Koya weather live forecast

Today's maximum temperature in Koya is expected to be 11°C. Select a day from the live weather forecast for Koya, Japan for more weather parameters.

Monday
23rd Mar
11

3

4

5
Tuesday
24th Mar
12

1

7

7
Wednesday
25th Mar
9

5

1

3
Thursday
26th Mar
8

5

2

4
Friday
27th Mar
13

2

2

6

5-day weather forecast updated at 04:03 on Sunday 22nd March 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 Monday 23rd March 2026

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 11°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 35% chance of some rain and a light breeze of 7 kph from the north.

11
°C maximum temperature
3
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
5
UV index (Moderate)
35
% chance of some rain
<5
mm of rainfall expected
11
°C wind chill
7
kph wind from N

Koya weather for Tuesday 24th March 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 12°C, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north.

12
°C maximum temperature
1
°C minimum temperature
broken clouds
7
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
12
°C wind chill
5
kph wind from N

Koya weather for Wednesday 25th March 2026

Expect mostly cloudy with rain in Koya, Japan with a maximum temperature of 9°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 98% chance of some rain and little or no wind of 6 kph from the south-east.

9
°C maximum temperature
5
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
3
UV index (Moderate)
98
% chance of some rain
<20
mm of rainfall expected
8
°C wind chill
6
kph wind from SE

Koya weather for Thursday 26th March 2026

Expect mostly cloudy with rain in Koya, Japan with a maximum temperature of 8°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 72% chance of some rain and little or no wind of 6 kph from the north.

8
°C maximum temperature
5
°C minimum temperature
mostly cloudy with rain
2
hours of sunshine
4
UV index (Moderate)
72
% chance of some rain
<10
mm of rainfall expected
7
°C wind chill
6
kph wind from N

Koya weather for Friday 27th March 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 13°C, maximum UV of 6 (High) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 kph from the north-east.