Can five degrees decide whether outdoor networks survive rising temperatures?

A five-degree shift in operating limits could affect where outdoor wireless access points can be reliably deployed as temperatures rise, according to TechRadar Pro Perspectives contributor Rosalie Bibona.

Outdoor wireless equipment has traditionally been designed to operate at temperatures up to 60°C, accounting for both outside heat and heat generated by the hardware. Some vendors are now lowering that limit to around 55°C. The five-degree difference may matter as access points become more powerful and densely packed.

Access points that once housed two radios now may contain three or four, with each additional radio adding heat. Future Wi-Fi 8 platforms are also expected to use more AI-assisted processing at the network edge, increasing demand for computing resources, memory and power. Direct sunlight can raise equipment temperatures beyond ambient conditions, adding to the thermal load.

Designing for higher temperatures, potentially closer to 70°C, may require industrial- or automotive-grade components. The source says these parts can cost more and may be less available globally. Cooling options also involve trade-offs: fans add moving parts, while larger heat sinks and liquid cooling increase size, weight or cost.

Bibona says a lower temperature ceiling can help vendors control costs, but may limit the climates and outdoor environments where equipment can be deployed reliably. The article advises organizations to consider sustained heat, solar exposure and other environmental stresses over equipment’s expected lifespan, alongside its stated performance specifications. The views are the author’s and are not necessarily those of TechRadar Pro or Future plc.