Hakone Weather in December
December in Hakone typically sees daytime highs of 12°C (54°F) and nighttime lows of 5°C (41°F). With the least rainfall of the year, it's a reliably dry month. It falls within the winter season.
Rainfall in Hakone in December
The month is known for having the least rain of the year. The dry conditions are worth making the most of, even if you'll want a warm layer. The climate data from previous years indicates about 8 days of rain, averaging 94 mm (3.7 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Hakone in December
December in Hakone brings low temperatures, with highs of 12°C (54°F) and nights around 5°C (41°F). Winter occurs in December. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. With lows around 5°C (41°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.If you prefer enjoying temperate temperatures and rain-free days, May and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Hakone's climate page.
Hakone Temperature in December
Min Temperature
5°C (41°F)
Max Temperature
12°C (54°F)
Chance of Rain
27%
Precipitation
94 mm (3.7 in)
Rainy days
8 days
Humidity
47% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Hakone typically drop from around 14°C (57°F) at the start of December to approximately 11°C (52°F) by the end. Nights are cold, with lows typically ranging from 0°C (32°F) to 4°C (39°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Hakone in December
Browse day-by-day weather records for Hakone spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Hakone historical weather extremes in December
Based on weather observations in Hakone between 1976 and 2025, these are the recorded extremes during December.
- The hottest December day on record in Hakone reached 23°C (73°F) (December 5, 2004).
- On December 9, 2002, Hakone saw its coldest December day with temperatures maxing out at 4°C (39°F).
Best Places in Japan in December
Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in December →
perfect weather
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tolerable
unpleasant
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What to Wear in Hakone in December
The weather can be unpredictable in December, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho.What To Do in Hakone in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Hakone's climate page.
See the full Hakone climate overview or explore weather in Japan.
