Iquitos weather in September
September in Iquitos: hot, rainy, with very humid — fine if you can take 19 rainy days.
#4 of 12 months in Iquitos · #727 of 897 destinations to visit in September · comfort 66/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Iquitos in September
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Iquitos climate normals — September
| Daytime high | 32°C / 89°F | 🥵 hot |
|---|---|---|
| Nighttime low | 24°C / 74°F | |
| Rainfall | 149 mm / 5.9 in | 🌧 rainy |
| Rainy days | 19 days | |
| Humidity | 84% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 10 h/day | |
| Daylight | 12.1 h | |
| Wind | 7 km/h / 4 mph | |
| Air quality (US AQI) | 58 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Iquitos in September — FAQ
- Is September a good time to visit Iquitos?
- September in Iquitos: hot, rainy, with very humid — fine if you can take 19 rainy days. It ranks #4 of 12 months for Iquitos on SeasonMap's comfort score (66/100).
- What is the weather like in Iquitos in September?
- In September, Iquitos averages a daily high of 31.5°C and a low of 23.6°C, with about 149.4 mm of rain over roughly 18.6 rainy days.
- What is the air quality in Iquitos in September?
- Iquitos has a mean US Air Quality Index of about 58 in September.