The block matters more than the district
Heat islands are local: a dense, treeless street can be several degrees hotter than the park edge three blocks away. Check the map above for the exact address before a viewing.
Living · Topic
Where does Graz stay coolest?
Official Graz climatope map (heat load), evaluated per 250 m cell · as of: August 2026
Summer heat is a location question. wohnwahn evaluated the official climatope map for every inhabited 250 m cell in Graz: 53% of residential spots have low heat load, and the gap between districts is wide: in Mariatrost 87% of spots stay cool, in Jakomini only 3%.
And because a district is not an address: the map below shows the heat island, and the cool courtyard three blocks away.
The heat map of Graz
Green means cool, red means heat island. Every square is an inhabited 250 m cell with its official heat load (climatope map, City of Graz).
Only inhabited cells are coloured. The official climatope map covers the city of Graz; for the surrounding towns the map shows the heat load modelled from the official imperviousness layer (Copernicus), honestly labelled as a model. Tap the map: the heat load for that exact spot.
Graz’s coolest districts
Ranked by the median heat load of inhabited residential cells. Linked: the full district profile in the atlas.
- 187%cool residential spots
- 286%cool residential spots
- 375%cool residential spots
- 471%cool residential spots
- 559%cool residential spots
- 654%cool residential spots
- 750%cool residential spots
- 849%cool residential spots
- 947%cool residential spots
- 1039%cool residential spots
Method: official heat-load map (climatope map, Stadt Graz, CC BY 4.0), one value per inhabited 250 m cell, clipped to the real district boundary. Honest caveat: even hot districts have cool courtyards and park edges; the map above shows the exact spot. Prices: asking prices per m² (condos), IMMOXX-Markterhebung (Kauf) / immomarktanalyse.at (Miete), as of Juni 2026.
Cool, yet in the middle of it
Cool usually means the green edge of town. These districts prove you can have both: share of residential cells with low heat load AND within 25 minutes of Jakominiplatz by transit (matched per cell).
How to find a flat that stays cool
Trees and water are real cooling
Street trees and nearby water measurably cool their surroundings. Every wohnwahn listing shows the trees around the address and the water proximity of the location.
Top floor, west windows, no shade?
The flat itself decides the rest: an attic flat with west-facing windows heats up differently than a shaded courtyard flat. The sun check shows sun hours and shading for any address, per floor.
Think about the evening
Hot locations stay warm at night, and nights are when heat hurts sleep. Cool spots with green buffers cool down faster after sunset. The heat load value reflects exactly that.
Homes in cool locations
Currently 2 listings on wohnwahn sit in an officially cool spot. Each card shows the heat load of its location.
heat load: lowX. RiesCharmante 2-Zimmer Wohnung mit Grosszügiger SW-Terrasse | in Wunderschöner Altbau-Villa | Hell & Gemütlich | Ideal für…€ 263,985 · 2 rm · 54 m²
heat load: lowXVII. PuntigamModerne Familienwohnung mit ruhigem Balkon und Top-Infrastruktur€ 278,600 · 3 rm · 55 m²
heat load: moderateXVI. StraßgangFreifläche | in Beliebter Lage | Zwei Zimmer€ 711/month · 2 rm · 57 m²
heat load: moderateXVI. Straßgang3 Zimmer | Terrasse | Schöne Mietwohnung€ 939/month · 3 rm · 77 m²
heat load: moderateXVI. StraßgangGraz Strassgang | Ulmenhof | Westliche Ausrichtung€ 705/month · 2 rm · 58 m²
heat load: moderateXVI. Straßgangim Ulmenhof | Beliebte Lage | 3-Zimmer Wohnung | Südbalkon€ 945/month · 3 rm · 76 m²Frequently asked questions
Which is Graz’s coolest district?
By the share of cool residential spots it is Mariatrost (): 87% of inhabited cells have low heat load (median heat value 32/100), ahead of Ries and Andritz. Source: official climatope map, evaluated per 250 m cell.
How big is the difference between districts really?
Large. In Mariatrost, 87% of residential spots are cool; in Jakomini it is 3%. Within a district the spread is just as real, which is why the map shows every single 250 m cell.
What is “heat load” and where does it come from?
The official Graz climatope map (Stadt Graz, CC BY 4.0) divides the city into climatopes, from the urban heat island and the Gründerzeit belt through perimeter blocks and garden city to slopes, parks and cold side valleys; wohnwahn places each class on the heat scale. wohnwahn reads this map per inhabited 250 m cell and translates it into the words you see here (very low to very high).
Do trees and water really help?
Yes, measurably: vegetation and water cool their local surroundings through shade and evaporation. That’s why every listing on wohnwahn shows the street trees around the address (tree cadastre City of Graz) and the water proximity of the location.
What about climate change: will it stay cool?
Heat is rising city-wide, so the honest question is which locations have a buffer. Cool spots with green and water cushion hot summers better than dense, sealed blocks. The heat map above is the best available official basis for that decision, and we refresh our evaluation monthly (as of August 2026).
Related topics
More honest data on where to live well in Graz and the surrounding area.
Find a home that stays cool, honestly.
Use the climate-fit filter, tap any address on the map, and check trees, water and sun hours before the viewing. Free and independent.
How wohnwahn rates locations →Check sun & shade for any address →Quiet living →Green living →Living by the water →Family-friendly →
Sources: climatope map Graz (City of Graz, CC BY 4.0) · tree cadastre City of Graz · water: OpenStreetMap · transit: own routing on the Graz Linien (Styrian transit) and ÖBB timetables · prices: IMMOXX-Markterhebung (Kauf) / immomarktanalyse.at (Miete). Refreshed monthly.