Weather forecast for 10 daysKosai, Japan

Weather forecast for the weekend

Saturday 31. Oct 2026

  • 22°C
  • 13°C
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 29km/hWNW 301°
  • Humidity: 64%
  • UV index: 5
  • Sunrise: 06:09 JST
  • Sunset: 16:57 JST
  • ▼
On Saturday, October 31, skies are expected to be clear and full of sunshine.
The temperature will vary between a maximum of a pleasant 22°C and a minimum of a mild 13°C.
The predicted high for today will reflect the normal October maximum of 21.5°C.
Sunrise will be at 06:09 and sunset at 16:57; the daylight will last for 10h and 49min.

Sunday 1. Nov 2026

  • 23°C
  • 14°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 16km/hWNW 300°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 06:10 JST
  • Sunset: 16:56 JST
  • ▼
Tomorrow, mainly sunny conditions will dominate the day.
The maximum temperature will be a moderately hot 23°C, while the minimum expected temperature is a mild 14°C.
Tomorrow, the predicted high will correspond with the regular October temperature of 21.5°C.
Sunrise will be at 06:10 and sunset at 16:56; tomorrow's daylight will last for 10h and 47min.

10-day overview

Daily temperatures

Maximum temperature: 23°C.
Coldest day: Sunday 08.11. 18°C.

Chance of precipitation

Highest chance: Monday 90%.

Long-term weather forecast

  • Saturday
  • 31. Oct 2026
  • 22°C
  • 13°C
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 29km/hWNW 301°
  • Humidity: 64%
  • UV index: 5
  • Sunrise: 06:09 JST
  • Sunset: 16:57 JST
  • ▼
  • Sunday
  • 1. Nov 2026
  • 23°C
  • 14°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 16km/hWNW 300°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 06:10 JST
  • Sunset: 16:56 JST
  • ▼
  • Monday
  • 2. Nov 2026
  • 20°C
  • 14°C
Rain
Rain
  • Precip. probability: 90%
  • Precipitation: 11mm
  • Wind: 13km/hNW 307°
  • Humidity: 76%
  • UV index: 2
  • Sunrise: 06:11 JST
  • Sunset: 16:55 JST
  • ▼
  • Tuesday
  • 3. Nov 2026
  • 22°C
  • 12°C
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 19km/hNW 307°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 06:11 JST
  • Sunset: 16:54 JST
  • ▼
  • Wednesday
  • 4. Nov 2026
  • 20°C
  • 15°C
PM Light Rain
PM Light Rain
  • Precip. probability: 36%
  • Precipitation: 14mm
  • Wind: 16km/hENE 59°
  • Humidity: 66%
  • UV index: 3
  • Sunrise: 06:12 JST
  • Sunset: 16:53 JST
  • ▼
  • Thursday
  • 5. Nov 2026
  • 20°C
  • 16°C
Rain
Rain
  • Precip. probability: 68%
  • Precipitation: 8mm
  • Wind: 17km/hNE 52°
  • Humidity: 84%
  • UV index: 3
  • Sunrise: 06:13 JST
  • Sunset: 16:53 JST
  • ▼
  • Friday
  • 6. Nov 2026
  • 23°C
  • 13°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 21%
  • Precipitation: 0mm
  • Wind: 29km/hNW 305°
  • Humidity: 65%
  • UV index: 4
  • Sunrise: 06:14 JST
  • Sunset: 16:52 JST
  • ▼
  • Saturday
  • 7. Nov 2026
  • 19°C
  • 10°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0mm
  • Wind: 28km/hNW 310°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 06:15 JST
  • Sunset: 16:51 JST
  • ▼
  • Sunday
  • 8. Nov 2026
  • 18°C
  • 11°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 20km/hNW 316°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 06:16 JST
  • Sunset: 16:50 JST
  • ▼
  • Monday
  • 9. Nov 2026
  • 19°C
  • 12°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 22%
  • Precipitation: 0mm
  • Wind: 19km/hNW 315°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 06:17 JST
  • Sunset: 16:49 JST
  • ▼
Looking ahead, conditions suggest a period of mostly clear, rain-filled and overcast weather is expected.
Rainfall is expected on Monday, Wednesday and Thursday.
In the coming days, the highest temperature will range between 18°C and 23°C, while the forecast minimum temperature falls between 10°C and 16°C.
With a maximum temperature of 23°C, Sunday and Friday will be the warmest days; the lowest daytime temperature of the period will be reached on next Sunday, peaking at 18°C.
Updated: Oct 30, 2026 @ 18:16:15 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, skies are expected to be clear and full of sunshine.

Today, the maximum temperature will be 22°C, while the minimum temperature will be 13°C.
The highest temperature today will be in line with the average maximum temperature in October. The lowest temperature today will be a couple of degrees lower than the average low temperature.

On Saturday, in Kosai, sunrise will be at 06:09 and sunset at 16:57 (JST).

Today, the daylight will last for 10h and 49min.

On Sunday, sunshine will lead the day, with clouds making only brief appearances.

Tomorrow, the highest temperature will be 23°C, while the lowest temperature will be 14°C.
Tomorrow, the highest temperature will be in line with the average maximum temperature in October. The lowest temperature will be slightly cooler than the average low of 16.7°C.

On Sunday, in Kosai, sunrise will be at 06:10 and sunset at 16:56 (JST).

Tomorrow, the daylight will last for 10h and 47min.