Omsk Weather in September
During September, Omsk experiences moderate daytime temperatures of 17°C (63°F) and cooler nights around 6°C (43°F). Some rainfall is typical during this period.
Rainfall in Omsk in September
You can typically expect 12 days of rain this month, averaging around 38 mm (1.5 in). The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Omsk in September
September in Omsk brings moderate temperatures, with highs of 17°C (63°F) and nights around 6°C (43°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights drop to 6°C (43°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Omsk in September
The area enjoys a moderate level of sunlight, with around 181 hours. It's a good balance between sunny and cloudy days.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July and August typically offer the best weather for Omsk.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Russia, check out our Omsk's climate page.
Omsk Temperature in September
Min Temperature
6°C (43°F)
Max Temperature
17°C (63°F)
Chance of Rain
40%
Precipitation
38 mm (1.5 in)
Rainy days
12 days
Humidity
71%
Sunshine
181 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Omsk typically drop from around 19°C (66°F) at the start of September to approximately 12°C (54°F) by the end. Nights are cold, with lows typically ranging from 2°C (36°F) to 9°C (48°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Omsk in September
Browse day-by-day weather records for Omsk spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Omsk historical weather extremes in September
Our historical data for Omsk spans 1998 to 2025, revealing these weather extremes.
- On September 4, 2003, temperatures climbed to 32°C (90°F), marking the warmest September day on record.
- On September 23, 2017, Omsk saw its coldest September day with temperatures maxing out at 2°C (36°F).
- The coldest night in September in Omsk was on September 29, 2014, with a minimum of -7°C (19°F).
- The wettest day in September Omsk was on September 1, 2009 with 24 mm (0.9 in) of precipitation.
Best Places in Russia in September
Find out more about the weather in Russia and which places have the best travel conditions in this month. See all of Russia in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Omsk in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Light rain is possible, so consider bringing a small umbrella or rain jacket. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Omsk in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Russia, check out our Omsk's climate page.
Temperature Rainfall Sunshine Humidity
See the full Omsk climate overview or explore weather in Russia.
