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Sønderborg
City in Southern Denmark, Denmark
Overview
Sønderborg is a picturesque coastal city set in Southern Denmark, known for its rich history, waterfront promenade, and blend of Danish and German influences. Its small-town charm is complemented by lively cultural offerings and stunning natural surroundings along the Alssund.
Geographic Context
Jurisdiction
Denmark
Region
Southern Denmark
Population
27,595
Time Zone
Europe/Copenhagen
Coordinates
54.91°, 9.79°
Key Metrics
Safety Score
93
Female Safety
92
LGBTQ+ Safety
90
Traffic Safety
94
Food Safety
98
Monthly Cost
$2,760
Local Cost
$1,580
Local Income
$3,000
Cashless
96
English
91
Temperature
9.0°C
Summer Avg
16.8°C
Winter Avg
1.8°C
Record High
28.3°C
Record Low
-11.4°C
Humidity
87%
Precipitation
730 mm
Internet Speed
277 Mbps
Upload
596 Mbps
Latency
6 ms
City Vibrancy
52
Coworking
1
Cafes
15
Nightlife
13
Parks
23
Transport
0
Walk Score
0
Footways
—
Airport
SGD
Distance
6 km
Explore
Frequently Asked Questions
Data sources
Source-backed data
NASA POWER - Climate normals and monthly weather measurements rendered as city weather metrics. Updated 2026-03-22.
World Air Quality Index - Latest available city-level air quality station measurement. Updated 2025-12-05.
Ookla Open Data - Internet speed aggregates for 2024Q3 from 128 tests. Updated 2025-12-05.
OpenStreetMap - Nearby amenities counted from OpenStreetMap-derived city extracts. Updated 2025-12-06.
OpenStreetMap transport extract - Walkability, footway density, and airport access metrics derived from mapped transport features. Updated 2025-12-05.
Oyster List city price model - City price estimates calibrated from local price surveys and jurisdiction-level cost signals. Updated 2026-01-14.
Estimated data
Oyster List AI-assisted estimates - Safety, lifestyle, income, and practical scores are model-assisted estimates derived from source-backed country and city signals. Confidence 78/100.
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