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.

Wednesday
3rd Jun
19

15

2

6
Thursday
4th Jun
20

14

4

6
Friday
5th Jun
20

13

0

6
Saturday
6th Jun
21

13

0

9
Sunday
7th Jun
20

14

0

1

5-day weather forecast updated at 04:02 on Tuesday 2nd June 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 Wednesday 3rd June 2026

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 19°C, maximum UV of 6 (High) and 2 hours of bright sunshine. There are 50 mm or more of rainfall expected with 82% chance of some rain and a gentle breeze of 17 kph from the north-west.

19
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
6
UV index (High)
82
% chance of some rain
>50
mm or more of rainfall expected
19
°C wind chill
17
kph wind from NW

Koya weather for Thursday 4th June 2026

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 20°C, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 37% chance of some rain and a light breeze of 8 kph from the north-west.

20
°C maximum temperature
14
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
6
UV index (High)
37
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
8
kph wind from NW

Koya weather for Friday 5th June 2026

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 20°C, maximum UV of 6 (High) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a light breeze of 8 kph from the south-east.

20
°C maximum temperature
13
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
6
UV index (High)
25
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
8
kph wind from SE

Koya weather for Saturday 6th June 2026

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 21°C, maximum UV of 9 (Very High) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 37% chance of some rain and little or no wind of 5 kph from the south-east.

21
°C maximum temperature
13
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
9
UV index (Very High)
37
% chance of some rain
<2
mm of rainfall expected
21
°C wind chill
5
kph wind from SE

Koya weather for Sunday 7th June 2026

Expect cloudy with some rain in Koya, Japan with a maximum temperature of 20°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 68% chance of some rain and a light breeze of 10 kph from the south-east.