August · Mexico
Best time to visit Sumidero Canyon in August Weather, crowds & prices
Weather in Sumidero Canyon in August
Average temperature 23°C, 219 mm of rain, about 26 days with 6+ hours of sunshine and 86% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
6.8/10
Ranked #8 of 12 months
- Avg temp
- 23°C
- Rainfall
- 219 mm
- Humidity
- 86%
- Days with 6h+ sun
- 26
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
August in Sumidero Canyon scores 6.8/10 for nature and wildlife travel - ranked #8 of 12. Expect around 23°C, 219 mm of rain, and roughly 26 days with 6+ hours of sunshine this month.
Sumidero Canyon cuts sheer cliffs above the Grijalva-boat rides past waterfalls and canyon walls. Best window: the drier months outside peak monsoon.
August in Sumidero Canyon — workable with trade-offs
Trail conditions at 23°C (73°F) favour early starts and shaded routes in August; midday is for water breaks, not for exposed climbs.
This is the year's wettest stretch at 219 mm, but with about 26 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.
That is 6.8/10 on the same scale — 8th of 12 months, versus 9.2/10 for the best month here.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella, footwear you can get muddy.
Budget for mid-season pricing, and crowds are moderate.
If your dates are flexible, March is materially better in Sumidero Canyon — 2.4 points higher on the same scale.
Frequently asked
- What is the weather like in Sumidero Canyon in August?
- In August, Sumidero Canyon averages 23°C, 219 mm of rain, and about 26 days with 6+ hours of sunshine. Its climate-comfort score is 6.8/10.
- Is August a good time to visit Sumidero Canyon?
- August earns a 6.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Sumidero Canyon in August?
- Expect about 219 mm of rain in August. Average humidity is 86% and there are about 26 days with 6+ hours of sunshine.
Curated in Sumidero Canyon
Tickets & experiences
Things to do in Sumidero Canyon
Sumidero Canyon, Mexico. Live activities and tours from GetYourGuide, matched to this destination.