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
4th Jul
22

18

0

2
Sunday
5th Jul
21

18

2

4
Monday
6th Jul
22

19

2

5
Tuesday
7th Jul
22

19

6

6
Wednesday
8th Jul
25

19

3

8

5-day weather forecast updated at 04:03 on Saturday 4th 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 Saturday 4th July 2026

Expect mostly cloudy with rain in Koya, Japan with a maximum temperature of 22°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 98% chance of some rain and little or no wind of 5 kph from the south-east.

22
°C maximum temperature
18
°C minimum temperature
mostly cloudy with rain
0
hours of sunshine
2
UV index (Low)
98
% chance of some rain
<20
mm of rainfall expected
22
°C wind chill
5
kph wind from SE

Koya weather for Sunday 5th July 2026

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 75% chance of some rain and little or no wind of 4 kph from the south.

21
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
4
UV index (Moderate)
75
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
4
kph wind from S

Koya weather for Monday 6th July 2026

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 22°C, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 78% chance of some rain and little or no wind of 6 kph from the west.

22
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
5
UV index (Moderate)
78
% chance of some rain
<20
mm of rainfall expected
22
°C wind chill
6
kph wind from W

Koya weather for Tuesday 7th July 2026

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 22°C, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 62% chance of some rain and little or no wind of 4 kph from the north-west.

22
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
6
UV index (High)
62
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
4
kph wind from NW

Koya weather for Wednesday 8th July 2026

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 25°C, maximum UV of 8 (Very High) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 58% chance of some rain and little or no wind of 4 kph from the south-east.