Koya weather live forecast

Today's maximum temperature in Koya is expected to be 18°C. Select a day from the live weather forecast for Koya, Japan for more weather parameters.

Wednesday
22nd Apr
18

1

3

7
Thursday
23rd Apr
13

9

0

1
Friday
24th Apr
13

6

4

6
Saturday
25th Apr
15

5

5

6
Sunday
26th Apr
14

7

1

6

5-day weather forecast updated at 04:02 on Wednesday 22nd April 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 22nd April 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 18°C, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the south-east.

18
°C maximum temperature
1
°C minimum temperature
broken clouds
3
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
18
°C wind chill
5
kph wind from SE

Koya weather for Thursday 23rd April 2026

Expect cloudy with some rain in Koya, Japan with a maximum temperature of 13°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 30-40 mm of rainfall expected with 92% chance of some rain and a light breeze of 7 kph from the east.

13
°C maximum temperature
9
°C minimum temperature
cloudy with some rain
0
hours of sunshine
1
UV index (Low)
92
% chance of some rain
<40
mm of rainfall expected
13
°C wind chill
7
kph wind from E

Koya weather for Friday 24th April 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 13°C, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the north.

13
°C maximum temperature
6
°C minimum temperature
broken clouds
4
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
6
kph wind from N

Koya weather for Saturday 25th April 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 15°C, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the south-east.

15
°C maximum temperature
5
°C minimum temperature
broken clouds
5
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
7
kph wind from SE

Koya weather for Sunday 26th April 2026

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 14°C, maximum UV of 6 (High) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 61% chance of some rain and a light breeze of 8 kph from the south-east.