SeasonMapSlovenia in September
September is Slovenia's 4th-best month (rank 4 of 12): its 4 destinations average 68/100, led by Ljubljana at 85 — 21°C and 11 rainy days — while Kranjska Gora trails at 19 with 149 mm of rain.
#4 of 12 months for Slovenia · 4 destinations · updated September 2026 · climate normals from ERA5 reanalysis
Where in Slovenia in September
| # | Place | Type | Feels-like high | Rain | Comfort | At its best |
|---|---|---|---|---|---|---|
| 1 | Ljubljana | City | 21°C | 122 mm · 11 days | 85 tier A | Yes |
| 2 | Bled | City | 21°C | 146 mm · 12 days | 84 tier A | Yes |
| 3 | Piran | Beach | 24°C | 155 mm · 10 days | 83 tier A | — |
| 4 | Kranjska Gora | Ski resort | 19°C | 149 mm · 13 days | 19 tier F | — |
Comfort is SeasonMap's 0–100 score; each place is judged through the lens that suits it — beaches on beach weather, ski resorts on snow. "At its best" means September is one of that place's own top three months. Feels-like highs fold in humidity, wind and sun.