Koya weather live forecast

Today's maximum temperature in Koya is expected to be 84°F. Select a day from the live weather forecast for Koya, Japan for more weather parameters.

5-day weather forecast updated at 04:03 on Wednesday 23rd July 2025 GMT

More about Koya

Koya by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Japan

Marriott: Best price match gurantee for members

  • Join Marriott Bonvoy for the best rates on hotel stays
  • Exclusive membership perks & additional benefits
  • Includes discounts, upgrades & earn points free stays
Go to Marriott deal >>

View all Marriott offers

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 Thursday 24th July 2025

Expect broken clouds in Koya, Japan with a maximum temperature of 84°F, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 2 mph from the south-east.

  • 84°F maximum temperature84
    °F maximum temperature
  • 68°F minimum temperature68
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Little or no wind of 2 mph from the South-East2
    mph wind from SE

Back to top

Koya weather for Friday 25th July 2025

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 82°F, low levels of heat & humidity, maximum UV of 10 (Very High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 32% chance of some rain and a light breeze of 4 mph from the south-east.

  • 82°F maximum temperature82
    °F maximum temperature
  • 66°F minimum temperature66
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 32% chance of some rain32
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 4 mph from the South-East4
    mph wind from SE

Back to top

Koya weather for Saturday 26th July 2025

Expect scattered clouds in Koya, Japan with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the south-east.

  • 81°F maximum temperature81
    °F maximum temperature
  • 66°F minimum temperature66
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 6 mph from the South-East6
    mph wind from SE

Back to top

Koya weather for Sunday 27th July 2025

Expect broken clouds in Koya, Japan with a maximum temperature of 82°F, low levels of heat & humidity, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 4 mph from the south-east.

  • 82°F maximum temperature82
    °F maximum temperature
  • 66°F minimum temperature66
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 4 mph from the South-East4
    mph wind from SE

Back to top

Koya weather for Monday 28th July 2025

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 84°F, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 42% chance of some rain and little or no wind of 4 mph from the east.

  • 84°F maximum temperature84
    °F maximum temperature
  • 66°F minimum temperature66
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 42% chance of some rain42
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Little or no wind of 4 mph from the East4
    mph wind from E

Back to top

Avalon Waterways: Current offers on 2025 river cruises

  • Save on river cruises in 2025 with Avalon Waterways
  • Book river cruises in Europe, Asia, Africa & Americas
  • Filter deals by promotion, month, destination & more
Go to Avalon Waterways deal >>

Expires at 23:59 on Wednesday 31st Dec 2025 · View all Avalon Waterways offers

Metric (°C)  |  Imperial (°F)

Back to top

More about Japan

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^