Koya weather live forecast

Today's maximum temperature in Koya is expected to be -4°C. Select a day from the live weather forecast for Koya, Japan for more weather parameters.

Thursday
22nd Jan
-4

-6

0

3
Friday
23rd Jan
-1

-6

2

2
Saturday
24th Jan
0

-5

3

3
Sunday
25th Jan
-2

-5

1

3
Monday
26th Jan
-1

-6

2

3

5-day weather forecast updated at 04:04 on Wednesday 21st January 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 22nd January 2026

Expect broken clouds in Koya, Japan with a maximum temperature of -4°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 10 kph from the north-west.

-4
°C maximum temperature
-6
°C minimum temperature
broken clouds
0
hours of sunshine
3
UV index (Moderate)
0
cm of snow expected
-8
°C wind chill
10
kph wind from NW

Koya weather for Friday 23rd January 2026

Expect broken clouds in Koya, Japan with a maximum temperature of -1°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 9 kph from the north-west.

-1
°C maximum temperature
-6
°C minimum temperature
broken clouds
2
hours of sunshine
2
UV index (Low)
0
cm of snow expected
-5
°C wind chill
9
kph wind from NW

Koya weather for Saturday 24th January 2026

Expect mostly cloudy with light snow in Koya, Japan with a maximum temperature of 0°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 2-5 cm of snow expected with 76% chance of some snow and a light breeze of 10 kph from the west.

0
°C maximum temperature
-5
°C minimum temperature
mostly cloudy with light snow
3
hours of sunshine
3
UV index (Moderate)
76
% chance of some snow
<5
cm of snow expected
-4
°C wind chill
10
kph wind from W

Koya weather for Sunday 25th January 2026

Expect mostly cloudy with snow in Koya, Japan with a maximum temperature of -2°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 5-10 cm of snow expected with 64% chance of some snow and a light breeze of 11 kph from the north-west.

-2
°C maximum temperature
-5
°C minimum temperature
mostly cloudy with snow
1
hour of sunshine
3
UV index (Moderate)
64
% chance of some snow
<10
cm of snow expected
-6
°C wind chill
11
kph wind from NW

Koya weather for Monday 26th January 2026

Expect mostly cloudy with light snow in Koya, Japan with a maximum temperature of -1°C, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 0-2 cm of snow expected with 2% chance of some snow and little or no wind of 6 kph from the north.