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.

Thursday
23rd Apr
11

9

0

1
Friday
24th Apr
14

8

3

6
Saturday
25th Apr
15

6

2

6
Sunday
26th Apr
14

7

0

3
Monday
27th Apr
17

8

3

6

5-day weather forecast updated at 04:02 on Thursday 23rd April 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 23rd April 2026

Expect cloudy with some rain in Koya, Japan with a maximum temperature of 11°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 91% chance of some rain and a light breeze of 7 kph from the south-east.

11
°C maximum temperature
9
°C minimum temperature
cloudy with some rain
0
hours of sunshine
1
UV index (Low)
91
% chance of some rain
<30
mm of rainfall expected
0
no heat & humidity
7
kph wind from SE

Koya weather for Friday 24th April 2026

Expect mostly cloudy with light rain in Koya, Japan with a maximum temperature of 14°C, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 27% chance of some rain and little or no wind of 5 kph from the north.

14
°C maximum temperature
8
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
6
UV index (High)
27
% chance of some rain
<2
mm of rainfall expected
14
°C wind chill
5
kph wind from N

Koya weather for Saturday 25th April 2026

Expect broken clouds in Koya, Japan with a maximum temperature of 15°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 6 kph from the south-east.

15
°C maximum temperature
6
°C minimum temperature
broken clouds
2
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
6
kph wind from SE

Koya weather for Sunday 26th April 2026

Expect isolated thunderstorms in Koya, Japan with a maximum temperature of 14°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 79% chance of some rain and a light breeze of 8 kph from the south-east.

14
°C maximum temperature
7
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
3
UV index (Moderate)
79
% chance of some rain
<20
mm of rainfall expected
14
°C wind chill
8
kph wind from SE

Koya weather for Monday 27th April 2026

Expect mostly cloudy with rain in Koya, Japan with a maximum temperature of 17°C, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 43% chance of some rain and a light breeze of 7 kph from the north-west.