Heat Island Monitoring with IoT Sensors Urban areas often become several degrees hotter than their surroundings known as the urban heat island effect. During heat waves, factors like high humidity and impeding the body’s sweat evaporation can make it feel extraordinarily hot. For example, 37.8 °C paired with high humidity can feel like 45.6 °C. When wet-bulb temperatures exceed 35 °C, it’s simply unsafe for your body because it can’t cool itself under such conditions.

 

Microclimate sensor in Ljubljana

 

 

What sensors measure?

Senzemo’s IoT solutions use LoRaWAN-connected sensors to monitor:

  • Air temperature
  • Humidity
  • Air pressure
  • Soil moisture
  • Rainfall

This real-time data captures granular microclimate conditions across cities.

 

Outdoor Microclimate Sensor – SMC30, Rain Meter – SRM10, Soil Moisture – SSM40

 

 

Why Ground Sensors Beat Satellites

Satellites offer broad coverage but lack the detail, timeliness, and air temperature data crucial to understanding what people feel. Senzemo’s LoRaWAN micro-sensors fill that gap, they provide continuous, weather-resistant, pinpoint readings across urban landscapes

 

 

From Data to Action: Cooling Cities Intelligently

With detailed sensor data, city planners can:

  • Identify urban “hot spots”
  • Optimize green infrastructure like parks, green roofs, and tree corridors
  • Manage irrigation efficiently via soil moisture and rainfall insights
  • Adjust HVAC systems and cooling centers dynamically
  • Issue public health warnings ahead of heatwaves

Green infrastructure and reflective materials further improve cooling through shade and moisture released by plants.

Senzemo sensors are proudly designed and assembled in Slovenia, leveraging EU-made quality for long-lasting, low-maintenance field performance

 

 

Visual presentation of a Urban heat map

Bringing It Home: Slovenia Covered

All major Slovenian cities are now equipped with microclimate sensors. This deployment means Slovenians across Ljubljana, Maribor, Celje, Kranj, Novo Mesto, and more can benefit from:

  • Live air, heat index, and humidity monitoring
  • Early warnings for heat stress and public health advisories
  • Data-driven urban planning and smarter cooling solutions

 

 

Microclimate sensor in Celje

 

Heat Map online ⬇️⬇️

 

Additionaly, Senzemo also partners with Meteoblue to create Heatmaps based on real time sensor data. These maps visually show temperature and humidity variations across cities, helping planners and citizens quickly spot hot zones, monitor conditions, and make data-driven decisions for cooling and safety.