Koya weather live forecast

Tomorrow's maximum temperature in Koya is expected to be 23°C.

5-day weather forecast updated at 04:02 on Sunday 15th June 2025 GMT

More about Koya

Koya by month

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

Recommended for Japan

Travelbag sale: up to 50% off select hotels & resorts

  • Save up to 50% on holidays to select hotels & resorts
  • Book beach holidays, city breaks & tours in 2025/2026
  • Destinations across Europe, Americas, Asia, Africa & beyond
Go to Travelbag deal >>

Expires at 23:59 on Monday 30th Jun 2025 · View all Travelbag offers

TravelbagHoliday 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 Sunday 15th June 2025

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 23°C, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 78% chance of some rain and a light breeze of 11 kph from the west.

  • 23°C maximum temperature23
    °C maximum temperature
  • 20°C minimum temperature20
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 78% chance of some rain78
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 23°C wind chill23
    °C wind chill
  • Light breeze of 11 kph from the West11
    kph wind from W

Back to top

Koya weather for Monday 16th June 2025

Expect broken clouds in Koya, Japan with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-west.

  • 27°C maximum temperature27
    °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 10 (Very High)10
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 11 kph from the South-West11
    kph wind from SW

Back to top

Koya weather for Tuesday 17th June 2025

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 29% chance of some rain and a light breeze of 8 kph from the west.

  • 27°C maximum temperature27
    °C maximum temperature
  • 19°C minimum temperature19
    °C 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)
  • 29% chance of some rain29
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 8 kph from the West8
    kph wind from W

Back to top

Koya weather for Wednesday 18th June 2025

Expect scattered clouds in Koya, Japan with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the north-west.

  • 28°C maximum temperature28
    °C maximum temperature
  • 18°C minimum temperature18
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 12 hours of bright sunshine12
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    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 North-West7
    kph wind from NW

Back to top

Koya weather for Thursday 19th June 2025

Expect scattered clouds in Koya, Japan with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the north.

  • 28°C maximum temperature28
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 10 hours of bright sunshine10
    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
  • Little or no wind of 6 kph from the North6
    kph wind from N

Back to top

Travelbag sale: up to 50% off select hotels & resorts

  • Save up to 50% on holidays to select hotels & resorts
  • Book beach holidays, city breaks & tours in 2025/2026
  • Destinations across Europe, Americas, Asia, Africa & beyond
Go to Travelbag deal >>

Expires at 23:59 on Monday 30th Jun 2025 · View all Travelbag offers

TravelbagHoliday 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 ^