Antigua Guatemala weather in August

August in Antigua Guatemala: hot, soaked, with muggy air — fine if you can take 23 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Antigua Guatemala🇬🇹 Guatemala · Northern Central America · City70
  1. 94Jan
  2. 91Feb
  3. 85Mar
  4. 78Apr
  5. 65May
  6. 58Jun
  7. 77Jul
  8. 70Aug
  9. 59Sep
  10. 68Oct
  11. 86Nov
  12. 93Dec

#8 of 12 months in Antigua Guatemala · #926 of 1413 destinations to visit in August · comfort 70/100 (tier B)

Days
26°C
Nights
18°C
Wet days
23
Sun
10 h
Humidity
79%
Daylight
13 h
Antigua Guatemala, Guatemala
Photo: Mario Spencer · Pexels

Traveller notes on Antigua Guatemala in August

Notes from nearby Panajachel (50 km away)

Antigua Guatemala doesn't have its own notes for August yet — these are about Panajachel, close enough to share the season.

Lake Atitlán/Panajachel forum threads describe August as a genuine mixed bag - some stretches bring very little rain for weeks, other times it rains most afternoons for an hour or two, with tropical-storm-driven multi-day rain the real exception rather than the norm. The typical daily pattern posters described: gorgeous mornings, then a chance of rain arriving after around 2pm, sometimes hard but usually brief. Crucially, several regulars pointed out it's never oppressively hot here even in the rainy season, since the lake's highland elevation keeps temperatures moderate regardless of rainfall - a rain jacket was the standard packing tip rather than heat gear.
LakeAtitlanRegular · August · 1 month ago · about Panajachel · Read more on Tripadvisor ↗

Other months in Antigua Guatemala

Regulars are specific this highland city at roughly 5,200 feet enjoys what's locally called an eternal spring climate, late April marking the very beginning of the rainy season with genuinely wide variability - some years bringing no rain at all through the month, others bringing a lot. Our row backs that mild, genuinely wet read, 27.9C reading as a hot 30C, over 17.8C nights feeling 19C, with a substantial 98.8mm of rain across 17.9 days and humidity at 67 percent. Regulars are consistent daytime highs commonly cited around 26C with nights in the high teens, comfortable enough that heavy layers aren't needed even as the rainy season approaches. Air quality here can also be a real factor this time of year given regional burning season. The record: 11.3 hours of sun, an 8.7 kph wind and AQI 88.
EternalSpringVariableRainyStart · April · 1 month ago · Read more on Tripadvisor ↗
Regulars call this a fantastic month, sunny and warm by day with genuinely cool to cold nights as dry-season cold air masses reach the highlands - the wet season here runs May to October, placing March squarely in the dry, reliable half of the year. Our row backs both halves of that swing, 27.6C over 16.9C, with rain a minor presence at 30.5mm across 9.9 days. One caution some visitors raise for the back half of the month into April is poor visibility, a haze that settles over the highlands as the dry season wears on - agricultural burning is the usual cause across this region, worth knowing before planning a view-dependent day trip. The air quality column already shows the season's toll, AQI 81. The record: humidity 64 percent, 11.1 hours of sun and a 9.6 kph wind.
SunnyWarmDaysColdNightsLittleRain · March · 1 month ago · Read more on Tripadvisor ↗
November is the handover month and regulars put the line at its start: the rains are generally done by the beginning of November, so early in the month still carries a decent chance of one and late in the month barely any. What they value is the overlap - the dry season starting while the countryside is still lush from the rains just finished. They add that it can be windy and cool, and that the town's 5,000 feet of altitude is why the temperature barely moves across the year. Our row gives 24.9C over 16.8C with 60.1mm across 9 days. The figure to check is the air at AQI 73. The record: humidity 77 percent, 9.7 hours of sun and a 9.1 kph wind.
GreenFromTheRainsJustGone · November · 1 month ago · Read more on Tripadvisor ↗
January and February are the months regulars name for Antigua: good weather, not overrun, and rain maybe once or twice across a four or five week stay - our row gives 13.1mm across 3.8 precipitation days. The qualification is about sight rather than comfort. Three volcanoes stand over the town and only Fuego is active, but the view is never guaranteed: cloud rolls in even in the dry season and can lift again just as suddenly, and a storm is possible whatever the label says. What they do promise is that mornings are usually the gorgeous part, so plan the view and the Acatenango start early. Our 26.5C day over a 15.8C night is the altitude. The record: humidity 64 percent, 10.7 hours of sun, a 10.6 kph wind and AQI 66.
MorningsAreTheGorgeousPart · February · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Antigua Guatemala's card on the map.

Antigua Guatemala climate normals — August

Daytime high26°C / 79°F🥵 hot
Nighttime low18°C / 65°F
Feels like (high)29°C / 84°F
Rainfall213 mm / 8.4 in⛈ soaked
Rainy days23 days
Humidity79%💦 very humid
Dew point17°C / 63°F
Sunshine10 h/day
Daylight12.6 h
Wind7 km/h / 4 mph
Air quality (US AQI)72🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Antigua Guatemala 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)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Antigua Guatemala'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 weatherAntigua Guatemala's weather peaks December–February, best around January.

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Best weatherFair weatherToughest weather

What's on in Antigua Guatemala in August

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Canícula, the midsummer dry spell

    1 Jul – 20 Aug · usuallyDry season

    A few weeks in the middle of the rainy season when the afternoon storms ease off and skies clear, usually from early July into August. Its length varies a lot from year to year. Source ↗

  • Season

    Wet season

    MonsoonRisk

    23 rainy days and about 213 mm in the month — the real kind of rainy season, not afternoon showers.

    from the climate normals

What's on around the world in August →

Nearby, and something's on

Within 300 km of Antigua Guatemala — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Antigua Guatemala?

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Antigua Guatemala in August — FAQ

Is August a good time to visit Antigua Guatemala?
August in Antigua Guatemala: hot, soaked, with muggy air — fine if you can take 23 rainy days. It ranks #8 of 12 months for Antigua Guatemala on SeasonMap's comfort score (70/100).
What is the weather like in Antigua Guatemala in August?
In August, Antigua Guatemala averages a daily high of 26.3°C and a low of 18.2°C, with about 213.4 mm of rain over roughly 23.3 rainy days.
What is the air quality in Antigua Guatemala in August?
Antigua Guatemala has a mean US Air Quality Index of about 72 in August.

Within 300 km: Lake Atitlán's Feast of the Assumption at Solola around 7–16 Aug.