Weather forecast for tomorrowChatan, Japan

Weather forecast for tomorrow

Friday 23. Oct 2026

  • 29°C
  • 26°C
Showers / Wind
Showers / Wind
  • Precip. probability: 44%
  • Precipitation: 34mm
  • Wind: 46km/hESE 121°
  • Humidity: 85%
  • UV index: 3
  • Sunrise: 06:32 JST
  • Sunset: 17:54 JST
  • ▼
On Friday, October 23, expect light-to-moderate rainfall and windy weather also throughout the day.
Intense precipitation of 34mm is anticipated for tomorrow. A modest fluctuation in temperature is expected, achieving a maximum of a warm 29°C and dipping to a minimum of a temperate 26°C.
The maximum heat index, which combines air temperature and relative humidity, is appraised at a torrid 36°C. Take into consideration that the heat index values are calculated for shade and light wind conditions. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
The high temperature will be a couple of degrees higher than the typical October level of 26.4°C.
Sunrise will be at 06:32 and sunset at 17:54; tomorrow's daylight will last for 11h and 22min.

Hourly overview

Hourly temperatures

Warmest hour: 12h 34°C.
Coldest period: 0h - 6h 30°C.

Chance of precipitation

Highest chance: 3h 55%.

Hourly weather forecast

  • 0h
  • 26°C
  • Feels like:
    30°C
Showers / Wind
Showers / Wind
  • Precip. probability: 53%
  • Precipitation: 2mm
  • Wind: 38km/hE 93°
  • Humidity: 91%
  • Pressure: 1011mbar
  • Visibility: 10km
  • UV index: 0
  • ▼
  • 2h
  • 26°C
  • Feels like:
    30°C
Showers / Wind
Showers / Wind
  • Precip. probability: 53%
  • Precipitation: 1mm
  • Wind: 37km/hE 100°
  • Humidity: 90%
  • Pressure: 1009mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
  • 4h
  • 26°C
  • Feels like:
    30°C
Showers / Wind
Showers / Wind
  • Precip. probability: 48%
  • Precipitation: 1mm
  • Wind: 36km/hESE 106°
  • Humidity: 90%
  • Pressure: 1009mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
  • 6h
  • 26°C
  • Feels like:
    30°C
Cloudy / Wind
Cloudy / Wind
  • Precip. probability: 24%
  • Precipitation: 0mm
  • Wind: 38km/hESE 110°
  • Humidity: 89%
  • Pressure: 1009mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Sunrise: 06:32
  • 8h
  • 27°C
  • Feels like:
    31°C
Showers / Wind
Showers / Wind
  • Precip. probability: 35%
  • Precipitation: 1mm
  • Wind: 39km/hESE 110°
  • Humidity: 87%
  • Pressure: 1009mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
  • 10h
  • 28°C
  • Feels like:
    33°C
Showers / Wind
Showers / Wind
  • Precip. probability: 36%
  • Precipitation: 1mm
  • Wind: 44km/hESE 115°
  • Humidity: 84%
  • Pressure: 1010mbar
  • Visibility: 11km
  • UV index: 2
  • ▼
  • 12h
  • 28°C
  • Feels like:
    34°C
Showers / Wind
Showers / Wind
  • Precip. probability: 38%
  • Precipitation: 1mm
  • Wind: 44km/hESE 121°
  • Humidity: 81%
  • Pressure: 1009mbar
  • Visibility: 11km
  • UV index: 3
  • ▼
  • 14h
  • 28°C
  • Feels like:
    33°C
Showers / Wind
Showers / Wind
  • Precip. probability: 45%
  • Precipitation: 1mm
  • Wind: 44km/hSE 127°
  • Humidity: 84%
  • Pressure: 1008mbar
  • Visibility: 11km
  • UV index: 3
  • ▼
  • 16h
  • 28°C
  • Feels like:
    33°C
Few Showers / Wind
Few Showers / Wind
  • Precip. probability: 33%
  • Precipitation: 1mm
  • Wind: 43km/hSE 129°
  • Humidity: 85%
  • Pressure: 1008mbar
  • Visibility: 16km
  • UV index: 1
  • ▼
Sunset: 17:54
  • 18h
  • 27°C
  • Feels like:
    32°C
Cloudy / Wind
Cloudy / Wind
  • Precip. probability: 24%
  • Precipitation: 0mm
  • Wind: 39km/hSE 131°
  • Humidity: 87%
  • Pressure: 1009mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 20h
  • 27°C
  • Feels like:
    31°C
Showers / Wind
Showers / Wind
  • Precip. probability: 47%
  • Precipitation: 1mm
  • Wind: 40km/hSE 135°
  • Humidity: 88%
  • Pressure: 1010mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
  • 22h
  • 27°C
  • Feels like:
    31°C
Few Showers / Wind
Few Showers / Wind
  • Precip. probability: 33%
  • Precipitation: 1mm
  • Wind: 39km/hSE 137°
  • Humidity: 88%
  • Pressure: 1010mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Tomorrow, on Friday, a combination of primarily rain-filled and occasionally overcast and thunderstorm-prone weather is anticipated.
Rainfall is expected from midnight to 5h, and from 8h to 16h, and from 19h to 23h. With light precipitation of 2mm, most rainfall is expected at midnight.
The temperature difference throughout the day will be unnoticeable, with a minimum of 26°C and a maximum of 28°C. The feels-like temperature will be between a minimum of 30°C and a maximum of 34°C. The warmest part of the day will be from 9h to 16h.
The temperature is expected to be relatively higher than the average peak in October, which is 26.4°C. The expected low will be also alike with the average minimum in October, which is 25°C.
Updated: Oct 21, 2026 @ 16:25:40 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Friday, there will be showers with strong winds later in the day.

Yes, it will rain tomorrow. Be wary - intense precipitation of 34mm is predicted.

Tomorrow, the highest temperature will be 29°C, while the lowest temperature will be 26°C. The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is assessed at 36°C.
The highest temperature will be relatively higher than the average maximum of 26.4°C in October. The lowest temperature will be in line with the average low of 25°C.

On Friday, in Chatan, sunrise will be at 06:32 and sunset at 17:54 (JST).

In Chatan, Japan, tomorrow, there will be 11h and 22min of daylight.