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Novosibirsk in September: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Novosibirsk in September will be like? Take a look at our weather guide for Novosibirsk, based on historical data.
Check flight prices to Novosibirsk on Avionero:
September

Weather in Novosibirsk in September 2025

OK Weather
Mild
🌧️
Rainy
If you plan to visit Novosibirsk in September, the weather is typically alright, with an average high temperature of +59°F during the day and approximately 4 sunny days. Expect some rainy, though, as there are typically 15 rainy days in the month and around 45 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+59°F
Avg. max. temperature
+21°F
Min.
+90°F
Max.
45 mm
Total precipitation
76%
Avg. humidity
2 m/s
Avg. wind
4 ☀️
Sunny Days
11 ⛅️
Cloudy
15 🌦
Rainy
Our opinion: Novosibirsk has OK weather in September.

Average temperature in Novosibirsk in September

Here are the expected maximum, average and minimum temperatures in Novosibirsk for September based on the historical data.
Last Year
Historical Data

Going from a maximum of +72°F during the day to a minimum of +27°F during the night, the temperature in September averages around +63°F.

The average maximum temperature goes down 32% by the end of the month, compared with the beginning of the month, from +70°F to +55°F.

Is Novosibirsk warm or cold in September?

Novosibirsk is typically mild in September.

Maximum temperatures go down compared to the previous month from +70°F to +59°F. The minimum temperature also goes down from +50°F to +39°F.

Pack a light jacket as it will be warm in the day and cool in the evenings.

Take a look at how September is compared to other months in Novosibirsk:

Climate in Novosibirsk in September

Novosibirsk weather looks like this, on average, in September and the surrounding months.
AugustSeptemberOctober
Avg. temperature
+70°F+59°F+43°F
Min. temperature
+36°F+21°F-6°F
Max. temperature
+93°F+90°F+73°F
Rainfall
54 mm45 mm30 mm
Wind
2 m/s2 m/s3 m/s
Humidity
76%76%79%
Air pressure
1009 HPa1015 HPa1019 HPa
Sunny days
442
Cloudy days
101113
Rainy days
17158
Snowy days
018

September weather is still as ok as in August. It’s getting colder in September. From +70°F in the day, the average maximum temperature lowers to +59°F. As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 54 mm to 45 mm. Humidity levels don’t change as the month goes on, averaging around 76%. The average wind speed doesn’t change much during September, staying around 2 m/s. The amount of sunny days stay about the same, averaging 4 sunny days during the month.

October brings much the same weather, it remains ok.

Wind

Wind speed in Novosibirsk in September based on historical data.
Last Year
Historical Data

The average wind speed is 2 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Novosibirsk is gradually increasing during September, going from 1 m/s to 3 m/s over the course of the month.

Rain

Amount of rainfall in mm during September in Novosibirsk based on historical data.
Last Year
Historical Data
Typically, there is a 30% chance of rain on an average day in September, with total rainfall of approximately 31 mm. The maximum amount of rainfall per day is around 9 mm, which is considered light rain. On average, there are about 9 rainy days during September, so prepare to bring an umbrella.
Here’s how September is compared with other months in the amount of precipitation, total mm:
Novosibirsk wettest month is July, where a typical day has a 58% chance of precipitation and 65 mm of rainfall per day. January, on the other hand, is the driest month with a mere 0% chance of precipitation and 0 mm of rainfall per day.

How was the weather last September in Novosibirsk?

This is the weather in Novosibirsk in September 2023:
1 September
☁️
+70°F
2 September
☁️
+70°F
3 September
☁️
+71°F
4 September
☁️
+68°F
5 September
☁️
+59°F
6 September
☁️
+57°F
7 September
☁️
+59°F
8 September
☁️
+61°F
9 September
☀️
+65°F
10 September
☀️
+67°F
11 September
☀️
+62°F
12 September
☁️
+54°F
13 September
☁️
+64°F
14 September
☀️
+67°F
15 September
☁️
+67°F
16 September
☁️
+68°F
17 September
☁️
+69°F
18 September
☁️
+69°F
19 September
☁️
+70°F
20 September
☀️
+69°F
21 September
☀️
+71°F
22 September
☀️
+67°F
23 September
☁️
+50°F
24 September
☁️
+45°F
25 September
☀️
+45°F
26 September
☀️
+54°F
27 September
☁️
+57°F
28 September
☁️
+51°F
29 September
☁️
+53°F
30 September
☀️
+56°F
In September 2023 Novosibirsk had 10 sunny days, 20 cloudy days, and 0 rainy days. The average maximum temperature was +63°F, with an absolute maximum of +72°F and a minimum of +45°F. The average humidity was 80%, with a maximum of 100% and a minimum of 43%. The average wind speed was 2 m/s, with a maximum of 6 m/s and a minimum of 0 m/s.
Are you planning a trip in September?

Climate Change Over the Years

This is how Novosibirsk climate has changed over the last 43 years.

The climate in Novosibirsk in September has not changed that much over the last 43 years.

The average temperature was the lowest in 1984 (+37°F) and the highest in 2020 (+47°F). The driest year was 1981 with only 192 mm of rainfall, and the wettest year was 1996 with 474 mm.

FAQ

Frequently asked questions about the weather in Novosibirsk in September:

Is September a good time to visit Novosibirsk?

It’s always a good time to visit Novosibirsk, but the weather is changeable in September, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Novosibirsk in September?

September has mild temperatures in Novosibirsk. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Is Novosibirsk rainy in September?

Novosibirsk is usually dry in September. Plan your packing around outdoor activities and exploring.

Is it sunny in Novosibirsk in September?

Usually, it’s not very sunny in Novosibirsk in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Russia

Check out the weather for other cities in Russia.

Monthly weather in Novosibirsk

Source of the data

For this page, we’ve looked at the typical weather in Novosibirsk, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.