August 15 is generally a great time to visit Ljubljana. While there is a slight chance of rain (21%), showers are usually brief. Expect comfortable 27°C weather. As it's peak season for Ljubljana, we recommend booking your stay well in advance to secure the best rates. Note: August 15 is Unification of Prekmurje Slovenes with the Mother Nation in Ljubljana, so expect special events, closures, and festive atmosphere.
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Essential Travel Info for Ljubljana
Currency
EUR
€ Euro
Language
Slovene
Driving
Right side
Connect
As of 2025, Ljubljana has excellent 5G a...
Safety
Very High Safety
GPI: 1.316
Ljubljana Weather Forecast for August 15
"Warm & Sunny. Expect average highs of 26.9°C. 21% chance of rain."
What to Wear in Ljubljana in August
Based on historical data for August 15, Ljubljana typically experiences temperatures between 15.7°C and 26.9°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (21% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Ljubljana
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
26.9°C
Daytime Peak
Average Low
15.7°C
Nighttime Low
Feels Like
28°C
🔥 Minor difference
Rain Chance
21%
Avg 1.8mm if it rains
Cloud Cover
49%
Overcast
Pressure
1015.4 hPa
Low volatility
Ljubljana Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 93% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 10:00
16:00 - 19:00
Type I-II
🔴 19 min to burn
Type III-IV
🟡 29 min to burn
Type V-VI
🟢 48 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
21.4°C
Humid/Sticky
Heat Stress
Low
No heat warning
🙂 Best outdoor time:
Morning hours (before 11 AM)
Travel & Logistics Insights
Local Calendar
Holiday
Unification of Prekmurje Slovenes with the Mother Nation
Flight Traffic
High
81/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~26
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Ljubljana
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:02
☀️ Noon
12:07
🌇 Sunset
19:13
⏱️ Daylight
14h 11m
Wind Speed
9.1 km/h
Light breeze
Sunshine
11.4 hrs
Direct Sun (Cloud-free)
Humidity
72%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Ljubljana
Smart Flight Estimator
Airport-to-Airport Logistics
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Add your home location in settings to see airport details.
Travel Health & Safety in Ljubljana
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🔴 Very Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Unhealthy for sensitive groups. Consider wearing a mask outdoors.
Regional Safety Profile
Seismic Activity
Moderate seismic activity. Occasional tremors possible.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Ljubljana on August 15 averages 26.9°C with a 21% precipitation probability. Wedding/Outdoor Event Score: 98/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Ljubljana Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (August 15) in other destinations
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📍 Is Ljubljana Worth Visiting on August 15?
Planning a trip to Ljubljana on August 15? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 26.9°C with a 21% historical precipitation risk.
🎉 Local Event: The date coincides with Unification of Prekmurje Slovenes with the Mother Nation, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 26 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 7 vaccinations are recommended for Slovenia, including COVID-19.
📊 Historical Extremes: The hottest August 15 recorded in the last 30 years saw temperatures hit 33.5°C in 2021, while the coldest dropped to 11.9°C in 2019.