Weather forecast for 10 daysKoyasu, Japan

10-day overview

Daily temperatures

Warmest day: Friday 23°C.
Coldest period: Monday - Tuesday 13°C.

Chance of precipitation

Highest chance: today 100%.

Long-term weather forecast

  • Wednesday
  • 4. Nov 2026
  • min.
  • 11°C
Rain
Rain
  • Precip. probability: 100%
  • Precipitation: 42mm
  • Wind: 16km/hNNW 342°
  • Humidity: 93%
  • UV index: 0
  • Sunrise: 06:07 JST
  • Sunset: 16:45 JST
  • ▼
  • Thursday
  • 5. Nov 2026
  • 18°C
  • 15°C
Light Rain
Light Rain
  • Precip. probability: 49%
  • Precipitation: 2mm
  • Wind: 16km/hN 355°
  • Humidity: 85%
  • UV index: 2
  • Sunrise: 06:08 JST
  • Sunset: 16:44 JST
  • ▼
  • Friday
  • 6. Nov 2026
  • 23°C
  • 12°C
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 9km/hSW 216°
  • Humidity: 67%
  • UV index: 4
  • Sunrise: 06:08 JST
  • Sunset: 16:44 JST
  • ▼
  • Saturday
  • 7. Nov 2026
  • 18°C
  • 8°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 12%
  • Precipitation: 0mm
  • Wind: 9km/hENE 65°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 06:09 JST
  • Sunset: 16:43 JST
  • ▼
  • Sunday
  • 8. Nov 2026
  • 15°C
  • 9°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 2mm
  • Wind: 9km/hNE 38°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 06:10 JST
  • Sunset: 16:42 JST
  • ▼
  • Monday
  • 9. Nov 2026
  • 13°C
  • 8°C
AM Showers
AM Showers
  • Precip. probability: 33%
  • Precipitation: 1mm
  • Wind: 11km/hNNE 14°
  • Humidity: 69%
  • UV index: 2
  • Sunrise: 06:11 JST
  • Sunset: 16:41 JST
  • ▼
  • Tuesday
  • 10. Nov 2026
  • 13°C
  • 6°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0mm
  • Wind: 14km/hNNE 22°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 06:12 JST
  • Sunset: 16:40 JST
  • ▼
  • Wednesday
  • 11. Nov 2026
  • 14°C
  • 7°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0mm
  • Wind: 11km/hNNE 14°
  • Humidity: 63%
  • UV index: 4
  • Sunrise: 06:13 JST
  • Sunset: 16:39 JST
  • ▼
  • Thursday
  • 12. Nov 2026
  • 18°C
  • 9°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 12%
  • Precipitation: 0mm
  • Wind: 9km/hNE 40°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 06:14 JST
  • Sunset: 16:39 JST
  • ▼
  • Friday
  • 13. Nov 2026
  • 18°C
  • 10°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Wind: 8km/hNE 49°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 06:15 JST
  • Sunset: 16:38 JST
  • ▼
sun-filled, rainy and overcast weather is expected.
Rain is predicted for Wednesday, Thursday and Monday.
Expect a substantial fluctuation in daytime highs in the upcoming period. The maximum temperature will vary between 13°C and 23°C, while there will be also a marked difference in overnight low temperatures, as nighttime lows are forecast to fall between 6°C and 15°C.
With the highest temperature of 23°C, Friday will be the warmest day; the coldest days will be Monday and Tuesday, with a maximum of 13°C.
Updated: Nov 4, 2026 @ 09:47:28 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

In Koyasu, a combination of sun-filled, rainy and gloomy weather is expected for the next ten days.

Rain is predicted for Wednesday, Thursday and Monday in Koyasu. Wednesday, with heavy precipitation of 42mm, will be the day with the most rainfall.

The maximum temperature will vary between 13°C and 23°C, as the minimum temperature will range between 6°C and 15°C.

The warmest day will be Friday, with a maximum of 23°C. With a maximum temperature of 13°C, Monday and Tuesday will be the coldest days.

On Saturday, blue skies and warm sunshine will define the conditions.

No, it will not rain on Saturday.

On Saturday, the maximum temperature will be 18°C, while the minimum temperature will be 8°C.

On Sunday, thick clouds will linger with little clearing expected.

On Sunday, there is a low chance of minimal precipitation in Koyasu.

On Sunday, the maximum temperature in Koyasu will be 15°C, while the minimum temperature will be 9°C.