The climate in Yaroslavl' during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Yaroslavl' and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 15°C (59°F), whilst at night 7°C (44°F) is normal.
| Daytime temperature | 15°C 59°F |
|---|---|
| Nightly temperature | 6.6°C 43.9°F |
| Average temperature | 10.8°C 51.4°F |
| Daily sunshine | 5 hrs |
| Avg rainfall | 55 mm 2.2 ins |
| Rainy days | 15 days |
| Sea temperature | 13.1°C 55.6°F |
| Humidity | 80% |
| Windspeed | 10.1kph 6 mph |
On average September is the 4th wettest month of the year in Yaroslavl' with around 55mm 2.2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Yaroslavl' in September 2025.
Best places to visit in September
| Hottest month: | July | 23.1°C 73.6°F |
|---|---|---|
| Driest month: | March | 26mm 1ins |
| Sunniest month: | June | 10.7hrs |
| Coldest month: | January | -8.3°C 17.1°F |
| Wettest month: | July | 89mm 3.5ins |