Ulan-Ude in September

In September, Ulan-Ude averages 16°C (60°F) during the day and 6°C (42°F) at night, with frequent rain — about 15 days of the month see precipitation (43 mm total).

Shoulder

Conditions are cool — bring a jacket for evenings. Plan for unsettled weather and bring rain gear.

September is one of the wetter and less comfortable months in Ulan-Ude. If your dates are flexible, consider a different time of year.

16°C
Avg high
6°C
Avg low
15
Rain days
43 mm
Rainfall

How September compares to the rest of the year in Ulan-Ude

5th
warmest month of the 12
3rd
wettest month of the 12
16%
of yearly rainfall falls in September
12 h 43 min
daylight on the 15th

September is in the middle of the year for warmth in Ulan-Ude (5th of 12) and one of the wettest months (3rd of 12). Daytime temperature runs 9°C above the annual average (7°C). September runs 8°C cooler than August (23°C) and cools 10°C in October (6°C).

September sunrise & sunset in Ulan-Ude

🌅
Sunrise (15th)
6:23 AM
🌇
Sunset (15th)
7:06 PM
Day length
12 h 43 min

Times shown for Ulan-Ude local time (Asia/Irkutsk), calculated for the 15th of September. They shift by a few minutes day to day across the month.

Photography light in Ulan-Ude — September

Golden-hour and blue-hour windows for the 15th of September, in Ulan-Ude's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).

🌅 Blue hour (AM)
5:23 AM – 6:03 AM
🌄 Golden hour (AM)
6:03 AM – 7:03 AM
🌇 Golden hour (PM)
6:26 PM – 7:26 PM
🌆 Blue hour (PM)
7:26 PM – 8:06 PM
Milky Way galactic core
Poor
Core barely rises (or hasn't yet returned for the season). Consider a different month.

📅 When to book — Ulan-Ude in September

Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (Shoulder) and Ulan-Ude's popularity.

✈ Flights — lead time
6-10 weeks
Sweet spot for value. Major fare-sales (US: Black Friday, EU: post-Easter) hit hardest in shoulder months for shoulder travel.
🏨 Lodging — lead time
4-8 weeks
Lots of selection. Look for shoulder-season packages — many hotels add value (free breakfast, spa credit) to fill rooms.

Crowds & pricing — September in Ulan-Ude

Shoulder

Ulan-Ude is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.

Why this tier: comfortable tourism weather

Sun & mosquito risk — September in Ulan-Ude

☀️ UV Index (noon, 15th)
7.4
High
Cover up and apply SPF 30+ for any outdoor activity longer than 30 minutes.
🦟 Mosquito risk
●●●○○
Moderate
Active mosquito season. DEET 25-30% repellent recommended, especially at dawn/dusk.

UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.

Ulan-Ude in other months

MonthAvg highAvg lowRainfallRain daysSnow days
January -16°C / 3°F -25°C / -13°F 6 mm 8
February -10°C / 13°F -22°C / -8°F 6 mm 6
March 2°C / 35°F -11°C / 13°F 7 mm 7
April 11°C / 51°F -2°C / 28°F 13 mm 10
May 17°C / 63°F 3°C / 38°F 25 mm 14
June 25°C / 77°F 12°C / 53°F 26 mm 13
July 27°C / 80°F 15°C / 59°F 51 mm 16
August 23°C / 74°F 13°C / 55°F 55 mm 15
September 16°C / 60°F 6°C / 42°F 43 mm 15
October 6°C / 43°F -3°C / 27°F 12 mm 10
November -5°C / 23°F -13°C / 9°F 10 mm 11
December -13°C / 8°F -21°C / -5°F 13 mm 10

Other cities with similar September weather

🌍 See the full ranked list of climate twins for Ulan-Ude in September →

Frequently asked questions

How hot is Ulan-Ude in September?

In September, Ulan-Ude averages a high of 16°C (60°F) and a low of 6°C (42°F) — generally cool.

Does it rain a lot in Ulan-Ude in September?

September is quite rainy in Ulan-Ude, with about 15 rainy days on average.

Is September a good time to visit Ulan-Ude?

September is cool but on the rainy side. It suits travelers who are comfortable with cool weather; check the month-by-month ranking to compare it against the rest of the year.

What should I pack for Ulan-Ude in September?

Pack a warm jacket and layers, plus a compact umbrella or rain jacket. See the full September packing list for Ulan-Ude for a complete, climate-based checklist.

Open Ulan-Ude on the interactive map

Check the live 10-day forecast and sunrise/sunset.