Koya weather live forecast

Tomorrow's maximum temperature in Koya is expected to be 77°F.

5-day weather forecast updated at 04:03 on Thursday 10th July 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 11th July 2025

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 77°F, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 65% chance of some rain and little or no wind of 4 mph from the east.

  • 77°F maximum temperature77
    °F maximum temperature
  • 68°F minimum temperature68
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 65% chance of some rain65
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Little or no wind of 4 mph from the East4
    mph wind from E

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Koya weather for Saturday 12th July 2025

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 62% chance of some rain and little or no wind of 3 mph from the east.

  • 79°F maximum temperature79
    °F maximum temperature
  • 68°F minimum temperature68
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 62% chance of some rain62
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Little or no wind of 3 mph from the East3
    mph wind from E

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Koya weather for Sunday 13th July 2025

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 64% chance of some rain and little or no wind of 3 mph from the south-east.

  • 81°F maximum temperature81
    °F maximum temperature
  • 66°F minimum temperature66
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 64% chance of some rain64
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Little or no wind of 3 mph from the South-East3
    mph wind from SE

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Koya weather for Monday 14th July 2025

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 73% chance of some rain and little or no wind of 3 mph from the south-east.

  • 79°F maximum temperature79
    °F maximum temperature
  • 66°F minimum temperature66
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 73% chance of some rain73
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Little or no wind of 3 mph from the South-East3
    mph wind from SE

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Koya weather for Tuesday 15th July 2025

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 61% chance of some rain and a light breeze of 5 mph from the south.

  • 81°F maximum temperature81
    °F maximum temperature
  • 66°F minimum temperature66
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 61% chance of some rain61
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 5 mph from the South5
    mph wind from S

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  • Latest flight offers & special deals from Lufthansa
  • Flights to Germany (including Frankfurt & Munich)
  • Plus destinations across Europe and around the world
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Metric (°C)  |  Imperial (°F)

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