Quick answer
The rainy season in Puerto Escondido —the so-called 'green season' or 'Green Season'— runs from June to October and, contrary to how it sounds, is one of the best times to visit in 2026: sunny mornings, brief afternoon downpours, nature at its greenest, and the lowest prices of the year. KORU RENT operates in Puerto Escondido today and delivers the car, the ATV (quad), or the jeep to where you're staying, with a contract, an invoice, and WhatsApp support, so the rain doesn't change your route.
Which months does the rainy season (the 'Green Season') cover in Puerto Escondido?
The rainy season, or green season, runs from June to October, though some sources extend it from late May to early November. September and October are, statistically, the wettest months: according to Weather Atlas, September is the wettest and most humid month of the year, with around 531 millimeters of rain spread over about twelve days and up to 79% humidity. October marks the transition out —rain drops to around 204 millimeters and the sunny hours return. The flip side: the sierra turns deep green, the lagoons fill up, prices fall to their lowest point of the year, and the town recovers its local rhythm.
Does it rain all day? Here's the real pattern
No. A typical day dawns sunny and clear, with high humidity; clouds build up in the afternoon and the downpour —torrential but brief— usually falls at dusk or before dawn. The next day the sky wakes up washed clean. The climate stays warm all year: in the rainy season highs hover around 29°C, lows around 23°C, and humidity moves between 70 and 80%, so you don't need any warm clothing at all. If you plan the important things in the morning, the rain almost never steals a plan from you.
Tip
Schedule the sea, the lagoons, and your routes before noon, and leave the afternoon for a long lunch, a traditional steam bath (temazcal), or a nap. The afternoon downpour is best enjoyed from a palapa, a palm-roofed shelter.
When is hurricane season on the Oaxaca coast?
The official Eastern Pacific tropical cyclone season —the basin that bathes the Oaxaca coast— runs from May 15 to November 30, according to Mexico's National Water Commission (CONAGUA) and the National Meteorological Service. The greatest risk is concentrated from August to October, which coincides with the peak of the rains. This doesn't mean a hurricane hits every week: the vast majority of green-season days are normal and sunny in the morning. But it's worth being clear about: monitor the forecast, and if a tropical storm is announced, follow the instructions of Civil Protection and stay off the highway, because the area's rivers rise fast.
Why is it worth coming in the green season (and renting a vehicle)?
Where and when can you see the bioluminescence?
The Manialtepec lagoon, about twenty to thirty minutes from downtown Puerto Escondido, is the main spot for seeing bioluminescence. The rainy season is, paradoxically, the best time: the rain washes in nutrients that multiply the dinoflagellates —the microorganisms that produce the blue flash—, as specialized guides like She Roams About note. It's best seen on a new-moon night, when the sky is darkest and the water is stirred by the boat or the paddle. Drive there on your own or arrange a boat tour; either way, having your own vehicle lets you head back on your own schedule.
Can you swim in summer? Groundswell and safe beaches
The so-called 'groundswell' (mar de fondo) is most frequent from May to November: these are waves of two to five meters generated by storms out at sea, and the episodes usually last 48 to 72 hours, according to Civil Protection and outlets like Eje Central. On the open coast, like Zicatela, the sea at this time is exclusive territory for professional surfers; respect the flags and the lifeguards, and don't go in if there's an alert. The good news: the closed bays —Carrizalillo, Puerto Angelito, Manzanillo— stay calm and suitable for any level even during a swell. And the water is warm: the sea temperature reaches around 30°C in summer. As for sargassum, the Pacific coast of Oaxaca is practically free of it all year —unlike the Mexican Caribbean— because this shoreline has no contact with the routes along which the seaweed travels from the Atlantic.
How do you get around in the rain? Why the scooter isn't your friend
The dirt streets of La Punta and the access roads to the outlying beaches turn into slippery mud and deep puddles when the downpour hits. A 150cc motorcycle or scooter is unstable in those conditions; a 4x4 jeep or an ATV (quad) turns the same road into part of the adventure. The rule is simple: drive by day, slow down, and never cross a ford with a current. KORU RENT delivers the vehicle to where you're staying or at the Puerto Escondido airport (PXM), with a contract and an invoice; you confirm the coverage, deposit, and price details directly with the team.
“The green season is Puerto Escondido unfiltered: greener, quieter, cheaper, and more yours. The rain doesn't cancel the trip; it just asks you to move with the right vehicle.”
— KORU RENT
See the KORU RENT fleet
Cars, ATVs (quads), and jeeps for the green season
KORU RENT in Puerto Escondido
Vehicle rental and delivery where you're staying
From Puerto Escondido to Mazunte, Zipolite, and Huatulco
The Oaxaca coast road trip by car
Frequently asked questions
It runs from June to October, though some sources extend it from late May to early November. September and October are the wettest: according to Weather Atlas, September averages around 531 millimeters over twelve days and up to 79% humidity, while October drops to around 204 millimeters with more hours of sun.
No. The typical pattern is sunny, clear mornings with high humidity, clouds building up in the afternoon, and torrential but brief downpours at dusk or before dawn. The next day the sky wakes up washed clean, so if you schedule the important things early, the rain almost never changes your plan.
The official Eastern Pacific cyclone season, which includes the Oaxaca coast, runs from May 15 to November 30 according to CONAGUA and the National Meteorological Service, with the greatest risk from August to October. Most days are normal and sunny in the morning; monitor the forecast and always heed Civil Protection.
The closed bays like Carrizalillo, Puerto Angelito, and Manzanillo stay calm and suitable for everyone, even during a swell. Zicatela, however, is only for professional surfers: waves usually measure three to four and a half meters, and occasionally exceed six during big swells. Respect flags, lifeguards, and Civil Protection.
The Pacific coast of Oaxaca is practically free of sargassum all year, unlike the Mexican Caribbean. The reason is geographic: this shoreline has no contact with the routes along which the seaweed travels from the Atlantic, according to Travel + Leisure. In the rainy season, though, the rivers do wash some sediment onto the coast.
The Manialtepec lagoon, about twenty to thirty minutes from downtown, is the main spot. The rainy season is the best time: the water washes in nutrients that multiply the dinoflagellates and boost the blue glow. It's best seen on a new-moon night, when the sky is darkest and the water is stirred up.
Coming in the green season? KORU RENT operates in Puerto Escondido today: message us on WhatsApp, tell us your plan and your dates, and we'll suggest the right vehicle —car, ATV (quad), or jeep— so the rain doesn't change your route. Book with a contract, an invoice, and delivery where you're staying or at the airport (PXM). KORU Team · Guide to the rainy season in Puerto Escondido · 2026