Lima weather in September
September in Lima: nice, dry, with clean air — an excellent time to visit.
#6 of 12 months in Lima · #46 of 604 destinations to visit in September · comfort 91/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Lima climate normals — September
| Daytime high | 21°C / 70°F | 😎 nice |
|---|---|---|
| Nighttime low | 16°C / 60°F | |
| Feels like (high) | 22°C / 72°F | |
| Rainfall | 3 mm / 0.1 in | ☀️ dry |
| Rainy days | 0 days | |
| Humidity | 76% | 💦 very humid |
| Dew point | 14°C / 57°F | |
| Sunshine | 11.1 h/day | |
| Daylight | 12 h | |
| Wind | 14 km/h / 9 mph | |
| Air quality (US AQI) | 47 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Lima in September — FAQ
- Is September a good time to visit Lima?
- September in Lima: nice, dry, with clean air — an excellent time to visit. It ranks #6 of 12 months for Lima on SeasonMap's comfort score (91/100).
- What is the weather like in Lima in September?
- In September, Lima averages a daily high of 21°C and a low of 15.7°C, with about 3.3 mm of rain over roughly 0.4 rainy days.
- What is the air quality in Lima in September?
- Lima has a mean US Air Quality Index of about 47 in September.