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.

Tuesday
23rd Dec
11

-2

5

2
Wednesday
24th Dec
11

7

1

1
Thursday
25th Dec
9

0

0

1
Friday
26th Dec
-1

-5

1

1
Saturday
27th Dec
0

-5

2

1

5-day weather forecast updated at 04:03 on Tuesday 23rd 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 Tuesday 23rd December 2025

Expect sunshine and showers in Koya, Japan with a maximum temperature of 11°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 88% chance of some rain and little or no wind of 6 kph from the south-east.

11
°C maximum temperature
-2
°C minimum temperature
sunshine and showers
5
hours of sunshine
2
UV index (Low)
88
% chance of some rain
<2
mm of rainfall expected
11
°C wind chill
6
kph wind from SE

Koya weather for Wednesday 24th December 2025

Expect mostly cloudy with rain in Koya, Japan with a maximum temperature of 11°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 81% chance of some rain and little or no wind of 5 kph from the south.

11
°C maximum temperature
7
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
1
UV index (Low)
81
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
5
kph wind from S

Koya weather for Thursday 25th December 2025

Expect mostly cloudy with rain in Koya, Japan with a maximum temperature of 9°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 67% chance of some rain and a light breeze of 11 kph from the north-west.

9
°C maximum temperature
0
°C minimum temperature
mostly cloudy with rain
0
hours of sunshine
1
UV index (Low)
67
% chance of some rain
<10
mm of rainfall expected
8
°C wind chill
11
kph wind from NW

Koya weather for Friday 26th December 2025

Expect mostly cloudy with light snow in Koya, Japan with a maximum temperature of -1°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 2-5 cm of snow expected with 66% chance of some snow and a gentle breeze of 13 kph from the north-west.

-1
°C maximum temperature
-5
°C minimum temperature
mostly cloudy with light snow
1
hour of sunshine
1
UV index (Low)
66
% chance of some snow
<5
cm of snow expected
-5
°C wind chill
13
kph wind from NW

Koya weather for Saturday 27th December 2025

Expect broken clouds in Koya, Japan with a maximum temperature of 0°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 7 kph from the north-west.