Arbaeen is a public holiday in Iran, known locally as اربعین حسینی.
In 2026 it falls on Tuesday 4 August; in 2027 on Sunday 25 July.
It follows the lunar calendar: the dates shown are estimates and may shift by a day once the moon is sighted.
Dates, 2025 to 2028
| Year | Date | Weekday | Note |
|---|---|---|---|
| 2025 | 14 August | Thursday | |
| 2026 | 4 August | Tuesday | |
| 2027 | 25 July | Sunday weekend | estimated date |
| 2028 | 14 July | Friday long weekend | estimated date |