Koya weather live forecast

Today's maximum temperature in Koya is expected to be 0°C. Select a day from the live weather forecast for Koya, Japan for more weather parameters.

Thursday
8th Jan
0

-4

3

2
Friday
9th Jan
2

-4

8

2
Saturday
10th Jan
6

-4

2

2
Sunday
11th Jan
4

-6

3

2
Monday
12th Jan
0

-5

7

3

5-day weather forecast updated at 04:03 on Wednesday 7th January 2026 GMT

More about Koya

Koya by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Japan

Fred Olsen: Top cruise offers for 2026/2027

Sale

Explore latest offers on Fred Olsen Cruises in 2026/2027
Find last minute deals or early bird discounts
Filter offers by price, destination, ship & departure point

Go to Fred Olsen deal >>

View all Fred Olsen offers

Cruise deal finder

Destination

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 8th January 2026

Expect mostly cloudy with light snow in Koya, Japan with a maximum temperature of 0°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0-2 cm of snow expected with 46% chance of some snow and a light breeze of 11 kph from the north-west.

0
°C maximum temperature
-4
°C minimum temperature
mostly cloudy with light snow
3
hours of sunshine
2
UV index (Low)
46
% chance of some snow
<2
cm of snow expected
-3
°C wind chill
11
kph wind from NW

Koya weather for Friday 9th January 2026

Expect scattered clouds in Koya, Japan with a maximum temperature of 2°C, maximum UV of 2 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the north-west.

2
°C maximum temperature
-4
°C minimum temperature
scattered clouds
8
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
°C wind chill
7
kph wind from NW

Koya weather for Saturday 10th January 2026

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 6°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 41% chance of some rain and a light breeze of 9 kph from the south.

6
°C maximum temperature
-4
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
2
UV index (Low)
41
% chance of some rain
<2
mm of rainfall expected
4
°C wind chill
9
kph wind from S

Koya weather for Sunday 11th January 2026

Expect cloudy with sleet or snow in Koya, Japan with a maximum temperature of 4°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 5-10 mm of sleet/snow expected with 71% chance of some sleet or snow and a gentle breeze of 13 kph from the west.

4
°C maximum temperature
-6
°C minimum temperature
cloudy with sleet or snow
3
hours of sunshine
2
UV index (Low)
71
% chance of some sleet or snow
<10
mm of sleet/snow expected
1
°C wind chill
13
kph wind from W

Koya weather for Monday 12th January 2026

Expect scattered clouds in Koya, Japan with a maximum temperature of 0°C, maximum UV of 3 (Moderate) and 7 hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 10 kph from the north-west.