Koya weather live forecast

Today's maximum temperature in Koya is expected to be 14°C. Select a day from the live weather forecast for Koya, Japan for more weather parameters.

Thursday
29th Oct
14

3

6

5
Friday
30th Oct
15

10

0

4
Saturday
31st Oct
14

8

4

4
Sunday
1st Nov
16

6

8

4
Monday
2nd Nov
17

10

1

1

5-day weather forecast updated at 04:02 on Wednesday 28th October 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 Thursday 29th October 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 14°C, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the south.

14
°C maximum temperature
3
°C minimum temperature
broken clouds
6
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
5
kph wind from S

Koya weather for Friday 30th October 2026

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 15°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 96% chance of some rain and little or no wind of 5 kph from the south.

15
°C maximum temperature
10
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
4
UV index (Moderate)
96
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
5
kph wind from S

Koya weather for Saturday 31st October 2026

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 24% chance of some rain and a gentle breeze of 14 kph from the north-west.

14
°C maximum temperature
8
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
4
UV index (Moderate)
24
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
14
kph wind from NW

Koya weather for Sunday 1st November 2026

Expect scattered clouds in Koya, Japan with a maximum temperature of 16°C, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north.

16
°C maximum temperature
6
°C minimum temperature
scattered clouds
8
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
16
°C wind chill
5
kph wind from N

Koya weather for Monday 2nd November 2026

Expect mostly cloudy with rain in Koya, Japan with a maximum temperature of 17°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 94% chance of some rain and a light breeze of 10 kph from the south.