September 21 is statistically one of the best days of the year in Tucumán. With minimal rain risk (11%) and pleasant highs of 26°C, it's ideal for outdoor adventures. You'll find plenty of company in Tucumán this month as tourism activity remains quite robust.
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Essential Travel Info for Tucumán
Currency
ARS
$ Argentine peso
Language
Guaraní
+1 more
Driving
Right side
Safety
High Safety
GPI: 1.911
Tucumán Weather Forecast for September 21
"Warm & Sunny. Expect average highs of 25.8°C. 11% chance of rain."
What to Wear in Tucumán in September
Based on historical data for September 21, Tucumán typically experiences temperatures between 12.6°C and 25.8°C. We recommend packing t-shirt, light clothing, layers (onion system) to stay comfortable. Trends suggest it will stay mostly dry (11% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Tucumán
Smart Suitcase
- T-Shirt
- Light Clothing
- Layers (Onion System)
Average High
25.8°C
Daytime Peak
Average Low
12.6°C
Nighttime Low
Feels Like
26.2°C
☀️ Feels accurate
Rain Chance
11%
Avg 0.6mm if it rains
Cloud Cover
32%
Overcast
Pressure
1013 hPa
Medium volatility
Tucumán Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
~ Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
07:00 - 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
16.1°C
Noticeable
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Argentina
Flight Traffic
Busy
69/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~11
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Tucumán
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:13
☀️ Noon
13:15
🌇 Sunset
19:17
⏱️ Daylight
12h 4m
Wind Speed
10.1 km/h
Light breeze
Sunshine
10.1 hrs
Direct Sun (Cloud-free)
Humidity
55%
Comfortable
Travel Intelligence
Exclusive flight analytics & health data for Tucumán
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Tucumán
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
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 acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Tucumán on September 21 averages 25.8°C with a 11% precipitation probability. Wedding/Outdoor Event Score: 100/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Tucumán Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
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📍 Is Tucumán Worth Visiting on September 21?
Planning a trip to Tucumán on September 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 25.8°C with a 11% historical precipitation risk.
✈️ Travel Logistics: Approximately 11 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 21 recorded in the last 30 years saw temperatures hit 33.7°C in 2024, while the coldest dropped to 7.4°C in 2019.