Weather forecast for 10 days
Koyasu, Japan

Weather forecast for the weekend

Saturday, 31. May

Rain
04:27

18:53
JST
Rain
19°C / 16°C
  • Wind: 16km/h N
  • Humidity: 80%
  • Precip. probability: 80%
  • Precipitation: 19mm
  • UV index: 6
On Saturday, May 31, the forecast calls for continuous rainfall and overcast skies.
The likelihood of rainfall is high, and precipitation will be moderate. Slight changes in temperature are predicted, reaching a high of a breezy 19°C and decreasing to a low of an enjoyable 16°C.
The maximum temperature on Saturday will be a couple of degrees lower than the regular high of 21.2°C in May.
Sunrise will be at 04:27 and sunset at 18:53; the daylight will last for 14h and 25min.

Sunday, 01. Jun

Showers
04:27

18:53
JST
Showers
22°C / 16°C
  • Wind: 11km/h SE
  • Humidity: 72%
  • Precip. probability: 43%
  • Precipitation: 4mm
  • UV index: 8
On Sunday, June 1, showers are expected to spread throughout the day, with the heaviest rain expected in the morning.
With a low probability, light precipitation is anticipated. A temperature range of an agreeable 22°C to a comfortable 16°C is forecasted.
The high temperature is expected to match May's standard maximum of 21.2°C.
Sunrise will be at 04:27 and sunset at 18:53; the daylight will last for 14h and 26min.

Frequently asked questions

What is the weather forecast for Koyasu for Saturday?
On Saturday, rainfall will continue, making for a gray and wet day.
Will it rain on Saturday?
Moderate precipitation of 19mm is predicted on Saturday. The chance of rainfall is high at 80%.
What will be the highest temperature on Saturday?
On Saturday, the highest temperature will be 19°C, while the lowest temperature will be 16°C.
What is the weather forecast for Koyasu for Sunday?
On Sunday, light showers are likely, with some brief dry spells throughout the day.
Will it rain on Sunday?
Light precipitation of 4mm is predicted on Sunday. The possibility of rainfall is 43%.
What will be the maximum temperature on Sunday?
On Sunday, the maximum temperature will be 22°C, while the minimum temperature will be 16°C.
What is the weather forecast for Koyasu for the next ten days?
In Koyasu, a combination of gloomy and damp weather is predicted for the next ten days.
Will it rain in the next ten days in Koyasu?
Rainfall is predicted for Tuesday, Thursday through Sunday and next Wednesday in Koyasu. Friday, with high precipitation of 29mm, will be the day with the most rainfall.
How warm will it be in the next ten days?
The maximum temperature will vary between 18°C and 25°C, while the minimum temperature will be between 15°C and 18°C.
What will be the warmest and the coldest days?
The warmest day will be next Tuesday, with a maximum of 25°C. The coldest day will be Friday, with a maximum of 18°C.

Long-term weather forecast

Mon26.May
  • 22°C
  • 16°C
Cloudy
Cloudy
  • Wind: 7km/h ESE
  • Humidity: 55%
  • UV index: 3
  • Precip. probability: 18%
  • Precipitation: 0mm
  • 04:30 18:49 JST
Tue27.May
  • 19°C
  • 15°C
Showers
Showers
  • Wind: 12km/h NNE
  • Humidity: 71%
  • UV index: 4
  • Precip. probability: 64%
  • Precipitation: 4mm
  • 04:29 18:50 JST
Wed28.May
  • 23°C
  • 16°C
Cloudy
Cloudy
  • Wind: 13km/h NE
  • Humidity: 62%
  • UV index: 6
  • Precip. probability: 14%
  • Precipitation: 0mm
  • 04:29 18:51 JST
Thu29.May
  • 23°C
  • 15°C
Cloudy
Cloudy
  • Wind: 8km/h ESE
  • Humidity: 60%
  • UV index: 4
  • Precip. probability: 17%
  • Precipitation: 11mm
  • 04:28 18:51 JST
Fri30.May
  • 18°C
  • 16°C
Rain
Rain
  • Wind: 18km/h NNE
  • Humidity: 78%
  • UV index: 4
  • Precip. probability: 78%
  • Precipitation: 29mm
  • 04:28 18:52 JST
Sat31.May
  • 19°C
  • 16°C
Rain
Rain
  • Wind: 16km/h N
  • Humidity: 80%
  • UV index: 6
  • Precip. probability: 80%
  • Precipitation: 19mm
  • 04:27 18:53 JST
Sun01.Jun
  • 22°C
  • 16°C
Showers
Showers
  • Wind: 11km/h SE
  • Humidity: 72%
  • UV index: 8
  • Precip. probability: 43%
  • Precipitation: 4mm
  • 04:27 18:53 JST
Mon02.Jun
  • 23°C
  • 16°C
Mostly Cloudy
Mostly Cloudy
  • Wind: 11km/h ESE
  • Humidity: 71%
  • UV index: 8
  • Precip. probability: 24%
  • Precipitation: 0mm
  • 04:27 18:54 JST
Tue03.Jun
  • 25°C
  • 18°C
Partly Cloudy
Partly Cloudy
  • Wind: 11km/h ESE
  • Humidity: 66%
  • UV index: 10
  • Precip. probability: 16%
  • Precipitation: 0mm
  • 04:27 18:55 JST
Wed04.Jun
  • 24°C
  • 18°C
PM Showers
PM Showers
  • Wind: 13km/h SE
  • Humidity: 67%
  • UV index: 8
  • Precip. probability: 37%
  • Precipitation: 5mm
  • 04:26 18:55 JST
It is expected that a combination of cloud-filled and showery weather is expected.
Rainfall is anticipated on Tuesday, Thursday through Sunday and next Wednesday.
Temperature fluctuation will be noticeable in the upcoming days. The maximum temperature will vary between 18°C and 25°C, while fluctuations in the night’s lowest temperature will be minimal, as the lowest temperatures will remain in the range of 15°C to 18°C.
Expect the warmest day on next Tuesday, with temperatures peaking at 25°C; with the highest temperature of 18°C, Friday will be the coldest day.
Updated: May 26, 2025 @ 05:14:51 UTC
Published by: Weather Atlas | About Us
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