September 23 is generally a great time to visit Hamburg. While there is a slight chance of rain (16%), showers are usually brief. Expect comfortable 18°C weather. As it's peak season for Hamburg, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Hamburg
Currency
EUR
€ Euro
Language
German
Driving
Right side
Connect
Contrary to what one might suspect from ...
Safety
Very High Safety
GPI: 1.462
Hamburg Weather Forecast for September 23
"Mild & Comfortable. Expect average highs of 17.9°C. 16% chance of rain."
What to Wear in Hamburg in September
Based on historical data for September 23, Hamburg typically experiences temperatures between 10.3°C and 17.9°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (16% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Hamburg
Smart Suitcase
- Light Jacket
- Long Pants
Average High
17.9°C
Daytime Peak
Average Low
10.3°C
Nighttime Low
Feels Like
17.9°C
🌤️ Feels accurate
Rain Chance
16%
Avg 0.8mm if it rains
Cloud Cover
61%
Overcast
Pressure
1016.7 hPa
High volatility
Hamburg Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 40 min to burn
Type III-IV
🟡 60 min to burn
Type V-VI
🟢 100 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
14°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 Germany
Flight Traffic
High
96/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~184
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Hamburg
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:08
☀️ Noon
12:13
🌇 Sunset
18:19
⏱️ Daylight
12h 11m
Wind Speed
15.8 km/h
Gentle breeze
Sunshine
7.7 hrs
Direct Sun (Cloud-free)
Humidity
78%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Hamburg
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 Hamburg
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
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Hamburg on September 23 averages 17.9°C with a 16% precipitation probability. Wedding/Outdoor Event Score: 95/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Hamburg Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
September 19
18.5°C • 14% rain
Score
100
September 20
18.5°C • 14% rain
Score
100
September 21
18.4°C • 13% rain
Score
100
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (September 23) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Hamburg Worth Visiting on September 23?
Planning a trip to Hamburg on September 23? 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 17.9°C with a 16% historical precipitation risk.
✈️ Travel Logistics: Approximately 184 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 8 vaccinations are recommended for Germany, including COVID-19.
📊 Historical Extremes: The hottest September 23 recorded in the last 30 years saw temperatures hit 23.3°C in 2020, while the coldest dropped to 8.1°C in 2025.