CHF to BYN exchange rate — September 2026 Open3.7870Close3.6770High3.8136Low3.6770Average3.7607Month change (open → close): -2.90%Daily breakdown (18)DateRate2026-09-013.7870Details2026-09-023.8001Details2026-09-033.7906Details2026-09-043.8136Details2026-09-053.8012Details2026-09-063.8013Details2026-09-073.8105Details2026-09-083.8031Details2026-09-093.8097Details2026-09-103.7845Details2026-09-113.7459Details2026-09-123.7210Details2026-09-133.7222Details2026-09-143.7304Details2026-09-153.7107Details2026-09-163.7013Details2026-09-173.6833Details2026-09-183.6770DetailsLive rate & chartDownload CSVAvailable daily data: 2026-03-06 – 2026-09-18 Currency guides All CHF rates All BYN rates BYN To CHF