Nagasaki weather live forecast

Today's maximum temperature in Nagasaki is expected to be 33°C. Select a day from the live weather forecast for Nagasaki, Japan for more weather parameters.

Wednesday
2nd Sep
33

26

9

9
Thursday
3rd Sep
31

27

0

5
Friday
4th Sep
29

26

4

2
Saturday
5th Sep
30

26

7

2
Sunday
6th Sep
30

26

6

7

5-day weather forecast updated at 04:01 on Wednesday 2nd September 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 Wednesday 2nd September 2026

Expect isolated thunderstorms in Nagasaki, Japan with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 9 hours of bright sunshine. There are 5-10 mm of rainfall expected with 25% chance of some rain and a light breeze of 7 kph from the north-east.

33
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
9
UV index (Very High)
25
% chance of some rain
<10
mm of rainfall expected
H
high heat & humidity
7
kph wind from NE

Nagasaki weather for Thursday 3rd September 2026

Expect isolated thunderstorms in Nagasaki, Japan with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 56% chance of some rain and a gentle breeze of 13 kph from the north-east.

31
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
5
UV index (Moderate)
56
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
13
kph wind from NE

Nagasaki weather for Friday 4th September 2026

Expect mostly cloudy with rain in Nagasaki, Japan with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 20-30 mm of rainfall expected with 55% chance of some rain and a gentle breeze of 19 kph from the north-east.

29
°C maximum temperature
26
°C minimum temperature
mostly cloudy with rain
4
hours of sunshine
2
UV index (Low)
55
% chance of some rain
<30
mm of rainfall expected
M
moderate heat & humidity
19
kph wind from NE

Nagasaki weather for Saturday 5th September 2026

Expect sunshine and showers in Nagasaki, Japan with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 24% chance of some rain and a moderate breeze of 22 kph from the north-east.

30
°C maximum temperature
26
°C minimum temperature
sunshine and showers
7
hours of sunshine
2
UV index (Low)
24
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
22
kph wind from NE

Nagasaki weather for Sunday 6th September 2026

Expect isolated thunderstorms in Nagasaki, Japan with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 46% chance of some rain and a gentle breeze of 18 kph from the north-east.