Koya weather live forecast

Today's maximum temperature in Koya is expected to be 12°C. Select a day from the live weather forecast for Koya, Japan for more weather parameters.

Wednesday
4th Nov
12

7

3

2
Thursday
5th Nov
17

12

2

4
Friday
6th Nov
15

8

4

4
Saturday
7th Nov
9

4

4

2
Sunday
8th Nov
11

4

5

4

5-day weather forecast updated at 04:02 on Wednesday 4th November 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 4th November 2026

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 12°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 66% chance of some rain and little or no wind of 4 kph from the north-east.

12
°C maximum temperature
7
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
2
UV index (Low)
66
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
4
kph wind from NE

Koya weather for Thursday 5th November 2026

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 17°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 69% chance of some rain and little or no wind of 6 kph from the south.

17
°C maximum temperature
12
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
4
UV index (Moderate)
69
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
6
kph wind from S

Koya weather for Friday 6th November 2026

Expect sunshine and showers in Koya, Japan with a maximum temperature of 15°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 23% chance of some rain and a light breeze of 12 kph from the north-west.

15
°C maximum temperature
8
°C minimum temperature
sunshine and showers
4
hours of sunshine
4
UV index (Moderate)
23
% chance of some rain
<5
mm of rainfall expected
15
°C wind chill
12
kph wind from NW

Koya weather for Saturday 7th November 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 9°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north-west.

9
°C maximum temperature
4
°C minimum temperature
broken clouds
4
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
6
°C wind chill
14
kph wind from NW

Koya weather for Sunday 8th November 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 11°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the north.