Weather in September 2025

Nagasaki weather in September 2025

The weather in Nagasaki in September is hot. The average temperatures are between 22°C and 27°C.

You can expect rain for roughly half of the month of September in Nagasaki. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.

Our weather forecast can give you a great sense of what weather to expect in Nagasaki in September 2025.

If you’re planning to visit Nagasaki in the near future, we highly recommend that you review the 14 day weather forecast for Nagasaki before you arrive.

Temperatures
Temperatures
27° / 22°
Rainy Days
Rainy Days
8
Snowy Days
Snowy Days
0
Dry Days
Dry Days
22
Rainfall
Rainfall
198
mm
10.1
Sun Hours
10.1
Hrs

Nagasaki annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January 10° / 5° 8 19 4 84 mm
Awful
February 11° / 6° 7 19 2 111 mm
Awful
March 14° / 9° 7 23 0 121 mm
Ok
April 18° / 12° 7 23 0 140 mm
Ok
May 22° / 16° 7 24 0 145 mm
Ok
June 25° / 20° 10 20 0 297 mm
Good
July 28° / 24° 12 19 0 368 mm
Good
August 30° / 25° 11 20 0 335 mm
Ok
September 27° / 22° 8 22 0 198 mm
Good
October 23° / 17° 4 27 0 104 mm
Perfect
November 17° / 13° 5 25 0 126 mm
Good
December 12° / 7° 7 22 2 109 mm
Awful
Temperatures in Nagasaki in September
Rain in Nagasaki in September

Recommended Hotels in Nagasaki

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Weather in Nagasaki in September - FAQ

What is the average temperature in Nagasaki in September?
The average temperature in Nagasaki in September is 22/27° C.
What is the chance of rain in Nagasaki in September?
On average, there are 8 rainy days in Nagasaki during September.
Weather wise, is September a good time to visit Nagasaki?
The weather in Nagasaki in September is good.
Can it snow in Nagasaki in September?
On average, there are 0 snowy days in Nagasaki in September.
Cities in Nagasaki

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