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.

Monday
1st Jun
24

14

9

9
Tuesday
2nd Jun
18

16

0

2
Wednesday
3rd Jun
19

14

1

8
Thursday
4th Jun
21

14

4

7
Friday
5th Jun
23

15

6

9

5-day weather forecast updated at 04:02 on Sunday 31st May 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 1st June 2026

Expect sunshine and showers in Koya, Japan with a maximum temperature of 24°C, maximum UV of 9 (Very High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 64% chance of some rain and a light breeze of 7 kph from the south-east.

24
°C maximum temperature
14
°C minimum temperature
sunshine and showers
9
hours of sunshine
9
UV index (Very High)
64
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
7
kph wind from SE

Koya weather for Tuesday 2nd June 2026

Expect cloudy with some rain in Koya, Japan with a maximum temperature of 18°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 50 mm or more of rainfall expected with 100% chance of some rain and a gentle breeze of 13 kph from the south-east.

18
°C maximum temperature
16
°C minimum temperature
cloudy with some rain
0
hours of sunshine
2
UV index (Low)
100
% chance of some rain
>50
mm or more of rainfall expected
0
no heat & humidity
13
kph wind from SE

Koya weather for Wednesday 3rd June 2026

Expect mostly cloudy with rain in Koya, Japan with a maximum temperature of 19°C, maximum UV of 8 (Very High) and 1 hour of bright sunshine. There are 50 mm or more of rainfall expected with 95% chance of some rain and a gentle breeze of 18 kph from the north-west.

19
°C maximum temperature
14
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
8
UV index (Very High)
95
% chance of some rain
>50
mm or more of rainfall expected
19
°C wind chill
18
kph wind from NW

Koya weather for Thursday 4th June 2026

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 21°C, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 38% chance of some rain and a light breeze of 7 kph from the north-west.

21
°C maximum temperature
14
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
7
UV index (High)
38
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
7
kph wind from NW

Koya weather for Friday 5th June 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 23°C, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the east.