Semuc Champey weather in August
August in Semuc Champey: sweltering, soaked, with clean air — fine if you can take 26 rainy days.
Updated September 2026 · climate normals from ERA5 reanalysis
#6 of 12 months in Semuc Champey · #998 of 1413 destinations to visit in August · comfort 66/100 (tier C)
- Days
- 29°C
- Nights
- 23°C
- Wet days
- 26
- Sun
- 10.6 h
- Humidity
- 87%
- Daylight
- 13 h

Traveller notes on Semuc Champey in August
Semuc Champey's forum describes August as genuinely rainy - two or three downpours a day isn't unusual by late summer - but posters were clear it's still less wet than the true peak in September, when access roads can turn genuinely difficult. The typical pattern is a clear morning that gives way to afternoon or evening rain, with streets flooding for an hour or two before draining, rather than a lost day. Forecasts showing nonstop rain for the whole trip are common and, according to regulars, usually don't match what actually happens on the ground.
Other months in Semuc Champey
Semuc Champey-forum threads on the wetter months describe real heavy rain as capable of turning the famous turquoise pools brown, posters calling this outcome uncommon but genuinely possible after a serious system moves through. Regulars call the drier season broadly November or December through April the more reliable stretch for clearer water, May sitting right at the edge of that window. Posters describe the approach road from Lanquin as rough regardless of season, real 4x4 capability recommended given how poor conditions get after rain. Regulars call swimming in the pools the clear highlight whenever water clarity cooperates, checking recent conditions with a local guide worth doing. Posters recommend real waterproof gear and flexible plans given how quickly conditions shift. Regulars call the setting worth visiting regardless of exact water color. The record: 31.7C days feeling like a punishing 38C, 22.9C nights, 146.9mm across 18 days and 79 percent humidity.
Semuc Champey-forum threads on planning a Guatemala trip in April and May call this broadly still within the favored dry season, posters describing the stretch from November or December through April as genuinely the best window for clear water and reliable views at the pools. Regulars call the approach road from Lanquin rough regardless of season, real 4x4 capability recommended even in drier months. Posters describe daytime heat as considerable this time of year, humidity adding to how strenuous the walk between viewpoints can feel. Regulars recommend an early start to beat both the heat and any crowds at the main pools. Posters call swimming in the turquoise pools the clear highlight regardless of exactly which April week you visit. Regulars recommend real sun protection and hydration given how strong the midday sun runs here. The record: 30.4C days feeling like a punishing 36C, 21.1C nights, 89.6mm across over 12 days and 79 percent humidity.
Semuc Champey-forum threads on seasonal conditions call the broader November-through-April stretch the real favored window, posters citing sunny, warm visits with the turquoise pools looking their best. Regulars call the road from Lanquin genuinely rough regardless of season, a real 4x4 recommended especially after any recent system. Posters describe heavier months like July and September as bringing genuinely muddy, brown water and slippery trails, a real contrast to the clearer pools this favored stretch typically delivers. Regulars recommend real caution on the approach road after a system. Posters call the natural pools worth the trip regardless of timing, though regulars are consistent the favored months offer a genuinely better shot at the classic turquoise water. Regulars recommend checking recent trip reports first. The record: 25.3C days feeling like 29C, 18.6C nights, an extraordinarily high 145.2mm across nearly 17 days and 89 percent humidity.
Semuc Champey-forum threads on late-August-into-September conditions are direct this sits at the height of the rainy season, real showers likely in the afternoon and evening, though mornings are still described as generally pleasant. Posters call the access road genuinely rough this time of year, one of the wetter months making the unpaved approach notably harder than in the drier stretch of the year. Regulars describe the pools as capable of turning a cloudier, murkier color after a heavy spell of rain, a real contrast to the vivid turquoise seen in photos from drier months. Posters call the surrounding jungle especially green and lush as a real upside of visiting this wetter window. Regulars recommend building flexibility into any itinerary and confirming with transport operators, who generally keep running despite conditions. The record: a punishing 29.3C by day feeling like 36C, 22.5C nights, an extraordinarily high 228mm across nearly 28 days and 89 percent humidity.
Add your own note from Semuc Champey's card on the map.
Semuc Champey climate normals — August
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Semuc Champey in August
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonschool holidays in 3 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Semuc Champey's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherSemuc Champey's weather peaks January–March, best around February.
Best weatherFair weatherToughest weather
What's on in Semuc Champey in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Brown water after the rains
1 Jun – 31 Oct · usuallyHigh waterRiskAfter a heavy night the turquoise the place is famous for goes the colour of the runoff, and a big rise on the Cahabon can shut the monument for a day or two. It clears within a day of the rain stopping. Source ↗
Nearby, and something's on
Within 300 km of Semuc Champey — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Semuc Champey?
Semuc Champey in August — FAQ
- Is August a good time to visit Semuc Champey?
- August in Semuc Champey: sweltering, soaked, with clean air — fine if you can take 26 rainy days. It ranks #6 of 12 months for Semuc Champey on SeasonMap's comfort score (66/100).
- What is the weather like in Semuc Champey in August?
- In August, Semuc Champey averages a daily high of 29.4°C and a low of 22.5°C, with about 175.5 mm of rain over roughly 25.7 rainy days.
- What is the air quality in Semuc Champey in August?
- Semuc Champey has a mean US Air Quality Index of about 31 in August.
Within 300 km: Lake Atitlán's Feast of the Assumption at Solola around 7–16 Aug, and Antigua Guatemala's Canícula, the midsummer dry spell around 1 Jul – 20 Aug.