Month guide · Ljubljana · Slovenia
Ljubljana in September
What September is really like in Ljubljana: weather, crowds, prices, events and what to pack.
Updated By the AMZBooking editorial team
Photo: Sl-Ziga, CC BY-SA 3.0
Quick answer
September is one of the best months to visit Ljubljana. Expect average highs of 22°C (72°F), lows of 11°C (52°F), about 11 rainy days and roughly 12.5 hours of daylight. Warm days, cooler nights and fewer tour groups; a good month for hiking and the lakes.
Key facts
- Average high / low
- 22°C (72°F) / 11°C (52°F)
- Rainy days
- About 11
- Daylight
- About 12.5 hours
- Crowds
- Busy
- Hotel prices
- High
Weather in September
September is the 4th-warmest month in Ljubljana: days average 22°C (72°F) against a yearly average high of 16°C (61°F), and nights fall to about 11°C (52°F). Rain falls on roughly 11 of its 30 days. Compared with August (27°C (81°F)), September is cooler; by October highs drop to around 16°C (61°F).
- Sunrise (15 September)
- About 06:40
- Sunset (15 September)
- About 19:14
- Daylight
- About 12.5 hours
Autumn (September–November). Settled September weather and autumn colour in October, turning grey and wet by November, when prices fall.
Crowds and prices
On a 1–5 scale, September rates 4 for crowds (the peak is July at 5) and 4 for hotel prices (highest in July). Book accommodation early: September is one of the pricier months.
Events in September
September has no major recurring festival in Ljubljana, which usually means easier bookings.
What to do in September
With frequent rain, plan around indoor sights and keep outdoor time flexible.
Museum · Center
National Museum of Slovenia
Go straight to the archaeology rooms for the flute and the situla, then decide whether to see the rest.
- Time needed
- 1.5 hours
- Cost
- Low cost
- History
- Rainy day
- Kids
Museum · Trnovo and Krakovo
Plečnik House
Architect Jože Plečnik lived and worked in this house in Trnovo for decades, and his rooms, drawings, furniture and garden are preserved as he left them.
- Time needed
- 1 hour
- Cost
- Low cost
- Architecture
- History
- Off the beaten path
- Rainy day
Museum · Tabor and Metelkova
Slovene Ethnographic Museum
Look for the painted beehive front panels, a uniquely Slovenian folk art.
- Time needed
- 1.5 hours
- Cost
- Low cost
- History
- Rainy day
- Kids
Castle · Castle Hill
Ljubljana Castle
The castle crowns the wooded hill above the Old Town and is reached by a short funicular from Krekov trg or by footpaths from Študentovska street and Reber.
- Time needed
- 2–3 hours
- Cost
- Low cost
- Iconic
- Views
- History
- Kids
What to pack
For highs near 22°C, lows near 11°C and 11 wet days: light layers for the day and a light jacket for the evening; a packable rain jacket for showers; comfortable walking shoes.
Is September a good time to visit Ljubljana?
One of the best months to visit Ljubljana. The other best months are May–June. Compare every month.
Ljubljana in other months
Questions travellers ask
+Is September a good time to visit Ljubljana?
It is one of the best months to visit Ljubljana. Warm days, cooler nights and fewer tour groups; a good month for hiking and the lakes.
+How warm is Ljubljana in September?
Average highs are around 22°C (72°F) and lows around 11°C (52°F).
+Does it rain a lot in Ljubljana in September?
Expect rain on about 11 days of the month.