September in Tulum is wet and quiet: 87-89 °F highs, an 85 °F sea and rain on more than half the days (51% to 58%). It's the peak of hurricane season. We write this from downtown Tulum, where we rent our apartment, using Weather Spark's averages and NOAA climatology.
What is the weather like in Tulum in September?
The typical high eases from 89 °F (32 °C) to 87 °F (31 °C) and the low stays near 70 °F (21 °C). The chance of a wet day rises from 51% to 58% and rainfall from about 5.3 to 6.6 inches, the wettest stretch of the year. Every day is muggy and the sea reaches 85 °F (29 °C).
| Metric | Start of month | End of month |
|---|---|---|
| Typical high | ~89 °F (32 °C) | ~87 °F (31 °C) |
| Early-morning low | ~70 °F (21 °C) | ~70 °F (21 °C) |
| Chance of a wet day | ~51% | ~58% |
| Muggy days | ~100% | ~100% |
| Daylight | 12 h 31 min | 11 h 58 min |
| Sea temperature | ~85 °F (29 °C) | ~85 °F (29 °C) |
Source: Weather Spark historical averages for Tulum. Averages, not a forecast.
The climatological peak of Atlantic hurricane season is around September 10. That doesn't mean a hurricane will hit, only that it's the most likely time. If you travel in September: weather-cancellation insurance, flexible dates and official advisories in the days before.
Is there sargassum in Tulum in September?
In a typical year sargassum is declining by September. The University of South Florida bulletin dated September 30, 2026 saw amounts fall in every region except the western Caribbean, off Quintana Roo, where it held steady. 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 September 2027
- Friday, September 10: climatological hurricane peak. A statistical reference, not a forecast.
- Wednesday 15 and Thursday 16: Mexican Independence. The Grito is the night of the 15th and the 16th is a mandatory day off. In 2027 they fall midweek, so there's no long weekend, but the town celebrates.
- All month: turtle hatchling releases. Releases in Tulum run July to November.
Which September weeks to book
September is the quietest month of the year. If you choose it, keep dates flexible and don't hinge the trip on boat trips or a specific beach day.
| Dates | Vibe | Best for |
|---|---|---|
| Sep 1 - 14 | Very quiet, hurricane peak | Flexible travelers |
| Sep 15 - 16 | Mexican Independence | Local atmosphere |
| Sep 17 - 30 | Quietest stretch of the year | Remote work and long stays |
Things to do in Tulum in September
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 in the rain
A cenote is the plan of the month: no rain or waves underground, and the water is 75-78 °F. Gran Cenote and Calavera are 8-12 minutes away: the best cenotes near Tulum.
Getting to Tulum in September
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 September
In September, stay where a rainy day can still be a good day: downtown has cafés and restaurants within walking distance, a kitchen, a pool and Wi-Fi for work when the weather keeps you in.
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 September a good time to visit Tulum?
It's the quietest and usually cheapest month, with an 85 °F sea. The downsides: rain on more than half the days and the hurricane-season peak around September 10.
Are there hurricanes in Tulum in September?
September is the climatological peak of the season (around the 10th). Get cancellation insurance, keep dates flexible and follow official advisories.
Does it rain a lot in Tulum in September?
Yes: the chance of a wet day rises from 51% to 58%, with 5.3-6.6 inches over the month.
Is there a long weekend for Mexican Independence in 2027?
No: September 15 and 16 fall on Wednesday and Thursday. The 16th is a mandatory day off, but there's no long weekend.
How do I book the apartment for September?
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.