September 18 is generally a great time to visit Bariloche. While there is a slight chance of rain (27%), showers are usually brief. Expect comfortable 8°C weather. Bariloche is seeing high visitor numbers, so iconic spots may be busier than usual.
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Essential Travel Info for Bariloche
Currency
ARS
$ Argentine peso
Language
Guaraní
+1 more
Driving
Right side
Safety
High Safety
GPI: 1.911
Bariloche Weather Forecast for September 18
"Mild & Comfortable. Expect average highs of 8.3°C. 27% chance of snow."
What to Wear in Bariloche in September
Based on historical data for September 18, Bariloche typically experiences temperatures between 1.5°C and 8.3°C. We recommend packing heavy coat, scarf, gloves to stay comfortable. With a 27% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Bariloche
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
Average High
8.3°C
Daytime Peak
Average Low
1.5°C
Nighttime Low
Feels Like
6.1°C
❄️ Slightly colder
Snow Chance
27%
Avg 1.4mm if it snows
Snowfall
0.9 cm
~27% chance
Pressure
1018.3 hPa
Medium volatility
Bariloche Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 89% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 31 min to burn
Type III-IV
🟡 47 min to burn
Type V-VI
🟢 78 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
4.9°C
Dry air
Heat Stress
Low
No heat warning
😐 Best outdoor time:
Midday (11 AM - 3 PM) when warmest
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Argentina
Flight Traffic
Busy
64/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~28
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Bariloche
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:42
☀️ Noon
13:40
🌇 Sunset
19:38
⏱️ Daylight
11h 55m
Wind Speed
12.9 km/h
Gentle breeze
Sunshine
8.7 hrs
Direct Sun (Cloud-free)
Humidity
79%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Bariloche
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Bariloche
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Moderate seismic activity. Occasional tremors possible.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Bariloche on September 18 averages 8.3°C with a 27% precipitation probability. Wedding/Outdoor Event Score: 55/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Bariloche Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
September 25
10°C • 15% rain
Score
68
September 24
9.7°C • 16% rain
Score
66
September 23
9.4°C • 18% rain
Score
64
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (September 18) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Bariloche Worth Visiting on September 18?
Planning a trip to Bariloche on September 18? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 8.3°C with a 27% historical precipitation risk.
✈️ Travel Logistics: Approximately 28 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 8 vaccinations are recommended for Argentina, including COVID-19.
📊 Historical Extremes: The hottest September 18 recorded in the last 30 years saw temperatures hit 15.4°C in 2024, while the coldest dropped to -3°C in 2023.