# Istanbul coastal swimming bans

> Live situation record from CLSTR: https://clstr.news/situations/istanbul-coastal-swimming-bans
> Updated: 2026-09-08T17:41:00.000Z. Sources: 9. Developments: 2.

Local authorities in three Istanbul districts along the Black Sea coast—Beykoz, Sarıyer, and Şile—have issued temporary swimming bans. The restrictions were implemented due to adverse meteorological conditions and high wave heights that pose a threat to life safety. The bans are scheduled to remain in effect for two days, specifically on September 9 and 10, 2026.

## Timeline

### 2026-09-08: Istanbul districts ban swimming due to high waves

Swimming is temporarily banned in Istanbul's Beykoz, Sarıyer, and Şile districts on September 9-10, 2026, due to high waves and dangerous meteorological conditions.

7 sources. https://clstr.news/cluster/istanbul-districts-ban-swimming-due-to-high-waves

### 2026-08-27: Yeşilköy beaches face swimming bans due to Marmara Sea pollution

Pollution and illegal wastewater discharge have triggered swimming bans at Yeşilköy beaches in Istanbul, prompting health warnings and ongoing water quality monitoring by Turkish authorities.

2 sources. https://clstr.news/cluster/yeilky-beaches-face-swimming-bans-due-to-marmara-sea-pollution

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Cite as: Istanbul coastal swimming bans. CLSTR, https://clstr.news/situations/istanbul-coastal-swimming-bans