Koya weather live forecast

Today's maximum temperature in Koya is expected to be 19°C. Select a day from the live weather forecast for Koya, Japan for more weather parameters.

Monday
13th Apr
19

7

2

5
Tuesday
14th Apr
18

9

1

8
Wednesday
15th Apr
14

11

0

2
Thursday
16th Apr
16

8

7

9
Friday
17th Apr
15

6

1

8

5-day weather forecast updated at 04:02 on Monday 13th 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 13th April 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 2 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
7
°C minimum temperature
broken clouds
2
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
3
kph wind from NW

Koya weather for Tuesday 14th April 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 18°C, maximum UV of 8 (Very 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.

18
°C maximum temperature
9
°C minimum temperature
broken clouds
1
hour of sunshine
8
UV index (Very High)
0
mm of rainfall expected
18
°C wind chill
5
kph wind from SE

Koya weather for Wednesday 15th April 2026

Expect mostly cloudy with 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 86% chance of some rain and little or no wind of 6 kph from the south-east.

14
°C maximum temperature
11
°C minimum temperature
mostly cloudy with rain
0
hours of sunshine
2
UV index (Low)
86
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
6
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 9 (Very High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 24% chance of some rain and a light breeze of 8 kph from the north.

16
°C maximum temperature
8
°C minimum temperature
sunshine and showers
7
hours of sunshine
9
UV index (Very High)
24
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
8
kph wind from N

Koya weather for Friday 17th April 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 15°C, maximum UV of 8 (Very High) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the south-east.