Koya weather live forecast

Today's maximum temperature in Koya is expected to be 24°C. Select a day from the live weather forecast for Koya, Japan for more weather parameters.

Friday
3rd Jul
24

15

7

9
Saturday
4th Jul
21

17

1

7
Sunday
5th Jul
22

18

2

4
Monday
6th Jul
23

19

3

8
Tuesday
7th Jul
24

20

5

10

5-day weather forecast updated at 04:03 on Thursday 2nd July 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 Friday 3rd July 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 24°C, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north.

24
°C maximum temperature
15
°C minimum temperature
broken clouds
7
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
24
°C wind chill
5
kph wind from N

Koya weather for Saturday 4th July 2026

Expect mostly cloudy with rain in Koya, Japan with a maximum temperature of 21°C, maximum UV of 7 (High) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 80% chance of some rain and little or no wind of 4 kph from the south.

21
°C maximum temperature
17
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
7
UV index (High)
80
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
4
kph wind from S

Koya weather for Sunday 5th July 2026

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 22°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 20-30 mm of rainfall expected with 82% chance of some rain and little or no wind of 4 kph from the south.

22
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
4
UV index (Moderate)
82
% chance of some rain
<30
mm of rainfall expected
22
°C wind chill
4
kph wind from S

Koya weather for Monday 6th July 2026

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 23°C, maximum UV of 8 (Very High) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 69% chance of some rain and little or no wind of 5 kph from the south-west.

23
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
8
UV index (Very High)
69
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
5
kph wind from SW

Koya weather for Tuesday 7th July 2026

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 24°C, maximum UV of 10 (Very High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 58% chance of some rain and little or no wind of 5 kph from the north-west.