Wakayama
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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.

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

Wakayama Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Wakayama - and find the best time to visit.

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 records 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
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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.

  • Swimming
    5/10
  • Cycling
    6/10
  • Walking
    6/10
  • Camping
    4/10
  • Outdoor sports
    9/10

Wakayama 3-Day Forecast

More climate data for Wakayama

Popular in December

Where to go in December - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.