Weather forecast for todayKoshihara, Japan

Weather forecast for today

Current condition 05:20 JST

  • 26°C
  • Feels like:
    29°C
Clear
Clear
  • Precipitation: 0mm
  • Wind: 11km/hENE 70°
  • Humidity: 86%
  • Dewpoint: 23°C
  • Pressure: 1016.26mbar
  • Visibility: 14.48km
  • UV index: 0
  • ▼
At the moment, a vast expanse of clear blue stretches overhead.
The temperature is a warm 26°C, with the felt air temperature being computed to be a temperate 29°C. The present temperature is at its lowest of the day.

Tuesday 20. Oct 2026

  • 30°C
  • 26°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 19km/hENE 69°
  • Humidity: 79%
  • UV index: 8
  • Sunrise: 06:30 JST
  • Sunset: 17:57 JST
  • ▼
Today, in Koshihara, some passing clouds may drift through, but the sun will shine at times.
Minor temperature shifts from a high of a blazing 30°C to a low of a temperate 26°C are anticipated.
The maximum heat index, which adjusts the air temperature based on humidity, is assessed at a torrid 37°C. Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
The temperature of 30°C aligns more with what is typical in September than what is normal in October.
Sunrise will be at 06:30 and sunset at 17:57; the daylight will last for 11h and 27min.

Hourly overview

Hourly temperatures

Warmest hour: 14h 35°C.
Coldest hour: 6h 29°C.

Chance of precipitation

Highest chance: 10h 7%.

Hourly weather forecast

  • 6h
  • 26°C
  • Feels like:
    29°C
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Wind: 12km/hENE 70°
  • Humidity: 87%
  • Pressure: 1016mbar
  • Visibility: 15km
  • UV index: 0
  • ▼
Sunrise: 06:30
  • 8h
  • 27°C
  • Feels like:
    31°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 14km/hENE 69°
  • Humidity: 83%
  • Pressure: 1017mbar
  • Visibility: 16km
  • UV index: 1
  • ▼
  • 10h
  • 28°C
  • Feels like:
    33°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 16km/hENE 74°
  • Humidity: 80%
  • Pressure: 1017mbar
  • Visibility: 16km
  • UV index: 5
  • ▼
  • 12h
  • 29°C
  • Feels like:
    34°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0mm
  • Wind: 17km/hENE 76°
  • Humidity: 77%
  • Pressure: 1016mbar
  • Visibility: 16km
  • UV index: 8
  • ▼
  • 14h
  • 29°C
  • Feels like:
    35°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 14km/hENE 62°
  • Humidity: 73%
  • Pressure: 1015mbar
  • Visibility: 16km
  • UV index: 5
  • ▼
  • 16h
  • 29°C
  • Feels like:
    33°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 16km/hENE 57°
  • Humidity: 74%
  • Pressure: 1014mbar
  • Visibility: 16km
  • UV index: 1
  • ▼
Sunset: 17:57
  • 18h
  • 28°C
  • Feels like:
    32°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0mm
  • Wind: 19km/hENE 73°
  • Humidity: 80%
  • Pressure: 1015mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 20h
  • 27°C
  • Feels like:
    31°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 17km/hENE 66°
  • Humidity: 83%
  • Pressure: 1016mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 22h
  • 27°C
  • Feels like:
    31°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 15km/hENE 69°
  • Humidity: 87%
  • Pressure: 1016mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Today, in Koshihara, primarily cloud-filled and occasionally sun-filled weather is expected.
The temperature will vary between the highest temperature of 29°C and the lowest temperature of 26°C. The feels-like temperature will be between the lowest temperature of 29°C and the highest temperature of 35°C. The hottest part of the day will be from 11h to 16h.
The highest temperature is more resembling September's average maximum of 28.5°C than October's usual of 26.5°C. The lowest temperature is comparable to October's typical minimum of 25.2°C.
Updated: Oct 19, 2026 @ 20:20:35 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The temperature at 05:20 JST is 26°C. Feels-like temperature is 29°C.

On Tuesday, a mix of clouds and blue sky is expected.

Today, the highest temperature will be 30°C, while the lowest temperature will be 26°C. The maximum heat index, which combines relative humidity and air temperature, is assessed at 37°C.
The highest temperature will be a few degrees higher than the average maximum of 26.5°C in October. The lowest temperature will be in line with the average low of 25.2°C.

On Tuesday, in Koshihara, sunrise will be at 06:30 and sunset at 17:57 (JST).

In Koshihara, the length of the day today will be 11h and 27min.