Middle of the wetter season · Weather & things to do
Tulum in September
Little changes in Tulum from August: highs stay near 85°F (29°C), lows near 79°F (26°C), and about 7.3 in (185 mm) of rain falls.
With a comfort score of 51/100 (12th of 12), it's one of the toughest months, held back mainly by humidity.
- Avg high
- 85°F (29°C)
- Avg low
- 79°F (26°C)
- Rain
- 7.3 in (185 mm)
- Humidity
- 86%
- Cloud cover
- 59%
- Daylight
- ~12 h 07 min
- Comfort score
- 51/100 · Fair
What September feels like
Highs settle around 85°F (29°C), warm enough for short sleeves.
Even at night it stays warm, around 79°F (26°C).
With 86% average humidity, it feels muggy.
Expect regular rain: about 7.3 in (185 mm) falls in the month.
Plan around September
September is one of the lower-scoring months here; the best are January – April.
- Inside the wettest three-month stretch, August – October.
- Comfort slips from 58/100 in August to 51/100.
- Our Tulum & Riviera Maya route recommends Dec – Apr, so September falls outside its suggested window.
What to pack for September
- Light, breathable clotheshighs average 85°F
- Sunscreen, sunglasses and a hathigh UV on clear days
- Quick-dry fabrics86% average humidity
- Rain jacket and waterproof shoes7.3 in of rain on average
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Tulum in September
With 7.3 in of rain, these picks lean toward food, drink and places with a roof, with outdoor options when the weather breaks.
Batey Mojito & Guarapo Bar
Town bar making mojitos with fresh-pressed sugarcane juice and live music.
Why now A sit-down stop to wait out showers in a month with 7.3 in of rain.
Taquería Honorio
Yucatecan breakfast tacos like cochinita pibil.
Why now Easy to slot in when September's rain moves in.
Cobá
Maya city in the jungle with a big pyramid and bike paths.
Community Tours Sian Ka'an
Mayan community-run tours floating through ancient canals at Muyil.
Cenote Dos Ojos
Connected cenotes famous for snorkeling and cave diving.
Nearby in September
- Playa del Carmen in September~38 mi · highs 85°F, 6.7 in rain · similar daytime temperatures, drier
- Bacalar in September~122 mi · highs 86°F, 6.8 in rain · similar daytime temperatures, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Tulum in September: quick answers
Is September a good time to visit Tulum?
It's one of the tougher months here, scoring 51/100, held back mainly by humidity. The best months are January – April. Expect highs of 85°F (29°C) and 7.3 in (185 mm) of rain. Our Tulum & Riviera Maya route recommends Dec – Apr, so September is outside its suggested window.
How hot is Tulum in September?
Average highs are 85°F (29°C) and average lows 79°F (26°C), making it the 6th-warmest month by daytime highs.
Does it rain a lot in Tulum in September?
Yes: about 7.3 in (185 mm) of rain falls across September on average, the 2nd-wettest month of the year. The annual total is about 50.9 in (1293 mm).
What should I pack for Tulum in September?
Bring light, breathable clothes (highs average 85°F), sunscreen, sunglasses and a hat (high UV on clear days), quick-dry fabrics (86% average humidity), rain jacket and waterproof shoes (7.3 in of rain on average) and comfortable walking shoes (most places below are best reached on foot or with short walks).
Planning Tulum in September?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.