September · Mexico
Best time to visit Hierve el Agua in September Weather, crowds & prices
Weather in Hierve el Agua in September
Average temperature 19°C, 235 mm of rain, about 19 days with 6+ hours of sunshine and 88% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
6.6/10
Ranked #12 of 12 months
- Avg temp
- 19°C
- Rainfall
- 235 mm
- Humidity
- 88%
- Days with 6h+ sun
- 19
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Hierve el Agua scores 6.6/10 for nature and wildlife travel - ranked #12 of 12. Expect around 19°C, 235 mm of rain, and roughly 19 days with 6+ hours of sunshine this month.
Hierve el Agua forms petrified waterfalls and cliff pools overlooking Oaxaca’s mountain valleys. Best window: late spring through early autumn.
September in Hierve el Agua: mixed conditions, plan around the weather
September averages 19°C (65°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
235 mm of rain puts this in monsoon territory — about 19 days with 6+ hours of sunshine across the whole month, and multi-day washouts are normal.
It scores 6.6/10 here, 12th of 12 months, against 9.9/10 in the destination's best month.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella, footwear you can get muddy.
Figure on low-season pricing, with crowds are light for this destination.
Flexible dates? April scores 3.3 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Hierve el Agua in September?
- In September, Hierve el Agua averages 19°C, 235 mm of rain, and about 19 days with 6+ hours of sunshine. Its climate-comfort score is 6.6/10.
- Is September a good time to visit Hierve el Agua?
- September earns a 6.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Hierve el Agua in September?
- Expect about 235 mm of rain in September. Average humidity is 88% and there are about 19 days with 6+ hours of sunshine.
Curated in Hierve el Agua
Tickets & experiences
Things to do in Hierve el Agua
Hierve el Agua, Mexico. Live activities and tours from GetYourGuide, matched to this destination.

