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Koper-Capodistria (Koper)
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Weather in Koper-Capodistria for December 2026

Your guide to Koper-Capodistria weather in December - trends and predictions

    Temperatures

  • In general, the average temperature in Koper-Capodistria at the beginning of December is 9.5 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 9.5 °C by the end of December.

    • Rain 🌧️

  • Koper-Capodistria experiences moderate rainfall in December, with an average of 6 rainy days and a total precipitation of 39.8 mm.

    • More

  • Is December a good time to visit Koper-Capodistria? check out the best time to travel to Koper-Capodistria page.

Average dry days
25
Dry days
Average rainy days
6
Rainy days
Average snowy days
0
Snow days
Average temperatures
10°/3°
Temperatures
Average wind speed
11 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Koper-Capodistria Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
10°
2
Partly cloudy
12°
3
Overcast
9°
4
Cloudy
9°
5
Light rain
9°
6
Patchy rain possible
9°
7
Cloudy
10°
8
Patchy light rain
10°
9
Overcast
9°
10
Light drizzle
10°
11
Patchy rain possible
10°
12
Patchy rain possible
10°
13
Light rain
11°
14
Light drizzle
9°
15
Sunny
10°
16
Sunny
10°
17
Light rain
10°
18
Sunny
11°
19
Light rain
11°
20
Light rain
11°
21
Sunny
10°
22
Light rain
9°
23
Light rain
9°
24
Sunny
8°
25
Cloudy
8°
26
Sunny
9°
27
Sunny
11°
28
Sunny
10°
29
Sunny
10°
30
Patchy rain possible
10°
31
Patchy rain possible
8°

Temperatures trend during December in Koper-Capodistria

See the weather trend as well as the moving average line

December weather in Koper-Capodistria day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
1 Dec. Sunny
Sunny
 10° /3° 0.1 mm 1.2
2 Dec. Partly cloudy
Partly cloudy
 12° /4° 0.3 mm 1.2
3 Dec. Overcast
Overcast
 9° /5° 0.9 mm 1.2
4 Dec. Cloudy
Cloudy
 9° /5° 0.2 mm 1.2
5 Dec. Light rain
Light rain
 9° /3° 5.1 mm 1.1
6 Dec. Patchy rain possible
Patchy rain possible
 9° /2° 0 mm 1.1
7 Dec. Cloudy
Cloudy
 10° /4° 0 mm 1.1
8 Dec. Patchy light rain
Patchy light rain
 10° /4° 1.2 mm 1.1
9 Dec. Overcast
Overcast
 9° /3° 0.1 mm 1.1
10 Dec. Light drizzle
Light drizzle
 10° /2° 0.7 mm 1.1
11 Dec. Patchy rain possible
Patchy rain possible
 10° /2° 0 mm 1.1
12 Dec. Patchy rain possible
Patchy rain possible
 10° /3° 0.1 mm 1.1
13 Dec. Light rain
Light rain
 11° /3° 7.1 mm 1.1
14 Dec. Light drizzle
Light drizzle
 9° /3° 0.8 mm 1.1
15 Dec. Sunny
Sunny
 10° /1° 0 mm 1.1
16 Dec. Sunny
Sunny
 10° /2° 0 mm 1.1
17 Dec. Light rain
Light rain
 10° /3° 2.9 mm 1.1
18 Dec. Sunny
Sunny
 11° /4° 0 mm 1
19 Dec. Light rain
Light rain
 11° /5° 3.1 mm 1
20 Dec. Light rain
Light rain
 11° /3° 6.6 mm 1
21 Dec. Sunny
Sunny
 10° /2° 0 mm 1
22 Dec. Light rain
Light rain
 9° /1° 3.7 mm 1
23 Dec. Light rain
Light rain
 9° /3° 4.1 mm 1
24 Dec. Sunny
Sunny
 8° /2° 0.9 mm 1
25 Dec. Cloudy
Cloudy
 8° /1° 0 mm 1.1
26 Dec. Sunny
Sunny
 9° /2° 0 mm 1.1
27 Dec. Sunny
Sunny
 11° /1° 0 mm 1.1
28 Dec. Sunny
Sunny
 10° /3° 0.2 mm 1.1
29 Dec. Sunny
Sunny
 10° /3° 0.3 mm 1.1
30 Dec. Patchy rain possible
Patchy rain possible
 10° /3° 0.1 mm 1.1
31 Dec. Patchy rain possible
Patchy rain possible
 8° /2° 1.3 mm 1.1
Next
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.
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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 39.8 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 💧
Typically, Koper-Capodistria has 6 rainy days in December with a total of 39.8 mm of rainfall.
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