Last updated: August 27, 2025
In September, the average temperature in Sayansk, Russian Federation is a cool 10°C (51°F). While you might experience brisk days with a minimum temperature dropping to -5°C (23°F), there's potential for warmer moments, reaching a maximum of 27°C (81°F). Expect an average precipitation amount of 72 mm (2.8 in) spread over 13 days, contributing to a high average humidity of 80%.
In September in Sayansk, the average temperature is 10°C (51°F), with maximums reaching 27°C (81°F) and minimums dropping as low as -5°C (23°F). This variation in temperature makes Sayansk a destination where travelers should be prepared for both warm and cold weather.
In Sayansk in September, the precipitation amount is 72 mm (2.8 in) over a period of 13 days.
In Sayansk in September, humidity is 80%. With an average temperature of 10°C (51°F), this humidity feels like a damp layer clinging to the skin, making outdoor activities uncomfortable and requiring travelers to dress in layers to cope with the chill and moisture in the air.
In Sayansk 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 Sayansk.
UV Risk Categories
Weather in Sayansk varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Sayansk, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -18°C (0°F) | 17 mm (0.7 inches) | 94% | low |
| February Weather | -16°C (4°F) | 16 mm (0.6 inches) | 93% | low |
| March Weather | -4°C (25°F) | 16 mm (0.6 inches) | 91% | moderate |
| April Weather | 5°C (41°F) | 23 mm (0.9 inches) | 89% | moderate |
| May Weather | 12°C (54°F) | 47 mm (1.8 inches) | 76% | high |
| June Weather | 18°C (65°F) | 60 mm (2.4 inches) | 58% | high |
| July Weather | 19°C (67°F) | 65 mm (2.6 inches) | 64% | high |
| August Weather | 18°C (64°F) | 68 mm (2.7 inches) | 63% | high |
| September Weather | 10°C (51°F) | 72 mm (2.8 inches) | 80% | moderate |
| October Weather | 3°C (38°F) | 31 mm (1.2 inches) | 87% | moderate |
| November Weather | -5°C (23°F) | 32 mm (1.3 inches) | 94% | low |
| December Weather | -15°C (6°F) | 28 mm (1.1 inches) | 96% | low |