Koya weather live forecast

Tomorrow's maximum temperature in Koya is expected to be 79°F.

5-day weather forecast updated at 04:03 on Friday 11th July 2025 GMT

More about Koya

Koya by month

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

Recommended for Japan

Wendy Wu Tours: Top deals on Far East

  • Book tours to China, Japan, Mongolia, South Korea & Taiwan
  • Browse tours by country + check things to do
  • Fully ABTA & ATOL protected escorted tours
Go to Wendy Wu Tours deal >>

View all Wendy Wu Tours 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 Friday 11th July 2025

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 89% chance of some rain and little or no wind of 3 mph from the south-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 7 (High)7
    UV index (High)
  • 89% chance of some rain89
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    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

Back to top

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 2-5 mm of rainfall expected with 64% chance of some rain and little or no wind of 2 mph from the south-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)
  • 64% chance of some rain64
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Little or no wind of 2 mph from the South-East2
    mph wind from SE

Back to top

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 7 (High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 62% chance of some rain and little or no wind of 4 mph from the south-east.

  • 81°F maximum temperature81
    °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 7 (High)7
    UV index (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 4 mph from the South-East4
    mph wind from SE

Back to top

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 6 (High) and 7 hours of bright sunshine. There are 10-20 mm of rainfall expected with 82% chance of some rain and a light breeze of 5 mph from the south-east.

  • 79°F maximum temperature79
    °F maximum temperature
  • 68°F minimum temperature68
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 82% chance of some rain82
    % 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 South-East5
    mph wind from SE

Back to top

Koya weather for Tuesday 15th July 2025

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 77°F, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 50 mm or more of rainfall expected with 77% chance of some rain and a light breeze of 6 mph from the south-east.

  • 77°F maximum temperature77
    °F maximum temperature
  • 68°F minimum temperature68
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 77% chance of some rain77
    % chance of some rain
  • 50 mm or more of rainfall expected>50
    mm or more of rainfall expected
  • 77°F wind chill77
    °F wind chill
  • Light breeze of 6 mph from the South-East6
    mph wind from SE

Back to top

Cosmos: up to £400 savings on 2026 tours

  • Save up to £400 per couple on worldwide tours in 2026
  • Book tours to Europe, Asia, Africa, Americas & beyond
  • Travel between 1st Jan & 31st Dec 2026 (inclusive)
Go to Cosmos deal >>

Expires at 23:59 on Wednesday 3rd Sep 2025 · View all Cosmos 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 ^