Koya weather live forecast

Tomorrow's maximum temperature in Koya is expected to be 14°C.

  • Monday
    12th May
    Mostly cloudy with light rain (0-2 mm of rainfall expected)
  • Tuesday
    13th May
    Scattered clouds
  • Wednesday
    14th May
    Broken clouds
  • Thursday
    15th May
    Broken clouds
  • Friday
    16th May
    Sunshine and showers (0-2 mm of rainfall expected)

5-day weather forecast updated at 04:02 on Monday 12th May 2025 GMT

More about Koya

Koya by month

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

Recommended for Japan

  • Check out top deals on tours to Japan
  • Explore places to visit & most popular itineraries
  • Filter deals by experience, duration, level & price

Wild FrontiersTour deal finder

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 Monday 12th May 2025

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 14°C, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 4% chance of some rain and a light breeze of 7 kph from the north-west.

  • 14°C maximum temperature14
    °C maximum temperature
  • 9°C minimum temperature9
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 4% chance of some rain4
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 7 kph from the North-West7
    kph wind from NW

Back to top

Koya weather for Tuesday 13th May 2025

Expect scattered clouds in Koya, Japan with a maximum temperature of 21°C, maximum UV of 8 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north.

  • 21°C maximum temperature21
    °C maximum temperature
  • 9°C minimum temperature9
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 11 hours of bright sunshine11
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 21°C wind chill21
    °C wind chill
  • Little or no wind of 5 kph from the North5
    kph wind from N

Back to top

Koya weather for Wednesday 14th May 2025

Expect broken clouds in Koya, Japan with a maximum temperature of 21°C, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 kph from the south-east.

  • 21°C maximum temperature21
    °C maximum temperature
  • 10°C minimum temperature10
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Little or no wind of 3 kph from the South-East3
    kph wind from SE

Back to top

Koya weather for Thursday 15th May 2025

Expect broken clouds in Koya, Japan with a maximum temperature of 20°C, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the south.

  • 20°C maximum temperature20
    °C maximum temperature
  • 10°C minimum temperature10
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 20°C wind chill20
    °C wind chill
  • Little or no wind of 5 kph from the South5
    kph wind from S

Back to top

Koya weather for Friday 16th May 2025

Expect sunshine and showers in Koya, Japan with a maximum temperature of 22°C, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 55% chance of some rain and little or no wind of 4 kph from the south-east.

  • 22°C maximum temperature22
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 55% chance of some rain55
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Little or no wind of 4 kph from the South-East4
    kph wind from SE

Back to top

  • Check out top deals on tours to Japan
  • Explore places to visit & most popular itineraries
  • Filter deals by experience, duration, level & price

Wild FrontiersTour deal finder

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 ^