Last updated: August 27, 2025
In September, the average temperature in Klyuchevskiy, Russian Federation hovers around 9°C (49°F), with lows potentially dropping to a brisk -6°C (21°F) and highs reaching a pleasant 26°C (80°F). Expect 84 mm (3.3 in) of precipitation over approximately 10 days, contributing to an average humidity of 85%. Be prepared for a mix of chilly and warm days during your visit!
In September in Klyuchevskiy, the average temperature is 9°C (49°F). The maximum can reach 26°C (80°F), while the minimum can dip as low as -6°C (21°F). This makes Klyuchevskiy an ideal destination for travelers seeking a mix of mild weather and the possibility of cooler days.
In Klyuchevskiy in September, the precipitation amount is 84 mm (3.3 in) over a span of 10 days.
In Klyuchevskiy in September humidity is 85%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making every step outside a challenge as the moisture in the air weighs heavily and lingers, transforming even simple outings into a quest for comfort.
In Klyuchevskiy 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 Klyuchevskiy.
UV Risk Categories
Weather in Klyuchevskiy varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Klyuchevskiy, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -28°C (-18°F) | 4 mm (0.2 inches) | 95% | low |
| February Weather | -22°C (-7°F) | 8 mm (0.3 inches) | 86% | low |
| March Weather | -10°C (15°F) | 10 mm (0.4 inches) | 78% | moderate |
| April Weather | 1°C (34°F) | 21 mm (0.8 inches) | 72% | moderate |
| May Weather | 8°C (48°F) | 65 mm (2.5 inches) | 77% | high |
| June Weather | 16°C (61°F) | 75 mm (2.9 inches) | 81% | very high |
| July Weather | 18°C (65°F) | 140 mm (5.5 inches) | 85% | very high |
| August Weather | 16°C (60°F) | 118 mm (4.6 inches) | 84% | high |
| September Weather | 9°C (49°F) | 84 mm (3.3 inches) | 85% | moderate |
| October Weather | -1°C (30°F) | 20 mm (0.8 inches) | 86% | moderate |
| November Weather | -15°C (5°F) | 13 mm (0.5 inches) | 94% | low |
| December Weather | -28°C (-19°F) | 7 mm (0.3 inches) | 97% | low |