September 21 is statistically one of the best days of the year in Madrid. With minimal rain risk (14%) and pleasant highs of 25°C, it's ideal for outdoor adventures. As it's peak season for Madrid, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Madrid
Currency
EUR
€ Euro
Language
Spanish
+3 more
Driving
Right side
Connect
As of Sept 2021, Madrid has 5G from all ...
Safety
High Safety
GPI: 1.603
Madrid Weather Forecast for September 21
"Mild & Comfortable. Expect average highs of 24.7°C. 14% chance of rain."
What to Wear in Madrid in September
Based on historical data for September 21, Madrid typically experiences temperatures between 13.6°C and 24.7°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (14% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Madrid
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
24.7°C
Daytime Peak
Average Low
13.6°C
Nighttime Low
Feels Like
25°C
☀️ Feels accurate
Rain Chance
14%
Avg 0.5mm if it rains
Cloud Cover
40%
Overcast
Pressure
1016.4 hPa
Low volatility
Madrid Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ This date historically delivers consistent weather 79% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
07:00 - 10:00
16:00 - 19:00
Type I-II
🔴 23 min to burn
Type III-IV
🟡 35 min to burn
Type V-VI
🟢 58 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°C
Pleasant
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Spain
Flight Traffic
High
82/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~1,813
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Madrid
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:02
☀️ Noon
13:09
🌇 Sunset
19:16
⏱️ Daylight
12h 13m
Wind Speed
13 km/h
Gentle breeze
Sunshine
10.3 hrs
Direct Sun (Cloud-free)
Humidity
55%
Comfortable
Travel Intelligence
Exclusive flight analytics & health data for Madrid
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Madrid
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 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.
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, Madrid on September 21 averages 24.7°C with a 14% precipitation probability. Wedding/Outdoor Event Score: 100/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Madrid Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (September 21) in other destinations
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🌍 Explore the same date in different destinations around the world
📍 Is Madrid Worth Visiting on September 21?
Planning a trip to Madrid on September 21? 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 24.7°C with a 14% historical precipitation risk.
✈️ Travel Logistics: Approximately 1,813 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 7 vaccinations are recommended for Spain, including COVID-19.
📊 Historical Extremes: The hottest September 21 recorded in the last 30 years saw temperatures hit 31.6°C in 2018, while the coldest dropped to 10.2°C in 2021.