Shirahama Weather in December
In Shirahama, December brings moderate daytime temperatures around 14°C (57°F), with nights cooling to 8°C (46°F). It is the driest month of the year, with minimal rainfall.
Rainfall in Shirahama in December
With the lowest rainfall figures of the year, conditions are ideal for exploring the outdoors, even if the temperatures require a jacket. On average, there are about 12 days with rain during this month, averaging 104 mm (4.1 in). When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Shirahama in December
In December, Shirahama gets moderate temperatures, with highs of 14°C (57°F). Nights cool to around 8°C (46°F). Winter occurs in December. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With lows around 8°C (46°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Shirahama in December
With about 134 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.Our weather planner can help you find worldwide destinations with pleasant weather during this period. April, May and November typically offer the best weather for Shirahama.
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 Shirahama's climate page.
Shirahama Temperature in December
Min Temperature
8°C (46°F)
Max Temperature
14°C (57°F)
Chance of Rain
41%
Precipitation
104 mm (4.1 in)
Rainy days
12 days
Humidity
66% *
Sunshine
134 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Shirahama typically drop from around 15°C (59°F) at the start of December to approximately 11°C (52°F) by the end. Nights are cold, with lows typically ranging from 5°C (41°F) to 9°C (48°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 Shirahama in December
Browse day-by-day weather records for Shirahama spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Shirahama historical weather extremes in December
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Shirahama.
- On December 4, 2018, temperatures climbed to 23°C (73°F), marking the warmest December day on record.
- Shirahama experienced its chilliest December day on December 27, 1976, reaching only 1°C (34°F).
- The coldest night in December in Shirahama was on December 27, 1976, with a minimum of -2°C (28°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
pleasant
tolerable
unpleasant
poor
What to Wear in Shirahama in December
The weather can swing between comfortable and chilly in December, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Shirahama 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 Shirahama's climate page.
Temperature Rainfall Sunshine Humidity
See the full Shirahama climate overview or explore weather in Japan.
