Ljubljana · AutumnMonth summary
Ljubljana weather in September
✅ Good
🌡️ Temperature min / max
54°F – 72°F
🌧 Rainy days
39% of days
☀️ Sunshine
11.3h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.5/10
📅 📅 Best month
July (8.7/10)
Quick decision
Should you visit Ljubljana in September?
✅ Good
✅ Yes if: you want shoulder-season value — fewer crowds, 22°F.
❌ No if: you need maximum sunshine — some overcast days are possible.
Our take: Favourable conditions in September (7.5/10). July scores higher but the gap is small.
By trip type
Ljubljana in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ⚠️ Possible
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in September
Autumn in Ljubljana is often underrated: 22°F, golden light and declining crowds. An interesting window. Expect rain on 39% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if July (8.7/10) remains theoretically better.
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Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌫️ January | 25°F | 41°F | 29% | 0.1in | 6.1h | 4.0/10 |
| 🌫️ February | 28°F | 48°F | 31% | 0.1in | 7.2h | 4.4/10 |
| ⛅ March | 34°F | 54°F | 35% | 0.1in | 10.0h | 5.7/10 |
| ⛅ April | 41°F | 61°F | 31% | 0.1in | 11.7h | 7.1/10 |
| 🌦️ May | 48°F | 66°F | 50% | 0.2in | 12.0h | 7.1/10 |
| 🌤️ June | 57°F | 79°F | 38% | 0.1in | 14.0h | 8.4/10 |
| 🌤️ July | 61°F | 82°F | 35% | 0.1in | 14.0h | 8.7/10 |
| 🌤️ August | 61°F | 81°F | 31% | 0.1in | 12.7h | 8.5/10 |
| 🌤️ September | 54°F | 72°F | 39% | 0.2in | 11.3h | 7.5/10 |
| ⛅ October | 45°F | 63°F | 32% | 0.1in | 9.1h | 7.0/10 |
| 🌦️ November | 37°F | 50°F | 38% | 0.2in | 5.2h | 4.0/10 |
| 🌫️ December | 28°F | 41°F | 30% | 0.1in | 5.0h | 3.6/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In September, Ljubljana averages 72°F, 39% rainy days and 11.3h of sunshine per day. Overall weather score: 7.5/10.
See methodology →
Comparison
September vs July (best month)
The best month is July (score 8.7/10). Difference:
- 🌡️ Max temperature : +6°F
- 🌧 Rainy days : -4%
- ☀️ Sunshine : +2.7h/day
FAQ
FAQ — Ljubljana in September
Is September a good time to visit Ljubljana?
September is an excellent time to visit Ljubljana (score 7.5/10). With 72°F, 11.3h of sunshine and 39% rain, conditions are very favourable.
What to do in Ljubljana in September?
With 72°F max and 11.3h of sunshine, focus on cultural sites, museums and local gastronomy.
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Activities and tours in Ljubljana
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