Weather & climate · Ljubljana
Best Time to Visit Slovenia
June to August
The best time to visit Slovenia is June to August, when daytime highs in Ljubljana are around 23–26°C. July is the warmest month (26°C by day), January the coldest (-5°C at night), and September the wettest with about 118 mm of rain.
26°C
Warmest: July
-5°C
Coldest nights: January
1054 mm
Rain per year
118 mm
Wettest: September
Slovenia weather by month
- Jan2°C-5°C60 mm
- Feb4°C-4°C73 mm
- Mar9°C-1°C71 mm
- Apr14°C4°C73 mm
- May19°C8°C96 mm
- Jun23°C12°C88 mm
- Jul26°C14°C83 mm
- Aug25°C14°C94 mm
- Sep20°C9°C118 mm
- Oct14°C5°C104 mm
- Nov9°C1°C109 mm
- Dec3°C-3°C85 mm
Best time Good Less ideal
| Month | High | Low | Rain | Humidity | Cloud cover | Verdict |
|---|---|---|---|---|---|---|
| January | 2°C | -5°C | 60 mm | 91% | 72% | Cold |
| February | 4°C | -4°C | 73 mm | 88% | 72% | Cold |
| March | 9°C | -1°C | 71 mm | 83% | 66% | Fair |
| April | 14°C | 4°C | 73 mm | 78% | 65% | Fair |
| May | 19°C | 8°C | 96 mm | 77% | 69% | Fair |
| June | 23°C | 12°C | 88 mm | 75% | 64% | Best time |
| July | 26°C | 14°C | 83 mm | 71% | 59% | Best time |
| August | 25°C | 14°C | 94 mm | 70% | 56% | Best time |
| September | 20°C | 9°C | 118 mm | 77% | 63% | Fair |
| October | 14°C | 5°C | 104 mm | 85% | 66% | Fair |
| November | 9°C | 1°C | 109 mm | 90% | 74% | Fair |
| December | 3°C | -3°C | 85 mm | 91% | 73% | Cold |
Data: NASA POWER (Prediction Of Worldwide Energy Resources) — 25-year climate averages 2001–2025, public domain, for the area around Ljubljana (46.05, 14.52). Satellite and model averages — local weather stations can differ by 1–2 °C, and mountains or coasts elsewhere in Slovenia have their own climate.
Frequently asked questions
When is the best time to visit Slovenia?
June to August. The best time to visit Slovenia is June to August, when daytime highs in Ljubljana are around 23–26°C. July is the warmest month (26°C by day), January the coldest (-5°C at night), and September the wettest with about 118 mm of rain.
What is the hottest month in Slovenia?
July, with average highs of 26°C in Ljubljana.
What is the coldest month in Slovenia?
January, when nights drop to about -5°C and days reach 2°C.
What is the rainiest month in Slovenia?
September with about 118 mm; January is the driest (60 mm).
When should I avoid visiting Slovenia?
November is the least comfortable month on average: 9°C by day and 109 mm of rain.
Best time to visit other countries in Europe
-
Albania
June and September
-
Andorra
July to August
-
Armenia
May
-
Austria
June to August
-
Azerbaijan
June and September
-
Belarus
June to August
-
Belgium
June to August
-
Bosnia and Herzegovina
July to August
-
Bulgaria
June to September
-
Croatia
June to August
-
Cyprus
April to May and October
-
Czechia
June to August
-
Denmark
July to August
-
Estonia
July to August
-
Finland
July to August
-
France
July to August
-
Georgia
May and September
-
Germany
June to August
-
Greece
May
-
Hungary
May to September
-
Iceland
May to August
-
Ireland
June to September
-
Italy
May to June and September
-
Kosovo
June to September
-
Latvia
July to August
-
Liechtenstein
June to August
-
Lithuania
June to August
-
Luxembourg
July to August
-
Malta
June to September
-
Moldova
May to June and September
-
Monaco
July to August
-
Montenegro
July to August
-
Netherlands
June to August
-
North Macedonia
June and September
-
Norway
June to August
-
Poland
June to August
-
Portugal
June to September
-
Romania
May and September
-
Russia
July to August
-
San Marino
June and September
-
Serbia
September
-
Slovakia
June to September
-
Spain
May and September
-
Sweden
July to August
-
Switzerland
June to August
-
Ukraine
June to August
-
United Kingdom
July to August
-
Vatican City
May to June and September
Best time Good · bars run January → December