January in Sumidero Canyon — workable with trade-offs
Trade-offs · 6.8/10January 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.
At 142 mm this is a genuinely wet month: about 18 sunny days in total, and outdoor plans need an indoor fallback.
It scores 6.8/10 here, 7th of 12 months, against 9.2/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
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.
If your dates are flexible, March is materially better in Sumidero Canyon — 2.4 points higher on the same scale.
February in Sumidero Canyon — reliably good (4th best month)
Good · 7.4/10February 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.
At 136 mm this is a genuinely wet month: about 21 sunny days in total, and outdoor plans need an indoor fallback.
It scores 7.4/10 here, 4th of 12 months, against 9.2/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
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.
If your dates are flexible, March is materially better in Sumidero Canyon — 1.8 points higher on the same scale.
March in Sumidero Canyon — the year's strongest window
Best window · 9.2/10March averages 21°C (70°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Expect 43 mm of rain — occasional showers rather than washed-out days — alongside about 29 sunny days and 11.9 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Sumidero Canyon at 9.2/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, swimwear and real sun protection, footwear you can get muddy.
April in Sumidero Canyon — the year's strongest window
Best window · 8.9/10April averages 23°C (74°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rainfall runs 46 mm, so plan one flexible day in three; you still get about 30 sunny days and 12.4 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Sumidero Canyon at 8.9/10 — the reference point every other month on this page is measured against.
Expect mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection, a packable rain layer, footwear you can get muddy.
May in Sumidero Canyon — reliably good (3rd best month)
Good · 7.6/10May averages 25°C (77°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rainfall runs 72 mm, so plan one flexible day in three; you still get about 28 sunny days and 12.8 hours of daylight.
It scores 7.6/10 here, 3rd of 12 months, against 9.2/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection, a packable rain layer, footwear you can get muddy.
If your dates are flexible, March is materially better in Sumidero Canyon — 1.6 points higher on the same scale.
June in Sumidero Canyon — workable with trade-offs
Trade-offs · 6.5/10June averages 24°C (74°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
286 mm of rain puts this in monsoon territory — about 23 sunny days across the whole month, and multi-day washouts are normal.
It scores 6.5/10 here, 9th of 12 months, against 9.2/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, March is materially better in Sumidero Canyon — 2.7 points higher on the same scale.
July in Sumidero Canyon — workable with trade-offs
Trade-offs · 6.9/10July averages 23°C (73°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
209 mm of rain puts this in monsoon territory — about 26 sunny days across the whole month, and multi-day washouts are normal.
It scores 6.9/10 here, 6th of 12 months, against 9.2/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, March is materially better in Sumidero Canyon — 2.3 points higher on the same scale.
August in Sumidero Canyon — workable with trade-offs
Trade-offs · 6.8/10August averages 23°C (73°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
219 mm of rain puts this in monsoon territory — about 26 sunny days across the whole month, and multi-day washouts are normal.
It scores 6.8/10 here, 8th of 12 months, against 9.2/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, March is materially better in Sumidero Canyon — 2.4 points higher on the same scale.
September in Sumidero Canyon — workable with trade-offs
Trade-offs · 6.4/10September averages 22°C (72°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
302 mm of rain puts this in monsoon territory — about 20 sunny days across the whole month, and multi-day washouts are normal.
It scores 6.4/10 here, 10th of 12 months, against 9.2/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, March is materially better in Sumidero Canyon — 2.8 points higher on the same scale.
October in Sumidero Canyon — workable with trade-offs
Trade-offs · 5.9/10October averages 21°C (70°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
256 mm of rain puts this in monsoon territory — about 15 sunny days across the whole month, and multi-day washouts are normal.
It scores 5.9/10 here, 12th of 12 months, against 9.2/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, March is materially better in Sumidero Canyon — 3.3 points higher on the same scale.
November in Sumidero Canyon — workable with trade-offs
Trade-offs · 6.2/10November averages 20°C (68°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
At 166 mm this is a genuinely wet month: about 15 sunny days in total, and outdoor plans need an indoor fallback.
It scores 6.2/10 here, 11th of 12 months, against 9.2/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, March is materially better in Sumidero Canyon — 3 points higher on the same scale.
December in Sumidero Canyon — reliably good (5th best month)
Good · 7/10December 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.
At 102 mm this is a genuinely wet month: about 15 sunny days in total, and outdoor plans need an indoor fallback.
It scores 7/10 here, 5th of 12 months, against 9.2/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
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.
If your dates are flexible, March is materially better in Sumidero Canyon — 2.2 points higher on the same scale.
