What humidity range is specified for tropical climates?

What humidity range is specified for tropical climates?

• A. 40%-60%
• B. 60%-90%
• C. 20%-80%
• D. 0%-100% relative humidity

Answer: (D)

In tropical climates, the humidity level isn’t constrained to a single narrow band for design guidance. Outdoor relative humidity can vary widely with rain, temperature, and ventilation, so there isn’t a fixed, prescribed range. The only option that truly reflects this variability is the full 0% to 100% relative humidity, since it encompasses every possible humidity level that can occur. While indoor comfort targets often sit around mid-high humidity (for example, roughly 60–70%), the outdoor tropical climate itself can span the entire range, which is why 0–100% is the best answer.

In tropical climates, the humidity level isn’t constrained to a single narrow band for design guidance. Outdoor relative humidity can vary widely with rain, temperature, and ventilation, so there isn’t a fixed, prescribed range. The only option that truly reflects this variability is the full 0% to 100% relative humidity, since it encompasses every possible humidity level that can occur. While indoor comfort targets often sit around mid-high humidity (for example, roughly 60–70%), the outdoor tropical climate itself can span the entire range, which is why 0–100% is the best answer.