Koya weather live forecast

Today's maximum temperature in Koya is expected to be 20°C. Select a day from the live weather forecast for Koya, Japan for more weather parameters.

Wednesday
10th Jun
20

11

10

10
Thursday
11th Jun
22

12

7

9
Friday
12th Jun
22

13

11

8
Saturday
13th Jun
22

12

6

7
Sunday
14th Jun
19

14

1

5

5-day weather forecast updated at 04:02 on Wednesday 10th June 2026 GMT

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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 10th June 2026

Expect scattered clouds in Koya, Japan with a maximum temperature of 20°C, maximum UV of 10 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the north.

20
°C maximum temperature
11
°C minimum temperature
scattered clouds
10
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
20
°C wind chill
7
kph wind from N

Koya weather for Thursday 11th June 2026

Expect scattered clouds in Koya, Japan with a maximum temperature of 22°C, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north-west.

22
°C maximum temperature
12
°C minimum temperature
scattered clouds
7
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
22
°C wind chill
5
kph wind from NW

Koya weather for Friday 12th June 2026

Expect scattered clouds in Koya, Japan with a maximum temperature of 22°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 west.

22
°C maximum temperature
13
°C minimum temperature
scattered clouds
11
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
22
°C wind chill
5
kph wind from W

Koya weather for Saturday 13th June 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 22°C, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 kph from the west.

22
°C maximum temperature
12
°C minimum temperature
broken clouds
6
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
4
kph wind from W

Koya weather for Sunday 14th June 2026

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 50% chance of some rain and a light breeze of 8 kph from the south-east.