SeasonMapChachapoyas weather in September
Peru
September in Chachapoyas: nice, rainy, with clean air — fine if you can take 25 rainy days.
#4 of 12 months in Chachapoyas · #357 of 1383 destinations to visit in September · comfort 87/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Chachapoyas in September
No notes yet. Open Chachapoyas on the map to add the first one.
Chachapoyas climate normals — September
| Daytime high | 20°C / 68°F | 😎 nice |
|---|---|---|
| Nighttime low | 11°C / 51°F | |
| Rainfall | 138 mm / 5.4 in | 🌧 rainy |
| Rainy days | 25 days | |
| Humidity | 75% | 💧 humid |
| Dew point | 10°C / 51°F | |
| Sunshine | 10.3 h/day | |
| Daylight | 12.1 h | |
| Wind | 9 km/h / 5 mph | |
| Air quality (US AQI) | 49 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Chachapoyas 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.
Shoulder seasonschool holidays in 2 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Chachapoyas'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 weatherChachapoyas's weather peaks June–August.
Best weatherFair weatherToughest weather
What's on in Chachapoyas in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Walking season for Kuélap and Gocta
1 May – 30 Sep · usuallyTrail seasonThe tracks to the ruined citadel and out to the Gocta falls turn to clay in the rains; between May and September they are walkable and the cloud lifts off the ridges for part of the day.
Where is Chachapoyas?
Chachapoyas in September — FAQ
- Is September a good time to visit Chachapoyas?
- September in Chachapoyas: nice, rainy, with clean air — fine if you can take 25 rainy days. It ranks #4 of 12 months for Chachapoyas on SeasonMap's comfort score (87/100).
- What is the weather like in Chachapoyas in September?
- In September, Chachapoyas averages a daily high of 20°C and a low of 10.6°C, with about 138 mm of rain over roughly 24.8 rainy days.
- What is the air quality in Chachapoyas in September?
- Chachapoyas has a mean US Air Quality Index of about 49 in September.