Koya weather live forecast

Today's maximum temperature in Koya is expected to be -2°C. Select a day from the live weather forecast for Koya, Japan for more weather parameters.

Friday
2nd Jan
-2

-5

2

2
Saturday
3rd Jan
-1

-5

2

2
Sunday
4th Jan
2

-4

10

2
Monday
5th Jan
0

-4

4

1

5-day weather forecast updated at 04:03 on Tuesday 30th December 2025 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 Friday 2nd January 2026

Expect mostly cloudy with light snow in Koya, Japan with a maximum temperature of -2°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0-2 cm of snow expected with 51% chance of some snow and a light breeze of 10 kph from the north-west.

-2
°C maximum temperature
-5
°C minimum temperature
mostly cloudy with light snow
2
hours of sunshine
2
UV index (Low)
51
% chance of some snow
<2
cm of snow expected
-6
°C wind chill
10
kph wind from NW

Koya weather for Saturday 3rd January 2026

Expect mostly cloudy with light snow in Koya, Japan with a maximum temperature of -1°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0-2 cm of snow expected with 41% chance of some snow and a light breeze of 10 kph from the north-west.

-1
°C maximum temperature
-5
°C minimum temperature
mostly cloudy with light snow
2
hours of sunshine
2
UV index (Low)
41
% chance of some snow
<2
cm of snow expected
-5
°C wind chill
10
kph wind from NW

Koya weather for Sunday 4th January 2026

Expect clear skies with flurries of snow in Koya, Japan with a maximum temperature of 2°C, maximum UV of 2 (Low) and 10 hours of bright sunshine. There are 0-2 cm of snow expected with 25% chance of some snow and a light breeze of 7 kph from the west.

2
°C maximum temperature
-4
°C minimum temperature
clear skies with flurries of snow
10
hours of sunshine
2
UV index (Low)
25
% chance of some snow
<2
cm of snow expected
0
°C wind chill
7
kph wind from W

Koya weather for Monday 5th January 2026

Expect clear skies with flurries of snow in Koya, Japan with a maximum temperature of 0°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0-2 cm of snow expected with 52% chance of some snow and a gentle breeze of 13 kph from the north-west.