September 23 is statistically one of the best days of the year in Stockholm. With minimal rain risk (13%) and pleasant highs of 15°C, it's ideal for outdoor adventures. Expect a bustling atmosphere in Stockholm right now—this is when the city truly comes alive with visitors.
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Essential Travel Info for Stockholm
Currency
SEK
kr Swedish krona
Language
Swedish
Driving
Right side
Connect
As of Sept 2021, central Stockholm has 5...
Safety
High Safety
GPI: 1.564
Stockholm Weather Forecast for September 23
"Mild & Comfortable. Expect average highs of 15°C. 13% chance of rain."
What to Wear in Stockholm in September
Based on historical data for September 23, Stockholm typically experiences temperatures between 9°C and 15°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (13% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Stockholm
Smart Suitcase
- Light Jacket
- Long Pants
Average High
15°C
Daytime Peak
Average Low
9°C
Nighttime Low
Feels Like
15°C
🌤️ Feels accurate
Rain Chance
13%
Avg 0.5mm if it rains
Cloud Cover
60%
Overcast
Pressure
1014.8 hPa
High volatility
Stockholm Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 96% 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
🔴 44 min to burn
Type III-IV
🟡 66 min to burn
Type V-VI
🟢 110 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
11.6°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 Sweden
Flight Traffic
High
96/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~318
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Stockholm
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:34
☀️ Noon
11:41
🌇 Sunset
17:48
⏱️ Daylight
12h 13m
Wind Speed
16.2 km/h
Gentle breeze
Sunshine
8.1 hrs
Direct Sun (Cloud-free)
Humidity
80%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Stockholm
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Stockholm
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Rapid pressure changes detected. High risk for meteosensitive people.
Weather unlikely to affect joint pain.
Fish are active due to pressure changes.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Stockholm on September 23 averages 15°C with a 13% precipitation probability. Wedding/Outdoor Event Score: 100/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Stockholm Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (September 23) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Stockholm Worth Visiting on September 23?
Planning a trip to Stockholm on September 23? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 15°C with a 13% historical precipitation risk.
✈️ Travel Logistics: Approximately 318 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 7 vaccinations are recommended for Sweden, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 18.6°C (refreshing tonic). Wave conditions are generally lake-like with heights around 0.35m.
📊 Historical Extremes: The hottest September 23 recorded in the last 30 years saw temperatures hit 19.7°C in 2020, while the coldest dropped to 2.7°C in 2019.