Weather forecast for 10 daysKoyasu, Japan

10-day overview

Daily temperatures

Warmest day: Friday 23°C.
Coldest day: Tuesday 12°C.

Chance of precipitation

Highest chance: today 100%.

Long-term weather forecast

  • Wednesday
  • 4. Nov 2026
  • 14°C
  • 13°C
Rain
Rain
  • Precip. probability: 100%
  • Precipitation: 53mm
  • Wind: 14km/hN 1°
  • Humidity: 80%
  • UV index: 1
  • Sunrise: 06:07 JST
  • Sunset: 16:45 JST
  • ▼
  • Thursday
  • 5. Nov 2026
  • 19°C
  • 16°C
AM Rain
AM Rain
  • Precip. probability: 69%
  • Precipitation: 3mm
  • Wind: 12km/hN 5°
  • Humidity: 84%
  • UV index: 3
  • Sunrise: 06:08 JST
  • Sunset: 16:44 JST
  • ▼
  • Friday
  • 6. Nov 2026
  • 23°C
  • 13°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0mm
  • Wind: 8km/hSW 218°
  • Humidity: 67%
  • UV index: 4
  • Sunrise: 06:08 JST
  • Sunset: 16:44 JST
  • ▼
  • Saturday
  • 7. Nov 2026
  • 19°C
  • 9°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 9km/hENE 67°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 06:09 JST
  • Sunset: 16:43 JST
  • ▼
  • Sunday
  • 8. Nov 2026
  • 16°C
  • 10°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 18%
  • Precipitation: 5mm
  • Wind: 8km/hNE 44°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 06:10 JST
  • Sunset: 16:42 JST
  • ▼
  • Monday
  • 9. Nov 2026
  • 14°C
  • 9°C
AM Light Rain
AM Light Rain
  • Precip. probability: 51%
  • Precipitation: 4mm
  • Wind: 10km/hNNE 21°
  • Humidity: 73%
  • UV index: 3
  • Sunrise: 06:11 JST
  • Sunset: 16:41 JST
  • ▼
  • Tuesday
  • 10. Nov 2026
  • 12°C
  • 8°C
AM Showers
AM Showers
  • Precip. probability: 31%
  • Precipitation: 2mm
  • Wind: 13km/hNNE 23°
  • Humidity: 64%
  • UV index: 3
  • Sunrise: 06:12 JST
  • Sunset: 16:40 JST
  • ▼
  • Wednesday
  • 11. Nov 2026
  • 16°C
  • 9°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 16%
  • Precipitation: 0mm
  • Wind: 10km/hNNE 23°
  • Humidity: 61%
  • 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: 14%
  • Precipitation: 0mm
  • Wind: 8km/hNE 35°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 06:14 JST
  • Sunset: 16:39 JST
  • ▼
  • Friday
  • 13. Nov 2026
  • 18°C
  • 11°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 17%
  • Precipitation: 0mm
  • Wind: 7km/hENE 73°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 06:15 JST
  • Sunset: 16:38 JST
  • ▼
Over the next ten days, a mix of sunny, rainy and dull weather is forecasted.
Rainfall is anticipated on Wednesday, Thursday, Sunday through Tuesday.
Significant changes in temperature are expected in the upcoming days. The maximum temperature will vary between 12°C and 23°C, while the fluctuation in night temperatures will be also significant, as the lowest temperatures will be recorded between 8°C and 16°C.
Friday will be the warmest day, with a maximum temperature of 23°C; with the highest temperature of 12°C, Tuesday will be the coldest day.
Updated: Nov 4, 2026 @ 03:06:36 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

In Koyasu, a combination of bright, damp and cloudy weather is forecasted for the next ten days.

Rainfall is expected on Wednesday, Thursday, Sunday through Tuesday in Koyasu. With severe precipitation of 53mm, Wednesday will be the day with the most rainfall.

The maximum temperature will range between 12°C and 23°C, as the minimum temperature will be between 8°C and 16°C.

With the maximum temperature of 23°C, Friday will be the warmest day. Tuesday will be the coldest day, with a maximum temperature of 12°C.

On Saturday, mostly sunny weather is likely, with high visibility.

No, it will not rain on Saturday.

On Saturday, the maximum temperature will be 19°C, while the minimum temperature will be 9°C.

On Sunday, sunlight and clouds will take turns dominating the sky.

Light precipitation of 5mm is predicted on Sunday. The chance of rainfall is low at 18%.

On Sunday, the maximum temperature will be 16°C, while the minimum temperature will be 10°C.