Isfahan weather in September
September in Isfahan: hot, dry — an excellent time to visit.
#4 of 12 months in Isfahan · #166 of 604 destinations to visit in September · comfort 86/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Isfahan climate normals — September
| Daytime high | 32°C / 90°F | 🥵 hot |
|---|---|---|
| Nighttime low | 16°C / 62°F | |
| Feels like (high) | 30°C / 86°F | |
| Rainfall | 0 mm / 0 in | ☀️ dry |
| Rainy days | 0 days | |
| Humidity | 18% | 🌵 dry |
| Dew point | -2°C / 28°F | |
| Sunshine | 11.1 h/day | |
| Daylight | 12.4 h | |
| Wind | 12 km/h / 8 mph | |
| Air quality (US AQI) | 76 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Isfahan in September — FAQ
- Is September a good time to visit Isfahan?
- September in Isfahan: hot, dry — an excellent time to visit. It ranks #4 of 12 months for Isfahan on SeasonMap's comfort score (86/100).
- What is the weather like in Isfahan in September?
- In September, Isfahan averages a daily high of 32.1°C and a low of 16.4°C, with about 0.1 mm of rain over roughly 0 rainy days.
- What is the air quality in Isfahan in September?
- Isfahan has a mean US Air Quality Index of about 76 in September.