Koper-Capodistria (Koper)
December
Weather in Koper-Capodistria for December 2025
Your guide to Koper-Capodistria weather in December - trends and predictions
In general, the average temperature in Koper-Capodistria at the beginning of December is 8.7 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 10.7 °C by the end of December.
Koper-Capodistria experiences moderate rainfall in December, with an average of 6 rainy days and a total precipitation of 32.3 mm.
Temperatures
Rain 🌧️
25
Dry days
6
Rainy days
0
Snow days
10°/3°
Temperatures
11 km/h
Avg max wind
79 %
Avg humidity
Koper-Capodistria in December average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  10° | 2  11° | 3  9° | 4  8° | 5 8° | 6  7° | 7 8° |
| 8  8° | 9 8° | 10 9° | 11 9° | 12 9° | 13 10° | 14 8° |
| 15 10° | 16 9° | 17 10° | 18 11° | 19 11° | 20 10° | 21 9° |
| 22 8° | 23 8° | 24 9° | 25 10° | 26 10° | 27 11° | 28 11° |
| 29 11° | 30 11° | 31 11° |
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Temperatures trend during December in Koper-Capodistria
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. | Sunny | 10° /3° | 0 mm | 4 | |
| 2 Dec. | Partly cloudy | 11° /1° | 0 mm | 4 | |
| 3 Dec. | Overcast | 9° /1° | 0 mm | 2 | |
| 4 Dec. | Cloudy | 8° /2° | 0 mm | 2 | |
| 5 Dec. | Sunny | 8° /2° | 0 mm | 3 | |
| 6 Dec. | Patchy rain possible | 7° /0° | 0 mm | 2 | |
| 7 Dec. | Cloudy | 8° /0° | 0 mm | 2 | |
| 8 Dec. | Patchy light rain | 8° /3° | 2.4 mm | 2 | |
| 9 Dec. | Overcast | 8° /2° | 0.1 mm | 2 | |
| 10 Dec. | Light drizzle | 9° /1° | 1 mm | 2 | |
| 11 Dec. | Patchy rain possible | 9° /1° | 0.1 mm | 3 | |
| 12 Dec. | Patchy rain possible | 9° /2° | 0.1 mm | 3 | |
| 13 Dec. | Light rain shower | 10° /2° | 10.7 mm | 3 | |
| 14 Dec. | Light drizzle | 8° /3° | 1.2 mm | 2 | |
| 15 Dec. | Sunny | 10° /1° | 0 mm | 4 | |
| 16 Dec. | Sunny | 9° /0° | 0 mm | 3 | |
| 17 Dec. | Overcast | 10° /1° | 0 mm | 4 | |
| 18 Dec. | Sunny | 11° /2° | 0 mm | 3 | |
| 19 Dec. | Sunny | 11° /3° | 4.5 mm | 3 | |
| 20 Dec. | Overcast | 10° /2° | 9.9 mm | 3 | |
| 21 Dec. | Patchy rain possible | 9° /1° | 0 mm | 3 | |
| 22 Dec. | Partly cloudy | 8° /0° | 5.2 mm | 3 | |
| 23 Dec. | Partly cloudy | 8° /1° | 4.2 mm | 3 | |
| 24 Dec. | Sunny | 9° /2° | 0 mm | 3 | |
| 25 Dec. | Cloudy | 10° /2° | 0 mm | 3 | |
| 26 Dec. | Patchy rain possible | 10° /2° | 0.1 mm | 3 | |
| 27 Dec. | Patchy rain possible | 11° /2° | 0 mm | 4 | |
| 28 Dec. | Patchy rain possible | 11° /3° | 0.4 mm | 4 | |
| 29 Dec. | Patchy rain possible | 11° /4° | 0.5 mm | 4 | |
| 30 Dec. | Patchy rain possible | 11° /4° | 0.1 mm | 4 | |
| 31 Dec. | Light rain shower | 11° /4° | 2 mm | 4 | |
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Important Notice
Our weather forecast for Koper-Capodistria 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 Koper-Capodistria forecast closer to your planned date for the most up-to-date weather information.
Koper-Capodistria in December - FAQ
What are the expected maximum and minimum temperatures in Koper-Capodistria during December?
Prepare for cooler days with highs just around 10° and colder nights, dipping below 3°.
How much rainfall should be expected in Koper-Capodistria during December?
In December, Koper-Capodistria can expect light to moderate rainfall, totaling 32.3 mm across approximately 6 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Koper-Capodistria during December?
The average wind speed in Koper-Capodistria during December is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Koper-Capodistria
Explore the daily rainfall trends and prepare for Koper-Capodistrias December weather 💧
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