Last updated: August 23, 2025
The average temperature in Shimo-furano, Japan during September is a pleasant 15°C (59°F). Daily temperatures can vary significantly, with minimums dropping to 0°C (32°F) and maximums reaching up to 28°C (83°F). Expect a fair amount of rain, with an average precipitation of 119 mm (4.7 in) spread over 14 days. The average humidity is notably high at 88%, making it feel quite muggy.
In September in Shimo-furano, the average temperature is 15°C (59°F). Maximums can reach up to 28°C (83°F), while minimums can drop as low as 0°C (32°F). This variability makes it an ideal time for travelers to enjoy a range of outdoor activities, but it's advisable to pack layers for changing weather conditions.
In Shimo-furano in September, the precipitation amount is 119 mm (4.7 in) over the course of 14 days.
In Shimo-furano in September humidity is 88%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket enveloping you, making outdoor adventures feel stifling and sticky, which can drain your energy while traveling.
In Shimo-furano in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Shimo-furano.
UV Risk Categories
Weather in Shimo-furano varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Shimo-furano, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -9°C (16°F) | 61 mm (2.4 inches) | 84% | low |
| February Weather | -8°C (18°F) | 81 mm (3.2 inches) | 83% | moderate |
| March Weather | -2°C (29°F) | 98 mm (3.9 inches) | 81% | high |
| April Weather | 4°C (39°F) | 89 mm (3.5 inches) | 81% | high |
| May Weather | 11°C (52°F) | 106 mm (4.2 inches) | 86% | very high |
| June Weather | 14°C (58°F) | 111 mm (4.4 inches) | 87% | very high |
| July Weather | 19°C (67°F) | 107 mm (4.2 inches) | 93% | very high |
| August Weather | 19°C (66°F) | 176 mm (6.9 inches) | 95% | very high |
| September Weather | 15°C (59°F) | 119 mm (4.7 inches) | 88% | very high |
| October Weather | 8°C (47°F) | 152 mm (6.0 inches) | 83% | high |
| November Weather | 1°C (34°F) | 137 mm (5.4 inches) | 79% | moderate |
| December Weather | -7°C (21°F) | 106 mm (4.2 inches) | 80% | low |