Last updated: August 27, 2025
In September the average temperature in Syumsi, Russian Federation hovers around 10°C (51°F), making it a cool time of year. Expect a minimum temperature dropping to -2°C (28°F), while the mercury can rise as high as 29°C (84°F) on warmer days. Alongside these fluctuations, you may encounter an average precipitation of 48 mm (1.9 in) over 10 days, contributing to the region's 87% humidity. Be prepared for a mix of weather as you explore!
In September in Syumsi, the average temperature is 10°C (51°F). Maximums can reach 29°C (84°F) and minimums can be as low as -2°C (28°F). This makes Syumsi a versatile destination for travelers, offering a mix of mild days and cool evenings ideal for various outdoor activities.
In Syumsi in September, the precipitation amount is 48 mm (1.9 in) spread over a period of 10 days.
In Syumsi in September humidity is 87%. With an average temperature of 10°C (51°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities uncomfortable and sticky, and often requiring frequent breaks to stay hydrated and cool.
In Syumsi in September, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Syumsi for better planning.
UV Risk Categories
Weather in Syumsi varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Syumsi, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -10°C (14°F) | 44 mm (1.7 inches) | 99% | low |
| February Weather | -9°C (16°F) | 50 mm (2.0 inches) | 97% | low |
| March Weather | -4°C (25°F) | 46 mm (1.8 inches) | 96% | moderate |
| April Weather | 4°C (39°F) | 63 mm (2.5 inches) | 89% | moderate |
| May Weather | 12°C (54°F) | 41 mm (1.6 inches) | 74% | high |
| June Weather | 16°C (62°F) | 55 mm (2.2 inches) | 70% | high |
| July Weather | 19°C (67°F) | 81 mm (3.2 inches) | 72% | high |
| August Weather | 17°C (63°F) | 55 mm (2.2 inches) | 71% | high |
| September Weather | 10°C (51°F) | 48 mm (1.9 inches) | 87% | moderate |
| October Weather | 5°C (41°F) | 59 mm (2.3 inches) | 91% | moderate |
| November Weather | -3°C (28°F) | 46 mm (1.8 inches) | 93% | low |
| December Weather | -8°C (17°F) | 47 mm (1.9 inches) | 88% | low |