September 16 Holidays & Observances
4 holidays observed on September 16 in the 2026–2030 window.
Floating holidays on September 16
These observances only land on September 16 in certain years.
| Holiday | 2026 | 2027 | 2028 | 2029 | 2030 |
|---|---|---|---|---|---|
| International Red Panda Day | — | — | Sep 16 · Sat | — | — |
View all September holidays
See every observance across September in one monthly calendar.
September calendar →September 16 — quick answers
- How many holidays fall on September 16?
- In the 2026–2030 window, 4 holidays and observance fall on September 16: Mexican Independence Day, National Guacamole Day, International Day for the Preservation of the Ozone Layer, International Red Panda Day.
- What is celebrated on September 16?
- September 16 is home to Mexican Independence Day, National Guacamole Day, International Day for the Preservation of the Ozone Layer and other observances. Each one has its own page with history and a live countdown.
- Are any September 16 holidays public holidays?
- None of the observances on September 16 are US federal holidays; they are celebrated informally by people, brands and communities.