Fall in Yerevan really shakes things up after the long, dry summer. Average daytime highs start out in the low 30s °C in early September, but by late November, you’re looking at single digits. Nights? They can get close to freezing, so you’ll definitely notice the difference.
The skies start to cloud over as autumn rolls on, and the chance of rain creeps up, even if it’s still pretty modest. Daylight disappears fast—by November, you lose over three hours of sun compared to September. It’s a totally different vibe from those endless, bright summer days.
The air stays fairly dry, especially compared to spring. Humidity is low, so you get that crisp, fresh feeling instead of anything muggy. Gentle winds pick up, and Yerevan’s elevation gives the city a cool edge. If you’re thinking of exploring in autumn, you’ll want to juggle outdoor plans with the chillier evenings and early sunsets.
Overview of Yerevan’s Fall Climate
Yerevan’s fall weather changes fast, going from lingering summer heat to cold by late November. You’ll notice temperatures dropping, days getting shorter, and clouds rolling in, but rain doesn’t usually get out of hand like it does in spring.
Continental Semi-Arid Characteristics
Yerevan’s got a continental semi-arid climate, so you’ll deal with hot, dry summers and cold winters, with just moderate rain in between. Fall acts as the bridge between these extremes.
In September, daytime highs can still hit 31°C (88°F). By late November, you’ll see daily highs closer to 8°C (47°F). Nights drop off fast too, going from 16°C (61°F) down to below freezing.
Rainfall stays pretty limited. You’ll usually get around 12 mm of precipitation per month, most of it light rain. Snow isn’t common, but it sometimes shows up in late November. The air stays dry and crisp.
Wind speeds ease up a bit, from 8 km/h in September to 7 km/h in November. Early fall brings plenty of clear days, but as winter nears, the clouds move in.
Location and Elevation Impact
Yerevan sits about 994 meters (3,260 feet) up in the Ararat Valley, surrounded by mountains. That elevation really shapes the fall weather.
You’ll get cooler nights and bigger swings between day and night temperatures. Warm afternoons can turn into chilly evenings, so layering up is a smart move.
The valley keeps humidity low, so even when it cools off, the air doesn’t usually feel damp. The mountains sometimes block weather systems, so Yerevan gets less rain than other parts of Armenia.
The hills also play with the wind. Early in the season, winds blow from the east, but by late November, they flip to the west. These shifts can make temperatures jump around from week to week.
Comparison to Other Seasons
Fall in Yerevan stands out from both summer and winter. Summer days can blast past 30°C (86°F), while winter highs barely crawl above 0°C (32°F) and nights freeze often.
Spring brings the most rain, but fall stays drier. The odds of a rainy day rarely top 10%, while in May it’s more like 25%. Fall is usually clearer and more predictable.
Daylight drops off fast too. Early September gives you more than 13 hours of sunlight, but by late November, you’re down to about 9.5 hours. Sunsets come almost two hours earlier, making evenings feel colder and darker.
Compared to the heat of summer and the deep freeze of winter, fall is a quick, noticeable transition. You’ll feel the steady cooling, see clear skies early on, and spot the first signs of winter by the end.
Average Fall Temperatures in Yerevan
Temperatures in Yerevan drop off quickly in fall. Highs go from summer-like to chilly, and nights get cold enough for frost by November. The change is pretty obvious, with each month feeling different.
Monthly Temperature Trends
September still feels pretty warm—daytime highs sit near 88°F (31°C), and nights cool to about 62°F (17°C). It’s a great time for being outside.
By October, you’ll feel the difference. Highs drop to 70°F (21°C), and lows fall to 45°F (7°C). Evenings get cooler, so you’ll want a jacket.
November really brings the cold. Daytime highs average 47°F (8°C), and nights often hit 28°F (-2°C). Frost is common, and the growing season usually wraps up early.
So, in just three months, you go from late-summer warmth to early winter cold.
Daytime Highs and Nighttime Lows
There’s a big gap between daytime and nighttime temps. September afternoons can still push 90°F (32°C), but nights drop to the low 60s.
October afternoons usually land in the 60s to low 70s°F (16–22°C), with nights dipping into the 40s°F (5–9°C). You get crisp mornings and pleasant afternoons.
By November, nights often fall below freezing, with average lows near 28°F (-2°C). Highs rarely get past the upper 40s. You’ll need to be ready for chilly mornings and cool afternoons, especially if you’re out and about all day.
Historical Extremes
Averages help, but extremes matter too. Early fall can still surprise you with heat—sometimes highs go above 90°F (32–34°C) in September.
Late November can get really cold, with lows down in the teens Fahrenheit (-7°C to -10°C). These cold snaps can hit fast, especially overnight.
By late fall, you’re already brushing up against winter’s coldest days, which usually sit between 19°F and 37°F (-7°C to 3°C). The season can flip quickly, so it pays to check the forecast.
Rainfall and Precipitation Patterns
Autumn in Yerevan brings more rain than summer, but it’s still not a wet season. The rain patterns shift month to month, and they influence outdoor plans and the look of the city.
Monthly Rainfall Totals
Rainfall drops off as fall goes on. September usually gets 30–35 mm, October picks up to 40–45 mm, and November falls back to 25–30 mm.
October is the wettest fall month. Showers tend to be short and steady, not long downpours. With Yerevan’s semi-arid climate, even a little rain feels like a lot after summer.
| Month | Avg. Rainfall (mm) |
|---|---|
| September | 30–35 |
| October | 40–45 |
| November | 25–30 |
So, fall sits in the middle—not the wettest, not the driest.
Number of Rainy Days
Rainy days shift as the season goes on. September usually brings 5–6 rainy days. October is the most unsettled, with 7–8 days. November drops back to 5–6 days.
