December · Japan
Best time to visit Nagasaki in December Weather, crowds & prices
Weather in Nagasaki in December
Average temperature 8°C, 47 mm of rain, about 0 days with 6+ hours of sunshine and 78% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
6.3/10
Ranked #2 of 12 months
- Avg temp
- 8°C
- Rainfall
- 47 mm
- Humidity
- 78%
- Days with 6h+ sun
- 0
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
December in Nagasaki scores 6.3/10 for sightseeing and cultural travel - one of the top 12-month picks (#2). Expect around 8°C, 47 mm of rain, and roughly 0 days with 6+ hours of sunshine this month.
Nagasaki's harbour hills hold a unique history of trade, Christianity and the atomic bombing.
December in Nagasaki: mixed conditions, plan around the weather
Expect 8°C (46°F) in December. A good month for city streets, viewpoints and long meals; leave swimming for another season.
Budget for roughly 47 mm of rain this month — a flexible day or two helps — with almost no days with 6+ hours of sunshine and 9.9 hours of daylight to work around it.
That is 6.3/10 on the same scale — 2nd of 12 months, versus 6.9/10 for the best month here.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
Budget for peak pricing, and crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Nagasaki in December?
- In December, Nagasaki averages 8°C, 47 mm of rain, and about 0 days with 6+ hours of sunshine. Its climate-comfort score is 6.3/10.
- Is December a good time to visit Nagasaki?
- December earns a 6.3/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Nagasaki in December?
- Expect about 47 mm of rain in December. Average humidity is 78% and there are about 0 days with 6+ hours of sunshine.
Curated in Nagasaki
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Nagasaki, Japan. Live activities and tours from GetYourGuide, matched to this destination.