The intensifying heat and humidity are expected to severely impact data center operations, particularly in regions like Singapore, Northern Virginia, and the Pearl River Delta. These conditions not only reduce the efficiency of direct air-side free cooling but also increase the risk of hardware failures due to corrosion and moisture-related degradation. The study projects that the number of data centers facing significant operational constraints will rise, with Tier 3 facilities—those exceeding ambient limits for more than half the year—increasing by 9.1% per decade. This could lead to higher operational costs, increased energy consumption, and potential disruptions in digital infrastructure.