Dee Why
City in New South Wales, Australia
Overview
Dee Why is a popular Northern Beaches suburb of Sydney, renowned for its sweeping seaside views and laid-back surf culture. It offers a blend of family-friendly parks, a lively dining scene, and a lively beachfront promenade.
Geographic Context
Jurisdiction
Australia
State
New South Wales
Population
23,354
Time Zone
Australia/Sydney
Coordinates
-33.75°, 151.29°
Key Metrics
Safety Score
90
Female Safety
89
LGBTQ+ Safety
93
Traffic Safety
87
Food Safety
99
Monthly Cost
$3,758
Local Cost
$2,320
Local Income
$3,400
Cashless
98
English
100
Temperature
18.7°C
Summer Avg
22.4°C
Winter Avg
14.5°C
Record High
39.9°C
Record Low
6.0°C
Humidity
73%
Precipitation
887 mm
Internet Speed
103 Mbps
Upload
18 Mbps
Latency
12 ms
City Vibrancy
66
Coworking
0
Cafes
25
Nightlife
3
Parks
38
Transport
0
Walk Score
0
Footways
—
Airport
RSE
Distance
13 km
Explore
Neighborhoods
EstimatedNeighborhood highlights with vibe, safety, and cost profiles.
View featured neighborhoodsFrequently 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 93 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 89/100.