Meteorologists have provided a weather forecast for September 2025. It is only probable and is based on data on average temperatures and monthly precipitation norms.
Slightly Above Average
According to forecast data for the growing season, the average air temperature in September will be 1 degree or more above the norm. For this period, the typical value is 11.9 degrees.
In the first ten days of September, the climatic norm is 14.3 degrees with a “plus” sign. During this time, thermometer readings may rise to 17.3 degrees.
The monthly amount of precipitation is expected to be close to the climatic norm. For Tatarstan, these values are 48 mm.
Weather Forecast in Kazan
Air temperatures in the capital of Tatarstan during the first ten days of September will range from 15 to 27 degrees. Today is expected to be the warmest. Nighttime temperatures will drop to +12 degrees.
Rain is possible in the upcoming 10 days from Tuesday to Friday and from Monday to Wednesday. The weekend in Tatarstan is again expected to be warm.

Forecasts are approximately the same, but precipitation is forecast until Thursday, and from Friday to Sunday temperatures could reach up to 22 degrees. Next week, rain is possible on Monday, followed by cloudiness.

Meteorologists have said that in 2025, Indian summer may come to Kazan earlier than usual. It was reported that this phenomenon would begin and supposedly last for 10 days.
In the first ten days of the month, the air will warm up to 20–22 degrees, and on some sunny days—up to 23–25 degrees during the daytime. Precipitation is hardly expected, and if there is rain, it will only be brief. After the first ten days, a cold atmospheric front will arrive in the republic and temperatures will drop.
Residents of Tatarstan stated that they do not trust forecasts from services and meteorologists. As a rule, the weather behaves unexpectedly: rain with strong wind can start on a sunny day, or the sun can come out after hail. Residents usually do not make weekend plans at the beginning of the week.

Last year, September turned out to be warm. For example, on September 12, it was reported that good weather would persist in Kazan for a week. Last October, it was stated that warmth would return to the republic, meaning Indian summer would also return.
The end of summer in Tatarstan was a bit rainy. On Republic Day, August 30, there was a downpour, and at night it cooled down to +6 degrees.