HeatGuard · IAAC × Infrared Hackathon 2026

See the heat
before it kills.

Outdoor festivals concentrate hundreds of thousands of people in open terrain during the hottest months. UTCI analysis shows us exactly who is at risk — and exactly where a shade structure saves the most lives.

61,000
deaths in the 2022 European heatwave — more than floods, storms and fires combined
41°C
UTCI threshold for heat stroke — triggers in under 20 min of exposure
−9°C
perceived temperature drop under a targeted shade structure
Powered by Infrared SDK · Open-Meteo · OpenStreetMap · Mapbox

Select a festival

Choose an event to run the full thermal comfort analysis. Risk projections are calculated from real weather forecasts.

Donauinselfest
Vienna, Austria · Donauinsel · Jun 26–28, 2026 · 4.5 km festival strip
250,000
visitors
161k+
at stroke risk (peak)
+20
structures recommended
Critical risk
→
Glastonbury Festival
Somerset, UK · Jun 25–29, 2026 · 210,000 capacity
210,000
visitors
Coming soon
Untold Festival
Cluj-Napoca, Romania · Aug 7–10, 2026 · 350,000 capacity
350,000
visitors
Coming soon

Analysing Donauinselfest

Real-time thermal comfort pipeline ·

Loading…
—
people at heat stroke risk
UTCI >41°C · immediate danger
—
at heat exhaustion risk
UTCI >35°C · medical attention needed
+—
protected after shade intervention
−9°C under structure · from danger to safe
Event hour 14:00
12:0015:0018:0021:0023:00
Forecast · Open-Meteo
Data sources
Weather (Open-Meteo live)
Fetching island boundary…
Buildings — loading…
Trees — loading…
Top shade placements
Click to place vertices · Double-click to finish