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.

Sunday
12th Apr
17

8

8

8
Monday
13th Apr
19

9

3

6
Tuesday
14th Apr
19

10

1

7
Wednesday
15th Apr
14

10

0

2
Thursday
16th Apr
16

7

8

8

5-day weather forecast updated at 04:02 on Sunday 12th 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 Sunday 12th April 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 17°C, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north.

17
°C maximum temperature
8
°C minimum temperature
broken clouds
8
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
5
kph wind from N

Koya weather for Monday 13th April 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 19°C, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 kph from the north-west.

19
°C maximum temperature
9
°C minimum temperature
broken clouds
3
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
3
kph wind from NW

Koya weather for Tuesday 14th April 2026

Expect overcast skies in Koya, Japan with a maximum temperature of 19°C, maximum UV of 7 (High) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the south-east.

19
°C maximum temperature
10
°C minimum temperature
overcast skies
1
hour of sunshine
7
UV index (High)
0
mm of rainfall expected
19
°C wind chill
5
kph wind from SE

Koya weather for Wednesday 15th April 2026

Expect cloudy with some rain in Koya, Japan with a maximum temperature of 14°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 81% chance of some rain and a light breeze of 7 kph from the south-east.

14
°C maximum temperature
10
°C minimum temperature
cloudy with some rain
0
hours of sunshine
2
UV index (Low)
81
% chance of some rain
<20
mm of rainfall expected
14
°C wind chill
7
kph wind from SE

Koya weather for Thursday 16th April 2026

Expect sunshine and showers in Koya, Japan with a maximum temperature of 16°C, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 2-5 mm of rainfall expected with 23% chance of some rain and a light breeze of 9 kph from the north.