Last updated: August 27, 2025
In September, the average temperature in Obninsk, Russian Federation hovers around 12°C (55°F). However, be prepared for a range, as it can dip to a brisk -2°C (29°F) or soar to a warm 30°C (86°F). You'll also want to pack an umbrella, as 50 mm (1.9 in) of precipitation is expected over 9 days, contributing to an average humidity of 86%.
In September in Obninsk, the average temperature is 12°C (55°F), with maximums reaching up to 30°C (86°F) and minimums dropping as low as -2°C (29°F). This variety in temperature makes Obninsk an intriguing destination, so visitors should be prepared for both warm and chilly weather.
In Obninsk in September, the precipitation amount is 50 mm (1.9 in) over the course of 9 days.
In Obninsk in September humidity is 86%. With an average temperature of 12°C (55°F), this humidity feels like a damp chill that clings to your skin, making it essential to dress in layers while traveling.
In Obninsk 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 Obninsk.
UV Risk Categories
Weather in Obninsk varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Obninsk, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (23°F) | 44 mm (1.7 inches) | 97% | low |
| February Weather | -5°C (23°F) | 47 mm (1.9 inches) | 95% | low |
| March Weather | -1°C (31°F) | 38 mm (1.5 inches) | 92% | moderate |
| April Weather | 6°C (43°F) | 47 mm (1.9 inches) | 83% | moderate |
| May Weather | 13°C (55°F) | 71 mm (2.8 inches) | 75% | high |
| June Weather | 17°C (64°F) | 70 mm (2.7 inches) | 76% | high |
| July Weather | 18°C (65°F) | 106 mm (4.2 inches) | 79% | high |
| August Weather | 18°C (64°F) | 62 mm (2.4 inches) | 78% | high |
| September Weather | 12°C (55°F) | 50 mm (1.9 inches) | 86% | moderate |
| October Weather | 7°C (45°F) | 49 mm (1.9 inches) | 91% | moderate |
| November Weather | 1°C (34°F) | 39 mm (1.5 inches) | 95% | low |
| December Weather | -3°C (26°F) | 62 mm (2.4 inches) | 94% | low |