 | |
| 14 Dec. | Patchy rain possible | 17° /14° | 0.1 mm | 4 | |
| 15 Dec. | Patchy rain possible | 18° /14° | 6.1 mm | 4 | |
| 16 Dec. | Patchy rain possible | 17° /15° | 4.1 mm | 4 | |
| 17 Dec. | Overcast | 15° /14° | 0.1 mm | 4 | |
| 18 Dec. | Sunny | 16° /14° | 0 mm | 5 | |
| 19 Dec. | Sunny | 16° /14° | 0 mm | 5 | |
| 20 Dec. | Patchy rain possible | 16° /14° | 0.8 mm | 4 | |
| 21 Dec. | Moderate or heavy rain with thunder | 17° /14° | 16.3 mm | 4 | |
| 22 Dec. | Light rain shower | 16° /13° | 5.5 mm | 4 | |
| 23 Dec. | Sunny | 16° /14° | 2.5 mm | 5 | |
| 24 Dec. | Patchy rain possible | 16° /13° | 13.1 mm | 4 | |
| 25 Dec. | Sunny | 15° /13° | 12.2 mm | 4 | |
| 26 Dec. | Patchy rain possible | 15° /13° | 6.9 mm | 4 | |
| 27 Dec. | Patchy rain possible | 16° /13° | 3.3 mm | 4 | |
| 28 Dec. | Sunny | 15° /12° | 0.8 mm | 4 | |
| 29 Dec. | Sunny | 14° /11° | 3.3 mm | 4 | |
| 30 Dec. | Patchy rain possible | 14° /12° | 0.6 mm | 4 | |
| 31 Dec. | Patchy rain possible | 15° /13° | 0.9 mm | 4 | |
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Important Notice
Our weather forecast for Sými in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Sými forecast closer to your planned date for the most up-to-date weather information.
Sými in December - FAQ
What are the expected maximum and minimum temperatures in Sými during December?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Sými during December?
Significant rainfall exceeding 169.3 mm is expected in Sými during December, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Sými during December?
The average wind speed in Sými during December is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Sými in December?
As you prepare for your trip to Sými 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 Sými, during December, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
December rainfall patterns in Sými
Explore the daily rainfall trends and prepare for Sýmis December weather 💧
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