May 12 is generally a great time to visit Barcelona. While there is a slight chance of rain (25%), showers are usually brief. Expect comfortable 20°C weather. Moderate travel demand makes this an excellent time for a balanced Barcelona experience.
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Barcelona Weather Forecast for May 12
"Mild & Comfortable. Expect average highs of 20.3°C. 25% chance of rain."
What to Wear in Barcelona in May
Based on historical data for May 12, Barcelona typically experiences temperatures between 12.9°C and 20.3°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (25% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Barcelona
Smart Suitcase
- Light Jacket
- Long Pants
Average High
20.3°C
Daytime Peak
Average Low
12.9°C
Nighttime Low
Feels Like
20.4°C
☀️ Feels accurate
Rain Chance
25%
Avg 1.3mm if it rains
Cloud Cover
54%
Overcast
Pressure
1015 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 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 - 20:00
Type I-II
🔴 15 min to burn
Type III-IV
🟡 23 min to burn
Type V-VI
🟢 38 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
15.9°C
Pleasant
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
⚠️ Mixed Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Spain
Flight Traffic
Moderate
45/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~585
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Barcelona
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:37
☀️ Noon
12:49
🌇 Sunset
20:00
⏱️ Daylight
14h 23m
Wind Speed
16.6 km/h
Gentle breeze
Sunshine
11.8 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 May 12 averages 20.3°C with a 25% precipitation probability. Wedding/Outdoor Event Score: 96/100."
— 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
Better Alternatives Nearby
Consider these dates within ±7 days
May 7
19.8°C • 15% rain
Score
100
May 17
20.7°C • 15% rain
Score
100
May 18
20.8°C • 13% rain
Score
100
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (May 12) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Barcelona Worth Visiting on May 12?
Planning a trip to Barcelona on May 12? 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 20.3°C with a 25% historical precipitation risk.
✈️ Travel Logistics: Approximately 585 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 18.2°C (refreshing tonic). Wave conditions are generally lake-like with heights around 0.43m.
📊 Historical Extremes: The hottest May 12 recorded in the last 30 years saw temperatures hit 24.7°C in 2017, while the coldest dropped to 9.1°C in 2021.