Yerevan weather in September
September in Yerevan: warm, dry, with clean air — one of the best months to visit.
#1 of 12 months in Yerevan · #7 of 604 destinations to visit in September · comfort 95/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Yerevan climate normals — September
| Daytime high | 27°C / 80°F | 🌤 warm |
|---|---|---|
| Nighttime low | 13°C / 56°F | |
| Feels like (high) | 25°C / 77°F | |
| Rainfall | 5 mm / 0.2 in | ☀️ dry |
| Rainy days | 1 days | |
| Humidity | 46% | 🍃 comfortable |
| Dew point | 7°C / 44°F | |
| Sunshine | 11.2 h/day | |
| Daylight | 12.4 h | |
| Wind | 11 km/h / 7 mph | |
| Air quality (US AQI) | 45 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Yerevan?
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Yerevan in September — FAQ
- Is September a good time to visit Yerevan?
- September in Yerevan: warm, dry, with clean air — one of the best months to visit. It ranks #1 of 12 months for Yerevan on SeasonMap's comfort score (95/100).
- What is the weather like in Yerevan in September?
- In September, Yerevan averages a daily high of 26.6°C and a low of 13.4°C, with about 4.7 mm of rain over roughly 1.2 rainy days.
- What is the air quality in Yerevan in September?
- Yerevan has a mean US Air Quality Index of about 45 in September.