Yerevan weather in September
September in Yerevan: warm, dry, with clean air — one of the best months to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#1 of 12 months in Yerevan · #107 of 1413 destinations to visit in September · comfort 93/100 (tier S)
- Days
- 29°C
- Nights
- 13°C
- Wet days
- 1
- Sun
- 11.2 h
- Humidity
- 48%
- Daylight
- 13 h

Traveller notes on Yerevan in September
September is among the forum's favourite months in Armenia: pleasant, clear-skied, and harvest season. Yerevan runs near 27°C by day but drops to about 13 at night, and posters warn it can turn windy and cool after dark, so a jacket earns its place even in a warm month. Rain is possible but rare, barely a day across the month. Regulars specifically recommend the second half of September, when the open-air cafés and restaurants are still running late, and late September into early October for photography, when the air goes clear.
Other months in Yerevan
Forum posters describe March in Yerevan as genuinely unpredictable, sometimes behaving like real spring with heavy rain, other times turning cold and snowy - locals reportedly call it crazy March since almost anything can happen. Posters are consistent that the city itself usually stays snow-free by March, even though the surrounding highlands can hold snow until April, and consistently recommend warm coats, gloves and caps alongside versatile layers and boots just in case. Posters describe a genuine reward for a late-March visit specifically: apricot trees beginning to blossom and gardens coming into bloom around the city. Posters generally rate March as workable but weather-unpredictable, with mountain views of nearby peaks still reliably snow-capped regardless of what the city itself is doing.
Add your own note from Yerevan's card on the map.
Yerevan climate normals — September
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Yerevan 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.
Busyschool holidays in 3 of the markets that fill it, one of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Yerevan'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).
Best weatherYerevan's best weather comes in May, June and September — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
Nearby, and something's on
Within 300 km of Yerevan — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Yerevan?
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 (93/100).
- What is the weather like in Yerevan in September?
- In September, Yerevan averages a daily high of 28.8°C and a low of 12.9°C, with about 5.3 mm of rain over roughly 1.3 rainy days.
- What is the air quality in Yerevan in September?
- Yerevan has a mean US Air Quality Index of about 45 in September.
Within 300 km: Tbilisi's Rtveli, the grape harvest around 5 Sep – 20 Oct, and Gudauri's Alpine meadows and paragliding around 15 Jun – 15 Sep.