A solid choice — #12 of 31 Chiffon ranks #12 of 31 fabrics for excessive sweating. It is a good fabric for this. Ranked on breathability and moisture handling, penalised for weight. The top pick is Merino.
Chiffon measures 78/100 for breathability, 8% moisture regain, 20/100 warmth, at 50 gsm. For excessive sweating, high breathability and limited moisture absorption decide comfort — and its low warmth avoids trapping heat against the skin.