Nagasaki weather in December
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Nagasaki December weather at a glance
In December, Nagasaki averages 9.6°C, with typical highs of 13°C and lows of 6.5°C. The historical average is 8 wet days and 67% humidity.
Nagasaki December temperature & humidity
Nagasaki December rain & wet days
Pack a compact umbrella. Keep an indoor stop available between outdoor activities.
What to wear in Nagasaki in December
Wear long sleeves with a light jacket or cardigan that is easy to remove during the day.
- DaytimeLong sleeves and a light jacket · average high 13°C
- Morning & eveningLong sleeves with a jacket or cardigan · average low 6.5°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Nagasaki December sunrise & sunset times
2026 December · Local time (Asia/Tokyo)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-12-01 | 07:04 | 17:14 | 10h 10m |
| 2026-12-15 | 07:15 | 17:16 | 10h 1m |
| 2026-12-31 | 07:22 | 17:24 | 10h 2m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
Nagasaki travel updates
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Today’s weather and forecast
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Forecast · Windy. Monthly averages are in the Temperature section.
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Nagasaki city map
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Nagasaki travel essentials
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Best months to visit Nagasaki
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
December weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Nagasaki weather like in December?
In December, Nagasaki averages 9.6°C, with typical highs of 13°C and lows of 6.5°C. The historical average is 8 wet days and 67% humidity. Our weather-comfort rating for this month is fair.
Does it rain a lot in Nagasaki in December?
There are about 8 wet days in December. A compact umbrella is still useful.
What should I wear in Nagasaki in December?
Wear long sleeves with a light jacket or cardigan that is easy to remove during the day.
What are the best months to visit Nagasaki?
Recent weather data rates May, October, November among the more comfortable months.
Where can I check Nagasaki weather in December in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Nagasaki in December?
On 2026-12-15, calculated sunrise is 07:15 and sunset is 17:16 in local time (Asia/Tokyo). Times vary by date and terrain.
Nagasaki weather by month
More Japan destinations in December
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations