Copán (Copán Ruinas) weather in September

September in Copán: hot, soaked, with clean air — a gamble, with 28 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Copán🇭🇳 Honduras · Northern Central America · City56
  1. 88Jan
  2. 89Feb
  3. 83Mar
  4. 78Apr
  5. 65May
  6. 54Jun
  7. 69Jul
  8. 64Aug
  9. 56Sep
  10. 68Oct
  11. 79Nov
  12. 85Dec

#11 of 12 months in Copán · #1193 of 1413 destinations to visit in September · comfort 56/100 (tier D)

Days
28°C
Nights
21°C
Wet days
28
Sun
9.5 h
Humidity
89%
Daylight
12 h
Copán, Honduras
Photo: Adalberto Hernandez Vega from Copan Ruinas, Hond · CC BY 2.0

Traveller notes on Copán in September

Notes from nearby Semuc Champey (121 km away)

Copán doesn't have its own notes for September yet — these are about Semuc Champey, close enough to share the season.

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.
SemucChampeySeptemberRegular · September · 1 month ago · about Semuc Champey · Read more on Tripadvisor ↗

Other months in Copán

Copán Ruinas forum posters are consistent that July, though squarely in the rainy season, doesn't mean a lost day: mornings are usually clear and pleasant for touring the ruins, with the rain typically arriving as a dramatic hour-or-two downpour in the late afternoon or evening. One traveler specifically said full-day rain or drizzle was rare during their visit. The advice that comes up again and again is to plan ruins-and-outdoor time for the morning and treat the afternoon storm as a good excuse for a long lunch, since it genuinely shouldn't derail a trip.
MayaRuinsTraveler · July · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe November through March as a genuinely nice stretch here, with January - the coolest month of the year - still comfortably mild rather than cold, thanks to the town's highland setting keeping temperatures well short of the lowland heat found elsewhere in Honduras. Posters consistently recommend staying in Copan Ruinas town itself rather than the outskirts, calling it a pleasant, walkable base for exploring the nearby Maya ruins. One forum thread specifically discusses planning a January/February trip to Honduras as a winter escape, with posters framing this window as a reliable, comfortable choice for ruins-focused sightseeing.
Tripadvisor community · January · 1 month ago · Read more on Tripadvisor ↗

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

Copán climate normals — September

Daytime high28°C / 82°F🥵 hot
Nighttime low21°C / 69°F
Feels like (high)33°C / 91°F
Rainfall305 mm / 12 in⛈ soaked
Rainy days28 days
Humidity89%💦 very humid
Dew point21°C / 70°F
Sunshine9.5 h/day
Daylight12.2 h
Wind9 km/h / 6 mph
Air quality (US AQI)32🍃 good

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

Crowds in Copán in September

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.

BusyIndependence Day, school holidays in 2 of the markets that fill it(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Copán'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).

Toughest weatherCopán's weather peaks December–February.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in Copán in September

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

  • Holiday

    Independence Day

    14–15 SepNational holidayClosuresCrowded

    School bands practise for weeks and then march through Copán Ruinas on the fifteenth. Banks and offices shut and the buses run to a holiday timetable either side of it. Source ↗

  • Season

    Wet season

    MonsoonRisk

    28 rainy days and about 305 mm in the month — the real kind of rainy season, not afternoon showers.

    from the climate normals

What's on around the world in September →

Nearby, and something's on

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

Where is Copán?

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Copán in September — FAQ

Is September a good time to visit Copán?
September in Copán: hot, soaked, with clean air — a gamble, with 28 rainy days. It ranks #11 of 12 months for Copán on SeasonMap's comfort score (56/100).
What is the weather like in Copán in September?
In September, Copán averages a daily high of 27.7°C and a low of 20.7°C, with about 304.5 mm of rain over roughly 27.7 rainy days.
What is the air quality in Copán in September?
Copán has a mean US Air Quality Index of about 32 in September.

Within 300 km: Antigua Guatemala's Independence Day on 14–15 Sep, and Lake Atitlán's Independence Day on 14–15 Sep.