Ljubljana weather in September
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Ljubljana September weather at a glance
In September, Ljubljana averages 16.7°C, with typical highs of 22.1°C and lows of 12°C. The historical average is 13 wet days and 79% humidity.
Ljubljana September temperature & humidity
Ljubljana September rain & wet days
Pack a compact umbrella. Keep an indoor stop available between outdoor activities.
What to wear in Ljubljana in September
T-shirts or long sleeves with one light outer layer should be comfortable. The typical day-to-night swing is about 10°C, so bring an extra layer. Showers are possible, so a compact umbrella is useful.
- DaytimeLong sleeves and a light jacket · average high 22.1°C
- Morning & eveningLong sleeves with a jacket or cardigan · average low 12°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Ljubljana September sunrise & sunset times
2026 September · Local time (Europe/Ljubljana)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-09-01 | 06:22 | 19:41 | 13h 18m |
| 2026-09-15 | 06:40 | 19:14 | 12h 34m |
| 2026-09-30 | 06:59 | 18:44 | 11h 45m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
Ljubljana travel updates
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- Ljubljana city and weather webcamsLjubljana.info / ARSO sources · Camera directory
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Today’s weather and forecast
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Forecast · Windy. Monthly averages are in the Temperature section.
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Ljubljana travel essentials
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Best months to visit Ljubljana
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
September weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Ljubljana weather like in September?
In September, Ljubljana averages 16.7°C, with typical highs of 22.1°C and lows of 12°C. The historical average is 13 wet days and 79% humidity. Our weather-comfort rating for this month is fair.
Does it rain a lot in Ljubljana in September?
There are about 13 wet days in September. A compact umbrella is still useful.
What should I wear in Ljubljana in September?
T-shirts or long sleeves with one light outer layer should be comfortable. The typical day-to-night swing is about 10°C, so bring an extra layer. Showers are possible, so a compact umbrella is useful.
What are the best months to visit Ljubljana?
Recent weather data rates June, July, August among the more comfortable months.
Where can I check Ljubljana weather in September in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Ljubljana in September?
On 2026-09-15, calculated sunrise is 06:40 and sunset is 19:14 in local time (Europe/Ljubljana). Times vary by date and terrain.
Ljubljana weather by month
More Europe destinations in September
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations