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.

Saturday
30th May
24

11

10

10
Sunday
31st May
26

14

4

10
Monday
1st Jun
25

13

11

9
Tuesday
2nd Jun
18

15

0

1
Wednesday
3rd Jun
19

16

1

1

5-day weather forecast updated at 04:02 on Friday 29th 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 Saturday 30th May 2026

Expect scattered clouds in Koya, Japan with a maximum temperature of 24°C, maximum UV of 10 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north-west.

24
°C maximum temperature
11
°C minimum temperature
scattered clouds
10
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
5
kph wind from NW

Koya weather for Sunday 31st May 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 26°C, maximum UV of 10 (Very High) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 kph from the south-east.

26
°C maximum temperature
14
°C minimum temperature
broken clouds
4
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
26
°C wind chill
4
kph wind from SE

Koya weather for Monday 1st June 2026

Expect sunshine and showers in Koya, Japan with a maximum temperature of 25°C, maximum UV of 9 (Very High) and 11 hours of bright sunshine. There are 2-5 mm of rainfall expected with 42% chance of some rain and a light breeze of 8 kph from the south-east.

25
°C maximum temperature
13
°C minimum temperature
sunshine and showers
11
hours of sunshine
9
UV index (Very High)
42
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
8
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 1 (Low) and no hours of bright sunshine. There are 40-50 mm of rainfall expected with 97% chance of some rain and a light breeze of 11 kph from the south-east.

18
°C maximum temperature
15
°C minimum temperature
cloudy with some rain
0
hours of sunshine
1
UV index (Low)
97
% chance of some rain
<50
mm of rainfall expected
0
no heat & humidity
11
kph wind from SE

Koya weather for Wednesday 3rd June 2026

Expect cloudy with some rain in Koya, Japan with a maximum temperature of 19°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 50 mm or more of rainfall expected with 96% chance of some rain and a gentle breeze of 18 kph from the south-east.