Supplementary material for Dew Harvesting using a Radiative Cooling Textile Material .docx

The field evaluation of the dew harvesting system across 27 cycles demonstrated consistent performance trends influenced by environmental parameters such as relative humidity, temperature, wind speed, and sky clarity. Average nighttime temperatures ranged between 26.4 °C and 29 °C, with relative humidity typically exceeding 85%, creating favorable conditions for condensation. Optimal dew yields were associated with lower wind speeds (generally below 1.5 m/s) and moderate to high sky clarity, which enhanced radiative cooling efficiency. Peak hourly theoretical yields frequently occurred during the early morning hours (04:00–07:00) when temperatures were lowest and humidity highest. Notably, multiple cycles recorded individual hourly yields exceeding 30 mL, underscoring the system’s capacity under ideal microclimatic conditions.