Rain spreads out, so you don’t get long stretches of wet weather. Showers are mostly light or moderate, and big storms are rare. Outdoor plans usually work out, as rain doesn’t last all day.
If you’re visiting, expect a few interruptions, but nothing major. A light jacket or an umbrella should do the trick.
Rainfall Compared to Other Seasons
Compared to other times of year, fall’s rainfall is moderate. Spring is much wetter—April averages 75 mm and over 12 rainy days. Summer, especially August, is dry, with just 14 mm of rain over about 5 days.
Fall lands right in between. It’s not as intense as spring, but it’s wetter than the parched summer. This helps local agriculture, especially vineyards and orchards that need post-summer rain.
For you, autumn offers a mix of sunny, dry days and the occasional shower. It’s a comfortable season for sightseeing and spending time outside.
Sunshine and Daylight in Autumn
Autumn in Yerevan means shorter days and less sunshine. You’ll notice the shift from long, bright summer days to cooler, darker afternoons.
Average Daily Sunshine Hours
In September, you’ll still get around 9 to 10 hours of sunshine each day. That’s plenty for exploring the city.
By October, sunshine drops to about 7 hours. In November, you’re looking at 5 to 6 hours.
Evenings come earlier every week. Early autumn skies stay pretty clear, but by late October and November, clouds become more common.
If you visit in September, you’ll catch more sunny days. By November, it’s smart to plan outdoor activities earlier.
| Month | Avg. Sunshine Hours/Day |
|---|---|
| September | 9–10 hours |
| October | ~7 hours |
| November | 5–6 hours |
Daylight Duration Changes
Daylight shrinks fast in autumn. Early September gives you about 12.5 hours of daylight, with sunrise at 6:40 a.m. and sunset near 7:10 p.m.
In October, daylight drops to about 11 hours. By November, it’s down to 10 hours or less.
This really affects how much time you have for daytime plans. By late autumn, evenings start before 6:00 p.m.
Longer nights feel even colder, thanks to Yerevan’s continental climate. You’ll want to prep for both the early sunsets and the chilly air.
| Month | Approx. Daylight Duration |
|---|---|
| September | ~12.5 hours |
| October | ~11 hours |
| November | ~10 hours |
Humidity, Wind, and Other Weather Factors
During autumn, Yerevan’s air picks up more humidity than in the dry summer, and the winds shift as cooler systems move in. These changes can really affect how comfortable you feel outside.
Humidity Levels During Fall
Humidity rises as the months go by. Early fall usually brings 50–55% relative humidity, but by late November, it can get up to 70%. The increase comes with cooler weather and a bit more rain.
You’ll notice mornings feel damp, especially in October when cool nights trap moisture. By November, fog sometimes forms in low spots, making early hours a bit hazy.
Fall balances dry and moist days. October’s showers bump up humidity, and cooler nights slow down evaporation.
If you’re traveling, bring heavier clothes that keep you comfortable in damp air, especially if you’re walking through Yerevan’s parks or open squares.
Typical Wind Speeds and Directions
Winds in Yerevan during fall usually feel light to moderate, with speeds around 6–10 km/h (4–6 mph). You probably won’t run into strong gusts, but breezes tend to pick up in the afternoons as the gap between day and night temperatures grows.
The wind direction changes as the season moves along. In September, breezes sometimes blow in from the south, bringing a bit of warmth with them.
By October and November, winds come more often from the north and northwest, and they bring in cooler, drier air.
Since Yerevan sits in a valley near Mount Ararat, the local terrain shapes how the wind moves. You might notice wind funneled through certain streets or open spaces, while some neighborhoods stay surprisingly calm.
These steady, manageable winds usually make outdoor activities pleasant. Still, you’ll probably want a light jacket in the evenings, since the air cools down once the sun sets.
Travel Tips for Visiting Yerevan in Fall
Mild daytime temperatures and cooler evenings make fall in Yerevan a pretty comfortable time for sightseeing. It’s smart to prepare for changing weather and get outside—parks, cafes, and city views look especially colorful this time of year.
What to Pack for Autumn
During the day, temperatures often land between 10°C (50°F) and 20°C (68°F). Evenings, though, can feel much cooler.
Pack layered clothing so you can switch things up as the weather shifts. A light jacket or sweater helps a lot, especially if you plan to stay out after dark.
Don’t forget comfortable walking shoes. Yerevan’s city center has wide boulevards and plenty of stone sidewalks. If you want to check out hiking trails or parks nearby, sturdier shoes come in handy.
Rainfall picks up a bit in October, so tossing a compact umbrella or light raincoat in your bag isn’t a bad idea. Sunglasses are still useful, since sunny days stick around through September and into early October.
A small daypack works well for carrying water, snacks, and extra layers. If you’re into photography, fall colors around Republic Square, Cascade Complex, and Victory Park are worth capturing, so you might want to bring a camera.
Best Outdoor Activities
Autumn really feels like the perfect season for walking tours in Yerevan. The weather stays mild, so you can wander around Republic Square, climb the Cascade steps, or browse Vernissage market without sweating through the summer heat.
Parks like Lovers’ Park and Victory Park show off colorful foliage, and there’s plenty of room to just relax for a bit. Outdoor cafes don’t close up just because it’s fall, and honestly, sipping Armenian coffee outside in the crisp air is hard to beat.
If you’re itching to get out of the city, September and October make the best months for day trips to Garni Temple, Geghard Monastery, or Lake Sevan. Hiking trails near Yerevan, especially around Mount Aragats, feel way more comfortable in fall than they do in the heat of summer or the cold of winter.
Evening strolls just hit different, too. Once the air cools down, the city feels alive but not packed, and you’ll spot plenty of locals out and about late into the night, especially on the weekends.