Bahia Chachacual is a Pacific bay within the Huatulco area, holding nine sites across cave, drift, reef, and wall types. Depths run from very shallow to thirty metres, and the mix of site styles suits both beginners and intermediate divers. All sites are boat-entry. Conditions vary: visibility can be affected by wind and river runoff, and some sites see moderate currents. Species recorded in our database include whale sharks, spotted eagle rays, whitetip reef sharks, green sea turtles, and a range of reef fish including tarpon, guineafowl puffer, and chameleon wrasse. Water temperatures are warm throughout the year.














Monthly water temperature across Bahia Chachacual's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water temperatures remain warm across all months, staying in the high twenties through winter and reaching their highest in the mid-summer to autumn period. Visibility is more reliable during the dry season when wind and river runoff are reduced.

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Water temperature around Bahia Chachacual ranges from about 27°C in February to 30°C in July, based on satellite sea-temperature data for its dive sites.
With water around 27–30°C, a rash guard or 3mm shorty works in Bahia Chachacual year-round.
Fin maps 9 sites in Bahia Chachacual (9 scuba diving sites and 1 snorkelling spots, with some suited to both).
Across Bahia Chachacual's dive sites, March, November and December are most often reported as the best months to visit.
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