May · Mexico
Best time to visit Sumidero Canyon in May Weather, crowds & prices
Weather in Sumidero Canyon in May
Average temperature 25°C, 72 mm of rain, about 28 days with 6+ hours of sunshine and 69% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
7.6/10
Ranked #3 of 12 months
- Avg temp
- 25°C
- Rainfall
- 72 mm
- Humidity
- 69%
- Days with 6h+ sun
- 28
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
May in Sumidero Canyon scores 7.6/10 for nature and wildlife travel - one of the top 12-month picks (#3). Expect around 25°C, 72 mm of rain, and roughly 28 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.
May holds up well in Sumidero Canyon — 3rd best month
Trail conditions at 25°C (77°F) favour early starts and shaded routes in May; midday is for water breaks, not for exposed climbs.
Budget for roughly 72 mm of rain this month — a flexible day or two helps — with about 28 days with 6+ hours of sunshine and 12.8 hours of daylight to work around it.
That is 7.6/10 on the same scale — 3rd of 12 months, versus 9.2/10 for the best month here.
Pack light clothing, a hat and real sun protection, a packable rain layer, 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 — 1.6 points higher on the same scale.
Frequently asked
- What is the weather like in Sumidero Canyon in May?
- In May, Sumidero Canyon averages 25°C, 72 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 7.6/10.
- Is May a good time to visit Sumidero Canyon?
- May earns a 7.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Sumidero Canyon in May?
- Expect about 72 mm of rain in May. Average humidity is 69% and there are about 28 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.