Last updated: August 27, 2025
In September, the average temperature in Yuzhno-Sakhalinsk, Russian Federation hovers around 14°C (57°F), making it a cool yet pleasant time of year. Temperatures can dip as low as -1°C (31°F), while they may soar to a maximum of 27°C (81°F). Be prepared for some rain, as 92 mm (3.6 in) of precipitation is typical over 12 days, and with an average humidity of 88%, it’s a season where the air feels quite moist.
In September in Yuzhno-Sakhalinsk, the average temperature is 14°C (57°F). Maximum temperatures can reach 27°C (81°F), while minimums can dip as low as -1°C (31°F). This makes it a great time for travelers to experience a mix of warm days and cooler evenings, so be sure to pack accordingly!
In Yuzhno-Sakhalinsk in September, the precipitation amount is 92 mm (3.6 in) over the course of 12 days.
In Yuzhno-Sakhalinsk in September humidity is 88%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier and giving a sense of stickiness that can drain your energy quickly while exploring.
In Yuzhno-Sakhalinsk in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Yuzhno-Sakhalinsk.
UV Risk Categories
Weather in Yuzhno-Sakhalinsk varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Yuzhno-Sakhalinsk, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -13°C (9°F) | 42 mm (1.7 inches) | 89% | low |
| February Weather | -11°C (12°F) | 47 mm (1.9 inches) | 86% | moderate |
| March Weather | -4°C (25°F) | 66 mm (2.6 inches) | 84% | moderate |
| April Weather | 2°C (36°F) | 72 mm (2.8 inches) | 86% | high |
| May Weather | 8°C (47°F) | 71 mm (2.8 inches) | 89% | high |
| June Weather | 11°C (53°F) | 77 mm (3.0 inches) | 88% | very high |
| July Weather | 16°C (62°F) | 79 mm (3.1 inches) | 93% | very high |
| August Weather | 16°C (61°F) | 109 mm (4.3 inches) | 94% | very high |
| September Weather | 14°C (57°F) | 92 mm (3.6 inches) | 88% | high |
| October Weather | 7°C (44°F) | 103 mm (4.0 inches) | 79% | moderate |
| November Weather | -1°C (30°F) | 87 mm (3.4 inches) | 75% | low |
| December Weather | -10°C (14°F) | 61 mm (2.4 inches) | 83% | low |