Koya weather live forecast

Today's maximum temperature in Koya is expected to be 8°C. Select a day from the live weather forecast for Koya, Japan for more weather parameters.

  • Friday
    28th Nov
    Mostly cloudy with light rain (2-5 mm of rainfall expected)
  • Saturday
    29th Nov
    Scattered clouds
  • Sunday
    30th Nov
    Clear skies
  • Monday
    1st Dec
    Broken clouds
  • Tuesday
    2nd Dec
    Broken clouds

5-day weather forecast updated at 04:03 on Thursday 27th November 2025 GMT

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The 5-day weather forecast for Japan (Koya) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Koya weather forecast by day

Below are the detailed weather forecasts for Koya for the next 5 days.

Koya weather for Friday 28th November 2025

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 8°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 15% chance of some rain and a light breeze of 12 kph from the north-west.

  • 8°C maximum temperature8
    °C maximum temperature
  • 2°C minimum temperature2
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 15% chance of some rain15
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 5°C wind chill5
    °C wind chill
  • Light breeze of 12 kph from the North-West12
    kph wind from NW

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Koya weather for Saturday 29th November 2025

Expect scattered clouds in Koya, Japan with a maximum temperature of 9°C, maximum UV of 3 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north.

  • 9°C maximum temperature9
    °C maximum temperature
  • 0°C minimum temperature0
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 9°C wind chill9
    °C wind chill
  • Little or no wind of 5 kph from the North5
    kph wind from N

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Koya weather for Sunday 30th November 2025

Expect clear skies in Koya, Japan with a maximum temperature of 12°C, maximum UV of 3 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 kph from the south.

  • 12°C maximum temperature12
    °C maximum temperature
  • 1°C minimum temperature1
    °C minimum temperature
  • Clear skies
    clear skies
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Little or no wind of 4 kph from the South4
    kph wind from S

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Koya weather for Monday 1st December 2025

Expect broken clouds in Koya, Japan with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the north-west.

  • 13°C maximum temperature13
    °C maximum temperature
  • 5°C minimum temperature5
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Little or no wind of 6 kph from the North-West6
    kph wind from NW

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Koya weather for Tuesday 2nd December 2025

Expect broken clouds in Koya, Japan with a maximum temperature of 12°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the west.

  • 12°C maximum temperature12
    °C maximum temperature
  • 4°C minimum temperature4
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 12°C wind chill12
    °C wind chill
  • Light breeze of 7 kph from the West7
    kph wind from W

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Metric (°C / mm)  |  Imperial (°F / inches)

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