SeasonMapAguas Calientes (Machu Picchu) weather in September
Peru
September in Aguas Calientes: nice, rainy, with clean air — fine if you can take 24 rainy days.
#5 of 12 months in Aguas Calientes · #406 of 1383 destinations to visit in September · comfort 86/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Aguas Calientes in September
Other months in Aguas Calientes
Aguas Calientes's forum calls July dry-season reliable — clear days for exploring, with regulars noting the town itself sees cool nights, typically 10-13°C year-round, rather than the harder freezes possible up at the ruins' higher elevation. Cold winds do sweep through some evenings, so a warm layer is worth having even though days are comfortable.
Add your own note from Aguas Calientes's card on the map.
Aguas Calientes climate normals — September
| Daytime high | 21°C / 69°F | 😎 nice |
|---|---|---|
| Nighttime low | 13°C / 55°F | |
| Feels like (high) | 23°C / 73°F | |
| Rainfall | 99 mm / 3.9 in | 🌧 rainy |
| Rainy days | 24 days | |
| Humidity | 84% | 💦 very humid |
| Dew point | 14°C / 56°F | |
| Sunshine | 10.6 h/day | |
| Daylight | 12 h | |
| Wind | 7 km/h / 4 mph | |
| Air quality (US AQI) | 41 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Aguas Calientes 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 Aguas Calientes'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 weatherAguas Calientes's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
What's on in Aguas Calientes in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Rule
Timed tickets and fixed circuits
1 Jan – 31 DecBook earlyEvery ticket names a circuit, a route and an entry hour, and you walk it one way from the gate above the town. Peak dates lift the daily cap to 5,600 and those slots go months ahead. Source ↗
Nearby, and something's on
Within 300 km of Aguas Calientes — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Aguas Calientes?
Aguas Calientes in September — FAQ
- Is September a good time to visit Aguas Calientes?
- September in Aguas Calientes: nice, rainy, with clean air — fine if you can take 24 rainy days. It ranks #5 of 12 months for Aguas Calientes on SeasonMap's comfort score (86/100).
- What is the weather like in Aguas Calientes in September?
- In September, Aguas Calientes averages a daily high of 20.8°C and a low of 12.8°C, with about 98.6 mm of rain over roughly 23.9 rainy days.
- What is the air quality in Aguas Calientes in September?
- Aguas Calientes has a mean US Air Quality Index of about 41 in September.
Other months in Aguas Calientes
Compare Aguas Calientes in September
Warmer or cooler than Aguas Calientes in September
Similar destinations in South America — September
Within 300 km: Ollantaytambo's Andean dry season around 1 May – 30 Sep, and Cusco's Andean dry season around 1 May – 30 Sep.