Cool living in Vienna — summer heat by district
The coolest district is Döbling, the most heat-prone Innere Stadt. All 23 districts from cool to hot — modelled from built form, green, trees & water.
Where Vienna heats up in summer comes down to how it is built: dense, sealed Gründerzeit quarters trap the heat and barely cool at night (heat islands), while green, loosely built areas, closeness to open water and the Vienna Woods slopes stay noticeably cooler. The index is modelled from exactly these real factors and cross-checked against the City of Vienna climate-analysis map — not a measured temperature. Within a district it varies a lot: a park or a waterside spot is far cooler than a tight urban canyon next door.
All 23 districts — cool to heat-prone
Modelled heat-vulnerability index (built form, green, trees, water, elevation) — cross-checked against the City of Vienna Klimaanalysekarte (Stadtklimaanalyse 2020, CC BY 4.0). Not a measured temperature; varies within each district.
Find cool, green Grätzl on the map →Frequently asked
Which is the coolest district in Vienna in summer?
Döbling stays coolest in our model — leafy, loosely built and partly on the Vienna Woods slopes. In general the green hill districts (19th, 18th, 13th, 17th) and waterside spots stay cooler.
Which district is the most heat-prone?
Innere Stadt is the most heat-prone — dense, sealed and short on green. The inner Gründerzeit districts and the Gürtel belt heat up most and cool least at night.
How is the heat index calculated?
It is modelled from real drivers — building enclosure (Sky-View), building density, green space, street trees, closeness to open water and elevation — and cross-checked against the City of Vienna Klimaanalysekarte (CC BY 4.0). It is a modelled vulnerability index, not a measured temperature.
What helps against summer heat when choosing a flat?
Green and trees within walking distance, closeness to open water (Danube, Alte Donau), an open, loosely built surrounding and a higher location. Inside a heat-prone district, a spot by a park or the water can still be much cooler.