May in Tulum means heat and few people: 91 °F highs, an 82 °F sea and the rainy season arriving in the second half of the month (the chance of a wet day goes from 16% to 42%). It's also when turtle nesting season begins. We write this from downtown Tulum, where we rent our apartment, using Weather Spark's averages.
What is the weather like in Tulum in May?
The typical high holds around 91 °F (33 °C) all month and the low rises from 68 to 70 °F (20-21 °C). The big change is rain: the chance of a wet day goes from 16% to 42% and rainfall from about 2.0 to 4.9 inches. Muggy days reach 99% by month's end.
| Metric | Start of month | End of month |
|---|---|---|
| Typical high | ~91 °F (33 °C) | ~91 °F (33 °C) |
| Early-morning low | ~68 °F (20 °C) | ~70 °F (21 °C) |
| Chance of a wet day | ~16% | ~42% |
| Muggy days | ~87% | ~99% |
| Daylight | 12 h 53 min | 13 h 16 min |
| Sea temperature | ~82 °F (28 °C) | ~82 °F (28 °C) |
Source: Weather Spark historical averages for Tulum. Averages, not a forecast.
If you can choose, the first half of May is drier than the second. For the heat, follow April's plan more strictly: activities before 11 a.m. and a cenote or pool at midday.
Is there sargassum in Tulum in May?
May falls within the Mexican Caribbean's peak sargassum season, which usually runs from April or May to August. It's the month when a cenote-and-pool plan B matters most. The page we keep current, with the latest University of South Florida bulletin and how to check a beach before you go, is sargassum in Tulum: season and plan B.
Dates that move Tulum in May 2027
- Saturday, May 1: Labor Day. A mandatory day off in Mexico, but in 2027 it falls on a Saturday, so there's no long weekend.
- From May: turtle nesting. Nesting season in Tulum runs May to November; hatchling releases start in July.
- May 29-31: Memorial Day weekend. The last Monday of May 2027 is May 31, a long weekend for US travelers.
Which May weeks to book
May is low season. May 1-15 is drier; from the 16th the rains arrive and occupancy drops further. Memorial Day weekend brings some US travelers.
| Dates | Vibe | Best for |
|---|---|---|
| May 1 - 15 | Quiet and drier | Beach and calm |
| May 16 - 28 | Very quiet, rains begin | Long stays and remote work |
| May 29 - 31 | Memorial Day weekend | US travelers |
Things to do in Tulum in May
Ruins first thing
The Tulum archaeological site opens 8:00 a.m. to 5:00 p.m., last entry 3:30 p.m. Since the federal decree of July 20, 2026, foreigners pay 265 pesos in total (Jaguar Park plus the site) and Mexican nationals 80 pesos Monday to Saturday, free on Sundays. It's about 10 minutes by bike from downtown. Details: our Tulum ruins guide.
Cenotes for the heat
At 91 °F, 75-78 °F cenote water is the best part of the day. Gran Cenote and Calavera are 8-12 minutes by car: the best cenotes near Tulum.
Akumal
For snorkeling with sea turtles, Akumal is 25 to 30 minutes away: Akumal from Tulum.
Getting to Tulum in May
Several US routes to Tulum airport (TQO) are winter-seasonal, running roughly November to April; outside that window there are fewer direct flights, so always compare with Cancún. Cancún is 1 h 45 min away by road. From Tulum airport to downtown is about 30 minutes; Uber and Didi don't operate normally and taxi fares are agreed before you get in. Options: Tulum airport to downtown.
Where to stay in Tulum in May
In May, air conditioning and a pool stop being luxuries. Downtown gives you both close to everything, and seaweed on the beach doesn't cost you the day.
Hacienda Tuk is a 2-bedroom apartment in downtown Tulum, inside the Tuk Tulum complex, with the building's shared pool, a rooftop, air-conditioned bedrooms and a full kitchen. Booking direct, the reference rate is from 85 USD per night (about 1,500 MXN), 10% below the lowest Airbnb price on October 8, 2026; the host confirms the exact rate for your dates. To book, pick dates on the apartment page calendar, see the estimate and send the request directly on the website, with no platform fee. Nothing is charged before confirmation, which usually arrives within 24 hours.
Frequently Asked Questions
Is May a good time to visit Tulum?
It's low season: few people and an 82 °F sea. The downsides are heat (91 °F), daily mugginess, rains arriving in the second half and peak sargassum season.
Does it rain a lot in Tulum in May?
Increasingly: the chance of a wet day climbs from 16% to 42% over the month. The first half is the driest.
Are there turtles in Tulum in May?
Nesting season begins, running May to November. Hatchling releases happen July to November.
Is there seaweed in Tulum in May?
May falls in peak sargassum season. Check reports from the week before and keep cenotes and a pool as plan B.
How do I book the apartment for May?
On the apartment page, choose dates on the calendar, see the estimate and send the request directly on the website. Nothing is charged until the host confirms.