Kōchi Weather in December
Kōchi in December sees low temperatures, with highs around 5°C (41°F) and overnight lows of -4°C (25°F). Snow/rainfall is fairly high at around 126 mm (5 in) on average, so pack waterproofs just in case.
Rainfall in Kōchi in December
Looking at the last 30 years, the data shows about 19 days with snow/rain, averaging 126 mm (5 in) for the month. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.
Temperature in Kōchi in December
December in Kōchi brings typical temperatures with highs around 5°C (41°F) and lows of -4°C (25°F). During December, the winter season is in full swing. Time outdoors is usually more comfortable with proper winter clothing and protection from wind. Nights are well below freezing at -4°C (25°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation. Known for its cold temperatures, this month requires warm clothing. Ensure you dress appropriately to stay comfortable.
Sunshine in Kōchi in December
The month experiences a moderate amount of sunlight, with 186 hours of sunshine. This provides a nice balance between sunshine and clouds.If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Kōchi. Our weather planner can help you explore destinations with more pleasant weather conditions.
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 Kōchi's climate page.
Kōchi Temperature in December
Min Temperature
-4°C (25°F)
Max Temperature
5°C (41°F)
Chance of Rain
63%
Precipitation
126 mm (5 in)
Rainy days
19 days
Humidity
63%
Sunshine
186 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Kōchi typically drop from around 10°C (50°F) at the start of December to approximately 5°C (41°F) by the end. Nights are very cold, with lows typically ranging from -2°C (28°F) to 2°C (36°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 Kōchi in December
Browse day-by-day weather records for Kōchi spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kōchi historical weather extremes in December
Our historical data for Kōchi spans 1976 to 2025, revealing these weather extremes.
- Kōchi recorded its highest December temperature of 23°C (73°F) on December 1, 1990.
- The lowest daytime temperature in December was -7°C (19°F), recorded on December 18, 2005.
- Kōchi registered its coldest December night on December 23, 2025, with temperatures dropping to -14°C (7°F).
- The wettest day in December Kōchi was on December 27, 2006 with 66 mm (2.6 in) of precipitation.
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 →
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What to Wear in Kōchi in December
Dress warmly and in layers for your trip to Kōchi in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Kōchi 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 Kōchi's climate page.
Temperature Rainfall Sunshine Humidity
See the full Kōchi climate overview or explore weather in Japan.
