Approaching what season: Summer's Arrival Timeframe?
Russia is set to experience a mix of weather conditions in September 2025, with cool temperatures and regional variations in temperature and precipitation.
Early September will see daytime temperatures ranging from 12°C to 23°C across different regions, with a mix of cloudy and rainy weather common in many areas. The Central Federal District, the Urals, and Siberia may experience thunderstorms, prolonged overcast weather, and temperatures dropping to +6°C during the day, with nighttime temperatures occasionally dipping below zero, especially in northern regions.
In contrast, the Southern Federal District will enjoy warmer temperatures, with daytime temps above 20°C, and generally dry weather with no precipitation expected. The Volga Federal District will experience day temperatures between 17–22°C, with light rains forecast for early September.
Moscow and surrounding Central regions can expect daytime temperatures around 16–20°C, with cool, changeable weather and short-term rain showers expected. St. Petersburg and Northwestern Russia will be slightly cooler, with temperatures ranging from 14–17°C and mostly cloudy skies with possible intermittent rain.
The Ural District will experience mostly sunny weather, but with some rain expected. Siberian Federal District will be cooler, frequently cloudy, and with rain showers. The Far Eastern Federal District will be cloudy with heavy precipitation, temperatures ranging from 18–23°C in early September.
Petrozavodsk in Northwestern Russia can expect September temperatures ranging from 8°C to 15°C, with moderate rainfall around 30-40 mm for the month and cooler conditions than in summer.
Precipitation varies by region but generally includes short-term rains, with heavier rain and cloud cover more likely in northern and eastern parts of Russia. The overall pattern for September combines late-summer warmth in the south with cooler, wetter conditions in northern and eastern regions.
No long-range detailed forecast for the full month of September 2025 is available, but seasonal outlooks for Eastern Europe and surroundings suggest warmer than average conditions in Central and Eastern Europe, which may affect the western parts of Russia. Northern and eastern Russia will likely remain cooler and wetter into autumn.
Up to 16 days without rain are expected for resorts on the Black Sea coast and in Crimea in the early days of September 2025. However, cyclones will bring cooler temperatures and rain to various parts of the country, including southern regions and the Primorsky krai, starting from the second half of September 2025.
Experts warn that this year's autumnal fluctuations will be more pronounced, with a noticeable chill starting from the first days of September 2025, and a risk of early frosts by the end of the month. Travelers are advised to check the forecast for their city in advance and bring an umbrella.
In a positive note, Moscow residents, Krasnodar locals, and those in the Primorsky region can expect an Indian summer in September 2025, with temperatures potentially reaching +25°C in Moscow, +32°C in southern regions, and +23°C in the Primorsky region. The swimming season in Primorye will end gently, with the sea temperature remaining comfortable until mid-month.
The first half of September 2025 will bring an extension of summer, with pleasant temperatures in parks and on streets, and comfortable nights. In southern regions and the Primorsky krai, temperatures up to +28°C are expected in the early days of September 2025. However, starting from the second decade of September 2025, temperature indicators will begin to drop, especially in the center and north of the country.
Krasnoyarsk, Novosibirsk, and the Urals will receive significantly more precipitation than normal in September 2025, with twice as many rainy days as usual. Warm clothing will be necessary in the midlands and on the Urals as early as the first days of September 2025, as the chill sets in according to experts.
- The weather-forecasting suggests that early September 2025 will bring an Indian summer in Moscow, Krasnodar, and the Primorsky region, with daytime temperatures potentially reaching +25°C in Moscow, +32°C in southern regions, and +23°C in the Primorsky region.
- In contrast to the south, the Northern and eastern parts of Russia, such as Krasnoyarsk, Novosibirsk, and the Urals, will receive significantly more precipitation than normal in September 2025, with twice as many rainy days as usual, requiring warm clothing even in the early days of the month.
