Does Ixtapa-Zihuatanejo Get Sargassum?

Guerrero / Costa Grande · Mexico

No — not a sargassum destination

Sargassum is an Atlantic and Caribbean problem, and Ixtapa-Zihuatanejo is on Mexico's Pacific coast. The hazards here are surf, rip currents and the summer hurricane season.

Sargassum in Ixtapa-Zihuatanejo by month

Jan

None

Feb

None

Mar

None

Apr

None

May

None

Jun

None

Jul

None

Aug

None

Sep

None

Oct

None

Nov

None

Dec

None

Clearest water

Year-round for sargassum (there is none). November through May is the dry season with the calmest, clearest water; June through October brings rain, humidity, runoff and the chance of a Pacific hurricane.

What to know before you book

•The Ixtapa hotel zone fronts Playa El Palmar, an open Pacific beach that lifeguards close with a black flag when swell builds - one 2021 closure cited rip currents, deep holes and waves over 1.5 metres. Zihuatanejo's bay beaches (La Ropa, Las Gatas, Madera) and Isla Ixtapa are far more sheltered for swimming.
•Cofepris did not list any Guerrero beach among the five it declared unfit for swimming before the summer 2026 holidays; the flagged beaches were in Baja California, Jalisco, Oaxaca and Veracruz.
•Brown seaweed occasionally washes up on Mexico's Pacific coast, but when researchers examined a large pile on a Nayarit beach it turned out to be a native Pacific macroalga (Hypnea), not Atlantic sargassum. Expect the same explanation for any algae you see here.

Last checked October 2, 2026 · Sources: El Imparcial, Jul 2026 (Cofepris summer 2026 beach water quality), Quadratin, Mar 2021 (black flag at Playa El Palmar, Ixtapa), PAX News (Nayarit seaweed identified as Hypnea, not sargassum), Islands.com, Jul 2026 (Ixtapa beaches)