September 16 is generally a great time to visit Barcelona. While there is a slight chance of rain (21%), showers are usually brief. Expect comfortable 24°C weather. Barcelona is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Barcelona Weather Forecast for September 16
"Mild & Comfortable. Expect average highs of 24.4°C. 21% chance of rain."
What to Wear in Barcelona in September
Based on historical data for September 16, Barcelona typically experiences temperatures between 17.9°C and 24.4°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 Barcelona
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
24.4°C
Daytime Peak
Average Low
17.9°C
Nighttime Low
Feels Like
25.2°C
☀️ Feels accurate
Rain Chance
21%
Avg 2.2mm if it rains
Cloud Cover
52%
Overcast
Pressure
1016.1 hPa
Medium volatility
Barcelona 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
🔴 28 min to burn
Type III-IV
🟡 42 min to burn
Type V-VI
🟢 70 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
19.9°C
Noticeable
Heat Stress
Low
No heat warning
🙂 Best outdoor time:
Any time during daylight hours
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Spain
Flight Traffic
High
99/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~1,280
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Barcelona
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:33
☀️ Noon
12:47
🌇 Sunset
19:01
⏱️ Daylight
12h 28m
Wind Speed
14.1 km/h
Gentle breeze
Sunshine
9.8 hrs
Direct Sun (Cloud-free)
Humidity
76%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Barcelona
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Barcelona
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 excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Barcelona on September 16 averages 24.4°C with a 21% precipitation probability. Wedding/Outdoor Event Score: 98/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Barcelona Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (September 16) in other destinations
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📍 Is Barcelona Worth Visiting on September 16?
Planning a trip to Barcelona on September 16? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 24.4°C with a 21% historical precipitation risk.
✈️ Travel Logistics: Approximately 1,280 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 7 vaccinations are recommended for Spain, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 25.5°C (tropical bath). Wave conditions are generally fun waves with heights around 0.67m.
📊 Historical Extremes: The hottest September 16 recorded in the last 30 years saw temperatures hit 28.1°C in 2020, while the coldest dropped to 11.7°C in 2017.