August 13 Holidays & Observances
1 holiday observed on August 13 in the 2026–2030 window.
View all August holidays
See every observance across August in one monthly calendar.
August calendar →August 13 — quick answers
- How many holidays fall on August 13?
- In the 2026–2030 window, 1 holiday and observance falls on August 13: International Left-Handers Day.
- What is celebrated on August 13?
- August 13 is home to International Left-Handers Day. Each one has its own page with history and a live countdown.
- Are any August 13 holidays public holidays?
- None of the observances on August 13 are US federal holidays; they are celebrated informally by people, brands and communities.