September 21 is generally a great time to visit Gothenburg. While there is a slight chance of rain (29%), showers are usually brief. Expect comfortable 16°C weather. Gothenburg is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Gothenburg
Currency
SEK
kr Swedish krona
Language
Swedish
Driving
Right side
Connect
As of June 2025, Gothenburg has 5G from ...
Safety
High Safety
GPI: 1.564
Gothenburg Weather Forecast for September 21
"Mild & Comfortable. Expect average highs of 15.9°C. 29% chance of rain."
What to Wear in Gothenburg in September
Based on historical data for September 21, Gothenburg typically experiences temperatures between 10.1°C and 15.9°C. We recommend packing light jacket, long pants to stay comfortable. With a 29% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Gothenburg
Smart Suitcase
- Light Jacket
- Long Pants
Average High
15.9°C
Daytime Peak
Average Low
10.1°C
Nighttime Low
Feels Like
15.9°C
🌤️ Feels accurate
Rain Chance
29%
Avg 1.9mm if it rains
Cloud Cover
66%
Overcast
Pressure
1015.5 hPa
High volatility
Gothenburg Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 95% 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
🔴 47 min to burn
Type III-IV
🟡 71 min to burn
Type V-VI
🟢 118 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
13°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
❄️ Cold Water Hazard
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Sweden
Flight Traffic
High
100/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~77
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Gothenburg
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:55
☀️ Noon
12:06
🌇 Sunset
18:17
⏱️ Daylight
12h 22m
Wind Speed
18.4 km/h
Gentle breeze
Sunshine
7.5 hrs
Direct Sun (Cloud-free)
Humidity
83%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Gothenburg
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Gothenburg
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
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, Gothenburg on September 21 averages 15.9°C with a 29% precipitation probability. Wedding/Outdoor Event Score: 85/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Gothenburg Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
September 28
14.8°C • 33% rain
Score
89
September 22
15.8°C • 26% rain
Score
86
September 23
15.6°C • 25% rain
Score
86
💡 Moving your event by a few days could significantly improve weather conditions
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 Gothenburg Worth Visiting on September 21?
Planning a trip to Gothenburg 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 15.9°C with a 29% historical precipitation risk.
✈️ Travel Logistics: Approximately 77 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 16.7°C (polar plunge). Wave conditions are generally lake-like with heights around 0.48m.
📊 Historical Extremes: The hottest September 21 recorded in the last 30 years saw temperatures hit 22°C in 2023, while the coldest dropped to 6.7°C in 2022.