Koya weather live forecast

Tomorrow's maximum temperature in Koya is expected to be 21°C.

5-day weather forecast updated at 04:02 on Sunday 8th June 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 Sunday 8th June 2025

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 44% chance of some rain and little or no wind of 4 kph from the south-east.

  • 21°C maximum temperature21
    °C maximum temperature
  • 15°C minimum temperature15
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 44% chance of some rain44
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 21°C wind chill21
    °C wind chill
  • Little or no wind of 4 kph from the South-East4
    kph wind from SE

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Koya weather for Monday 9th June 2025

Expect overcast with light rain in Koya, Japan with a maximum temperature of 17°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 88% chance of some rain and little or no wind of 5 kph from the south-east.

  • 17°C maximum temperature17
    °C maximum temperature
  • 14°C minimum temperature14
    °C minimum temperature
  • Overcast with light rain
    overcast with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 88% chance of some rain88
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 17°C wind chill17
    °C wind chill
  • Little or no wind of 5 kph from the South-East5
    kph wind from SE

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Koya weather for Tuesday 10th June 2025

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 20°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 98% chance of some rain and a light breeze of 9 kph from the south-west.

  • 20°C maximum temperature20
    °C maximum temperature
  • 16°C minimum temperature16
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 98% chance of some rain98
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 9 kph from the South-West9
    kph wind from SW

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Koya weather for Wednesday 11th June 2025

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 22°C, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 20-30 mm of rainfall expected with 93% chance of some rain and a light breeze of 8 kph from the south-west.

  • 22°C maximum temperature22
    °C maximum temperature
  • 16°C minimum temperature16
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 93% chance of some rain93
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • 22°C wind chill22
    °C wind chill
  • Light breeze of 8 kph from the South-West8
    kph wind from SW

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Koya weather for Thursday 12th June 2025

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 22°C, maximum UV of 5 (Moderate) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 57% chance of some rain and little or no wind of 5 kph from the north-west.

  • 22°C maximum temperature22
    °C maximum temperature
  • 16°C minimum temperature16
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 57% chance of some rain57
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 22°C wind chill22
    °C wind chill
  • Little or no wind of 5 kph from the North-West5
    kph wind from NW

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

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