Koya weather live forecast

Today's maximum temperature in Koya is expected to be 27°C. 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

Luxury Escapes: Top handpicked holiday deals

  • Explore top handpicked deals on luxury holidays
  • Sign up for free to receive exclusive deals daily
  • Book holidays to destinations around the world
Go to Luxury Escapes deal >>

View all Luxury Escapes 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 Wednesday 23rd July 2025

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 46% chance of some rain and little or no wind of 3 kph from the south-east.

  • 27°C maximum temperature27
    °C maximum temperature
  • 21°C minimum temperature21
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 46% chance of some rain46
    % 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 kph from the South-East3
    kph wind from SE

Back to top

Koya weather for Thursday 24th July 2025

Expect broken clouds in Koya, Japan with a maximum temperature of 29°C, 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 4 kph from the south-east.

  • 29°C maximum temperature29
    °C maximum temperature
  • 20°C minimum temperature20
    °C 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 4 kph from the South-East4
    kph wind from SE

Back to top

Koya weather for Friday 25th July 2025

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 28°C, 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 7 kph from the south-east.

  • 28°C maximum temperature28
    °C maximum temperature
  • 19°C minimum temperature19
    °C 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 7 kph from the South-East7
    kph wind from SE

Back to top

Koya weather for Saturday 26th July 2025

Expect scattered clouds in Koya, Japan with a maximum temperature of 27°C, 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 9 kph from the south-east.

  • 27°C maximum temperature27
    °C maximum temperature
  • 19°C minimum temperature19
    °C 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 9 kph from the South-East9
    kph wind from SE

Back to top

Koya weather for Sunday 27th July 2025

Expect broken clouds in Koya, Japan with a maximum temperature of 28°C, 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 7 kph from the south-east.

  • 28°C maximum temperature28
    °C maximum temperature
  • 19°C minimum temperature19
    °C 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 7 kph from the South-East7
    kph wind from SE

Back to top

Iglu Ski: Top deals on winter 2025

  • Book skiing holidays for winter 2025
  • Save on holidays with special offers & discounts
  • Filter deals by price, resort, property type & more
Go to Iglu Ski deal >>

View all Iglu Ski offers

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

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 ^