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Weather in Portorož for December 2025

Your guide to Portorož weather in December - trends and predictions

    Temperatures

  • So far, December 2025 in Portorož is slightly warmer than the historical average by 1.4 °C.

  • The forecast for the upcoming days in Portorož predicts a temperature of 10.9 °C, which is slightly above the historical average.

  • In general, the average temperature in Portorož at the beginning of December is 9.7 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 9.9 °C by the end of December.

    • Rain 🌧️

  • Portorož experiences moderate rainfall in December, with an average of 9 rainy days and a total precipitation of 42.4 mm.

Average dry days
22
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
9°/2°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Portorož Weather December

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

Temperatures trend during December in Portorož

See the weather trend as well as the moving average line

December weather in Portorož 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 3
2 Dec. Partly cloudy
Partly cloudy
 12° /3° 0.3 mm 4
3 Dec. Overcast
Overcast
 9° /5° 0.9 mm 2
4 Dec. Cloudy
Cloudy
 9° /4° 0.2 mm 3
5 Dec. Sunny
Sunny
 9° /3° 5.1 mm 3
6 Dec. Patchy rain possible
Patchy rain possible
 9° /1° 0 mm 3
7 Dec. Cloudy
Cloudy
 10° /3° 0 mm 3
8 Dec. Patchy light rain
Patchy light rain
 10° /4° 1.2 mm 3
9 Dec. Overcast
Overcast
 10° /3° 0.1 mm 3
10 Dec. Light drizzle
Light drizzle
 10° /2° 0.7 mm 2
11 Dec. Patchy rain possible
Patchy rain possible
 10° /2° 0 mm 3
12 Dec. Patchy rain possible
Patchy rain possible
 10° /2° 0.1 mm 3
13 Dec. Light rain shower
Light rain shower
 11° /3° 7.1 mm 3
14 Dec. Light drizzle
Light drizzle
 9° /3° 0.8 mm 3
15 Dec. Sunny
Sunny
 10° /1° 0 mm 4
16 Dec. Patchy rain possible
Patchy rain possible
 12° /5° 0.3 mm 0.1
17 Dec. Moderate rain
Moderate rain
 11° /7° 8.6 mm 0
18 Dec. Patchy rain possible
Patchy rain possible
 12° /8° 0.4 mm 0.1
19 Dec. Overcast
Overcast
 12° /7° 0.1 mm 0.1
20 Dec. Partly cloudy
Partly cloudy
 12° /6° 0 mm 0.1
21 Dec. Patchy rain possible
Patchy rain possible
 11° /6° 0.4 mm 2
22 Dec. Patchy rain possible
Patchy rain possible
 14° /8° 0.2 mm 3
23 Dec. Patchy rain possible
Patchy rain possible
 12° /7° 2.2 mm 2
24 Dec. Patchy rain possible
Patchy rain possible
 10° /7° 1.1 mm 2
25 Dec. Patchy rain possible
Patchy rain possible
 12° /6° 0.8 mm 2
26 Dec. Partly cloudy
Partly cloudy
 10° /4° 0 mm 3
27 Dec. Patchy rain possible
Patchy rain possible
 6° /2° 0.1 mm 1
28 Dec. Partly cloudy
Partly cloudy
 9° /3° 0 mm 3
29 Dec. Cloudy
Cloudy
 10° /4° 0 mm 2
30 Dec. Patchy rain possible
Patchy rain possible
 11° /4° 0.1 mm 4
31 Dec. Light rain shower
Light rain shower
 11° /4° 2 mm 4
Next
Important Notice
Our weather forecast for Portorož 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 Portorož forecast closer to your planned date for the most up-to-date weather information.
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Portorož in December - FAQ

What are the expected maximum and minimum temperatures in Portorož during December?
Prepare for cooler days with highs just around 9° and colder nights, dipping below 2°.
How much rainfall should be expected in Portorož during December?
In December, Portorož can expect light to moderate rainfall, totaling 42.4 mm across approximately 9 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in Portorož in December 2025?
Portorož typically sees 0 cm of snowfall during December.
What are the typical wind conditions in Portorož during December?
The average wind speed in Portorož during December is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Portorož

Explore the daily rainfall trends and prepare for Portorožs December weather 💧
Typically, Portorož has 9 rainy days in December with a total of 42.4 mm of rainfall.

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Location coordinates Where is Portorož?

Get accurate weather forecasts for Portorož, located at latitude 45.514 and longitude 13.592. Stay updated with localized weather information tailored for Portorož.

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