Last updated: August 27, 2025
In September, the average temperature in Mirnyy, Russian Federation is a mild 13°C (56°F). During this time, temperatures can vary significantly, with a minimum of 1°C (34°F) and rising to a comfortable maximum of 31°C (87°F). Expect about 38 mm (1.5 in) of precipitation over approximately 7 days, accompanied by a relatively high average humidity of 84%.
In September in Mirnyy, the average temperature is 13°C (56°F), with maximums reaching up to 31°C (87°F) and minimums dropping as low as 1°C (34°F). This range of temperatures makes it essential for travelers to pack layers to stay comfortable throughout the day.
In Mirnyy in September, the precipitation amount is 38 mm (1.5 in) over the course of 7 days.
In Mirnyy in September, humidity is 84%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it feel cooler and more uncomfortable for traveling, as the air clings to your skin and weighs you down with a sense of heaviness.
In Mirnyy in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Mirnyy.
UV Risk Categories
Weather in Mirnyy varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Mirnyy, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -9°C (16°F) | 37 mm (1.4 inches) | 98% | low |
| February Weather | -8°C (18°F) | 39 mm (1.5 inches) | 96% | low |
| March Weather | -3°C (26°F) | 42 mm (1.7 inches) | 93% | moderate |
| April Weather | 5°C (42°F) | 50 mm (2.0 inches) | 83% | moderate |
| May Weather | 14°C (58°F) | 35 mm (1.4 inches) | 71% | high |
| June Weather | 19°C (66°F) | 48 mm (1.9 inches) | 71% | high |
| July Weather | 21°C (71°F) | 55 mm (2.2 inches) | 74% | high |
| August Weather | 20°C (67°F) | 53 mm (2.1 inches) | 71% | high |
| September Weather | 13°C (56°F) | 38 mm (1.5 inches) | 84% | moderate |
| October Weather | 7°C (45°F) | 46 mm (1.8 inches) | 90% | moderate |
| November Weather | -1°C (30°F) | 35 mm (1.4 inches) | 93% | low |
| December Weather | -7°C (20°F) | 36 mm (1.4 inches) | 90% | low |