Nagasaki weather live forecast

Today's maximum temperature in Nagasaki is expected to be 20°C. Select a day from the live weather forecast for Nagasaki, Japan for more weather parameters.

Saturday
18th Apr
20

18

0

2
Sunday
19th Apr
18

17

0

2
Monday
20th Apr
21

17

5

8
Tuesday
21st Apr
21

14

9

8
Wednesday
22nd Apr
22

12

0

8

5-day weather forecast updated at 04:01 on Saturday 18th April 2026 GMT

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The 5-day weather forecast for Japan (Nagasaki) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Nagasaki weather forecast by day

Below are the detailed weather forecasts for Nagasaki for the next 5 days.

Nagasaki weather for Saturday 18th April 2026

Expect cloudy with some rain in Nagasaki, Japan with a maximum temperature of 20°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 78% chance of some rain and a light breeze of 9 kph from the east.

20
°C maximum temperature
18
°C minimum temperature
cloudy with some rain
0
hours of sunshine
2
UV index (Low)
78
% chance of some rain
<10
mm of rainfall expected
20
°C wind chill
9
kph wind from E

Nagasaki weather for Sunday 19th April 2026

Expect cloudy with some rain in Nagasaki, Japan with a maximum temperature of 18°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 80% chance of some rain and little or no wind of 6 kph from the east.

18
°C maximum temperature
17
°C minimum temperature
cloudy with some rain
0
hours of sunshine
2
UV index (Low)
80
% chance of some rain
<30
mm of rainfall expected
0
no heat & humidity
6
kph wind from E

Nagasaki weather for Monday 20th April 2026

Expect broken clouds in Nagasaki, Japan with a maximum temperature of 21°C, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the west.

21
°C maximum temperature
17
°C minimum temperature
broken clouds
5
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
8
kph wind from W

Nagasaki weather for Tuesday 21st April 2026

Expect broken clouds in Nagasaki, Japan with a maximum temperature of 21°C, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the north-east.

21
°C maximum temperature
14
°C minimum temperature
broken clouds
9
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
13
kph wind from NE

Nagasaki weather for Wednesday 22nd April 2026

Expect mostly cloudy with light rain in Nagasaki, Japan with a maximum temperature of 22°C, maximum UV of 8 (Very High) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 54% chance of some rain and a light breeze of 7 kph from the south-east.