Koya weather live forecast

Today's maximum temperature in Koya is expected to be 17°C. Select a day from the live weather forecast for Koya, Japan for more weather parameters.

Monday
6th Apr
17

6

5

5
Tuesday
7th Apr
13

1

1

1
Wednesday
8th Apr
12

1

12

6
Thursday
9th Apr
14

2

5

7
Friday
10th Apr
16

10

0

1

5-day weather forecast updated at 04:02 on Monday 6th 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 Monday 6th April 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 17°C, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the south-west.

17
°C maximum temperature
6
°C minimum temperature
broken clouds
5
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
6
kph wind from SW

Koya weather for Tuesday 7th April 2026

Expect mostly cloudy with rain in Koya, Japan with a maximum temperature of 13°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 85% chance of some rain and a light breeze of 11 kph from the north.

13
°C maximum temperature
1
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
1
UV index (Low)
85
% chance of some rain
<10
mm of rainfall expected
13
°C wind chill
11
kph wind from N

Koya weather for Wednesday 8th April 2026

Expect scattered clouds in Koya, Japan with a maximum temperature of 12°C, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the north.

12
°C maximum temperature
1
°C minimum temperature
scattered clouds
12
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
9
kph wind from N

Koya weather for Thursday 9th April 2026

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 14°C, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 77% chance of some rain and a light breeze of 9 kph from the south.

14
°C maximum temperature
2
°C minimum temperature
mostly cloudy with light rain
5
hours of sunshine
7
UV index (High)
77
% chance of some rain
<2
mm of rainfall expected
14
°C wind chill
9
kph wind from S

Koya weather for Friday 10th April 2026

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 16°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 30-40 mm of rainfall expected with 100% chance of some rain and a light breeze of 10 kph from the south.