international
World Water Monitoring Day
روز جهانی پایش آب
When: every year on 18 September (Gregorian).
Next date: Saturday 27 Shahrivar 1406 (18 September 2027)
An outreach programme that from 18 September encourages people to test and monitor the quality of local rivers, lakes and other water bodies.
World Water Monitoring Day in the years ahead
| Year | Date | Weekday | Gregorian |
|---|---|---|---|
| 1404 | 27 Shahrivar | Thursday | 18 September 2025 |
| 1405 | 27 Shahrivar | Friday | 18 September 2026 |
| 1406 | 27 Shahrivar | Saturday | 18 September 2027 |
| 1407 | 28 Shahrivar | Monday | 18 September 2028 |
| 1408 | 28 Shahrivar | Tuesday | 18 September 2029 |
| 1409 | 27 Shahrivar | Wednesday | 18 September 2030 |
| 1410 | 27 Shahrivar | Thursday | 18 September 2031 |