Koya weather live forecast

Today's maximum temperature in Koya is expected to be 22°C. Select a day from the live weather forecast for Koya, Japan for more weather parameters.

Saturday
6th Jun
22

13

6

8
Sunday
7th Jun
17

15

0

1
Monday
8th Jun
23

16

3

6
Tuesday
9th Jun
18

13

0

5
Wednesday
10th Jun
20

12

3

9

5-day weather forecast updated at 04:02 on Saturday 6th 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 Saturday 6th June 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 22°C, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 kph from the south-east.

22
°C maximum temperature
13
°C minimum temperature
broken clouds
6
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
22
°C wind chill
4
kph wind from SE

Koya weather for Sunday 7th June 2026

Expect cloudy with some rain in Koya, Japan with a maximum temperature of 17°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 30-40 mm of rainfall expected with 92% chance of some rain and a gentle breeze of 16 kph from the south-east.

17
°C maximum temperature
15
°C minimum temperature
cloudy with some rain
0
hours of sunshine
1
UV index (Low)
92
% chance of some rain
<40
mm of rainfall expected
17
°C wind chill
16
kph wind from SE

Koya weather for Monday 8th June 2026

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 23°C, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 55% chance of some rain and a light breeze of 7 kph from the north-west.

23
°C maximum temperature
16
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
6
UV index (High)
55
% chance of some rain
<5
mm of rainfall expected
23
°C wind chill
7
kph wind from NW

Koya weather for Tuesday 9th June 2026

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 18°C, maximum UV of 5 (Moderate) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 32% chance of some rain and a light breeze of 7 kph from the north.

18
°C maximum temperature
13
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
5
UV index (Moderate)
32
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
7
kph wind from N

Koya weather for Wednesday 10th June 2026

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 20°C, maximum UV of 9 (Very High) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 22% chance of some rain and little or no wind of 4 kph from the south-east.