September · Mexico
Best time to visit Tulum in September Weather, crowds & prices
Weather in Tulum in September
Average temperature 28°C, 164 mm of rain, about 23 days with 6+ hours of sunshine and 88% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
7.5/10
Ranked #7 of 12 months
- Avg temp
- 28°C
- Rainfall
- 164 mm
- Humidity
- 88%
- Days with 6h+ sun
- 23
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Tulum scores 7.5/10 for beach and coastal travel - ranked #7 of 12. Expect around 28°C, 164 mm of rain, and roughly 23 days with 6+ hours of sunshine this month.
Cliff ruins and cenote swims peak in the dry winter months of January through March.
September in Tulum — reliably good (7th best month)
Days in September average 28°C (83°F) and humidity near 88% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
164 mm of rain makes this a wet month here, though with about 23 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 7.5/10 on the same scale — 7th of 12 months, versus 9.6/10 for the best month here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Budget for low-season pricing, and crowds are light for this destination.
If your dates are flexible, May is materially better in Tulum — 2.1 points higher on the same scale.
Frequently asked
- What is the weather like in Tulum in September?
- In September, Tulum averages 28°C, 164 mm of rain, and about 23 days with 6+ hours of sunshine. Its climate-comfort score is 7.5/10.
- Is September a good time to visit Tulum?
- September earns a 7.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Tulum in September?
- Expect about 164 mm of rain in September. Average humidity is 88% and there are about 23 days with 6+ hours of sunshine.
Curated in Tulum
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Tulum, Mexico. Live activities and tours from GetYourGuide, matched to this destination.