When To Go · Destination Guide
Bahias De Huatulco Mexico
National-park reefs, calm bays, and whale season on Oaxaca's Pacific coast
Updated Jan 23, 2026 • 15 sources
When To Go
Season planner for Bahias de Huatulco
Huatulco is warm year-round, but planning is mainly about rain, swell, and crowd spikes. Dry season (roughly Nov to Apr) is the easiest window for consistent beach weather and clearer water. The rainy season (commonly Jun to Nov) brings greener hills and waterfall flow, plus a higher chance of afternoon showers and storm swell. East Pacific hurricane season officially runs May 15 to Nov 30, so summer and early fall deserve extra forecast watching.
At A Glance Heatmap
| Activity | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall | ||||||||||||
| Scuba | ||||||||||||
| Freedive | ||||||||||||
| Snorkel | ||||||||||||
| Topside |
Activity Drilldowns
OverallNov to Apr·Crowd:Moderate·Cost:Moderate
Ideal: Drier weather and the most reliable beach days. Water often sits around 26°C to 28°C.
Plan Carefully: Rainy season with afternoon showers and occasional storm swell. East Pacific hurricane season runs May 15 to Nov 30.
Peak demand usually clusters around late Dec to early Jan and Semana Santa (Mar or Apr).
ScubaNov to May·Crowd:Moderate·Cost:Moderate
Ideal: Calmer mornings and commonly clearer water. Visibility often trends toward 15 m to 25 m on good days.
Plan Carefully: More rain and runoff can reduce visibility toward 10 m. Choose sheltered bays and keep a flexible schedule around storms.
Humpback whales migrate along the coast between Oct and Apr.
FreediveDec to Apr·Crowd:Low·Cost:Value
Ideal: More consistent calm mornings for line work and bay sessions. Water often 26°C to 28°C.
Plan Carefully: Rainy season increases variability. Use a buoy and boat support where possible, and be ready to swap to topside plans.
Freediving is best when you can choose the calmest bay for the day.
SnorkelDec to Apr·Crowd:Moderate·Cost:Moderate
Ideal: Clearer water and calmer bays. Great for La Entrega and San Agustin, often in 1 m to 4 m depths.
Plan Carefully: Higher chance of rain, runoff, and swell. Switch to bay tours with protected swim stops or focus on beaches with lifeguards.
If rain has been heavy, prioritize snorkeling on the most protected side of a bay, and avoid rocky entries when surge is present.
TopsideNov to Apr·Crowd:Moderate·Cost:Moderate
Ideal: Dryer weather for hiking, ruins, and beach time, with warm days and cooler evenings.
Plan Carefully: Rainy season makes the landscape lush, but afternoon storms can disrupt long road trips. Build flexible itineraries.
June 14, 2026 is scheduled for the World Triathlon Cup Huatulco, which can affect accommodation availability that week.
Seasonal Callouts Timeline
Humpback whale migration and whale watching
JanJanFebFebMarMarAprAprMayMayJunJunJulJulAugAugSepSepOctOctNovNovDecDecHumpback whales migrate along the Oaxaca coast during this window. Book a dedicated whale-watch trip from Santa Cruz, and keep expectations realistic for in-water encounters.
Sea turtle nesting and hatchlings on the Oaxaca coast
JanJanFebFebMarMarAprAprMayMayJunJunJulJulAugAugSepSepOctOctNovNovDecDecOaxaca is famous for sea turtle conservation beaches. From Huatulco, day trips toward Mazunte or La Escobilla can align with nesting and hatchling activity.
World Triathlon Cup Huatulco
JanJanFebFebMarMarAprAprMayMayJunJunJulJulAugAugSepSepOctOctNovNovDecDecAn international triathlon event is scheduled in Huatulco on June 14, 2026, bringing athletes and spectators to the waterfront zones.
Green-season waterfalls and jungle rivers
JanJanFebFebMarMarAprAprMayMayJunJunJulJulAugAugSepSepOctOctNovNovDecDecWhen the rains arrive, inland waterfalls and river excursions become a standout, especially if ocean swell reduces snorkeling comfort.