Wakayama Weather in December
Wakayama in December averages 13°C (55°F) during the day and 7°C (45°F) at night. This is part of the winter season, and quite a bit of rainfall is expected this month.
Rainfall in Wakayama in December
Rain is expected on roughly 14 days, totalling around 97 mm (3.8 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Wakayama in December
Daytime highs in Wakayama in December reach 13°C (55°F), with nights around 7°C (45°F). December is known for being in the winter season. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows around 7°C (45°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Wakayama in December
The area enjoys a moderate level of sunlight, with around 134 hours. It's a good balance between sunny and cloudy days.Should you favor a climate that's both dry and comfortably warm, May typically offers the most agreeable 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 Wakayama's climate page.
Wakayama Temperature in December
Min Temperature
7°C (45°F)
Max Temperature
13°C (55°F)
Chance of Rain
47%
Precipitation
97 mm (3.8 in)
Rainy days
14 days
Humidity
66%
Sunshine
134 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Wakayama typically drop from around 14°C (57°F) at the start of December to approximately 10°C (50°F) by the end. Nights are cold, with lows typically ranging from 3°C (37°F) to 7°C (45°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 Wakayama in December
Browse day-by-day weather records for Wakayama spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Wakayama historical weather extremes in December
The extremes listed below come from historical weather data collected in Wakayama from 1976 through 2025.
- The hottest December day on record in Wakayama reached 24°C (75°F) (December 4, 2018).
- The coldest December day was on December 27, 1976, with a maximum of 2°C (36°F).
- Nighttime temperatures dropped to -3°C (27°F) on December 27, 1983, marking the coldest December night on record.
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 Wakayama in December
Pack for changing conditions in Wakayama in December. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Prepare for significant rainfall with proper waterproof clothing and shoes. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Wakayama 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 Wakayama's climate page.
Temperature Rainfall Sunshine Humidity
See the full Wakayama climate overview or explore weather in Japan.
