See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
20°
Overcast
Feels Like: 19°
Min: 16°
Max: 24°
The next few hours will be mostly cloudy, with today reaching 24°C and dropping to 16°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
05:35
Sunrise
17:24
Sunset
Moon
Waxing Gibbous
16:40
Moonrise
04:42
Moonset
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View stargazing scoreWeather in Nagasaki today, September 25, 2026
Nagasaki starts September 25, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans.
The temperature range runs from about 16°C up to 24°C. Moisture in the air spans 81%-89%, with the highest values around 21:00. Expect gentle winds, highest near 17:00 at 1.4 km/h.
Expect the wet theme to continue later, as rain odds reach 24% near 17:00. Cloud amounts hold near 100% around 21:00. Visibility stays near 16.1 km. Sunrise is at 05:35 and sunset at 17:24, giving 11 hours 48 minutes of sunlight today.
The practical takeaway for Nagasaki on September 25, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 24°C.
Frequently asked questions about weather in Nagasaki
How warm does it get in Nagasaki?
The warmest month in Nagasaki is August, with average high temperatures of 28°C. The average temperature during this period is around 24°C.
How cold does it get in Nagasaki?
The coldest month in Nagasaki is January, with average low temperatures of -4°C. The average temperature during this period is around -1°C.
What is the wettest time of year in Nagasaki?
The wettest month in Nagasaki is July, with an average of 180mm of precipitation.
What is the driest time of year in Nagasaki?
The driest month in Nagasaki is November, with an average of 92mm of precipitation.
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