Saturday, September 15, 2018 Sunday, September 15, 2019 Tuesday, September 15, 2020 Wednesday, September 15, 2021 Thursday, September 15, 2022 Friday, September 15, 2023 Sunday, September 15, 2024 Monday, September 15, 2025 Tuesday, September 15, 2026 Wednesday, September 15, 2027 Friday, September 15, 2028 Saturday, September 15, 2029 Sunday, September 15, 2030 Monday, September 15, 2031 International Coastal Clean-up Day
