Koya weather live forecast

Today's maximum temperature in Koya is expected to be 21°C. Select a day from the live weather forecast for Koya, Japan for more weather parameters.

Thursday
1st Oct
21

13

11

7
Friday
2nd Oct
18

11

6

7
Saturday
3rd Oct
19

10

8

7
Sunday
4th Oct
17

13

0

1
Monday
5th Oct
18

14

0

4

5-day weather forecast updated at 04:03 on Thursday 1st October 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 Thursday 1st October 2026

Expect scattered clouds in Koya, Japan with a maximum temperature of 21°C, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the north.

21
°C maximum temperature
13
°C minimum temperature
scattered clouds
11
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
7
kph wind from N

Koya weather for Friday 2nd October 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 18°C, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north.

18
°C maximum temperature
11
°C minimum temperature
broken clouds
6
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
10
kph wind from N

Koya weather for Saturday 3rd October 2026

Expect scattered clouds in Koya, Japan with a maximum temperature of 19°C, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the north.

19
°C maximum temperature
10
°C minimum temperature
scattered clouds
8
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
19
°C wind chill
6
kph wind from N

Koya weather for Sunday 4th October 2026

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 17°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 67% chance of some rain and little or no wind of 6 kph from the south-east.

17
°C maximum temperature
13
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
1
UV index (Low)
67
% chance of some rain
<5
mm of rainfall expected
17
°C wind chill
6
kph wind from SE

Koya weather for Monday 5th October 2026

Expect mostly cloudy with rain in Koya, Japan with a maximum temperature of 18°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 58% chance of some rain and a light breeze of 7 kph from the south-east.