Last updated: August 27, 2025
In September, the average temperature in Mendeleyevsk, Russian Federation hovers around 11°C (52°F). Expect a range from a chilly -1°C (31°F) to a warm 30°C (87°F). With 41 mm (1.6 in) of precipitation spread over 9 days, the air remains quite humid, averaging around 82%. Whether you're braving the cool mornings or enjoying the occasional warmth, be prepared for a mix of weather!
In September in Mendeleyevsk, the average temperature is 11°C (52°F). Maximums can reach 30°C (87°F), while minimums can drop as low as -1°C (31°F). This variation in temperature makes it essential to pack a range of clothing to accommodate both warm days and chilly nights.
In Mendeleyevsk in September, the precipitation amount is 41 mm (1.6 in) spread over 9 days.
In Mendeleyevsk in September, humidity is 82%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers and stay prepared for the moisture-laden air as you explore your surroundings.
In Mendeleyevsk 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 Mendeleyevsk.
UV Risk Categories
Weather in Mendeleyevsk varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Mendeleyevsk, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -10°C (14°F) | 41 mm (1.6 inches) | 97% | low |
| February Weather | -9°C (16°F) | 45 mm (1.8 inches) | 96% | low |
| March Weather | -4°C (24°F) | 44 mm (1.7 inches) | 94% | moderate |
| April Weather | 5°C (40°F) | 52 mm (2.1 inches) | 85% | moderate |
| May Weather | 13°C (56°F) | 46 mm (1.8 inches) | 69% | high |
| June Weather | 17°C (63°F) | 47 mm (1.9 inches) | 68% | high |
| July Weather | 20°C (68°F) | 64 mm (2.5 inches) | 69% | high |
| August Weather | 18°C (65°F) | 57 mm (2.2 inches) | 68% | high |
| September Weather | 11°C (52°F) | 41 mm (1.6 inches) | 82% | moderate |
| October Weather | 6°C (42°F) | 47 mm (1.8 inches) | 90% | moderate |
| November Weather | -2°C (28°F) | 41 mm (1.6 inches) | 93% | low |
| December Weather | -8°C (17°F) | 43 mm (1.7 inches) | 88% | low |