Shirahama Weather in January
January in Shirahama brings low temperatures around 11°C (52°F) during the day, dropping to 6°C (43°F) at night, with quite a bit of rainfall expected, averaging around 104 mm (4.1 in) for the month.
Rainfall in Shirahama in January
Historically, the month has about 14 days of rain, averaging 104 mm (4.1 in) in total. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Shirahama in January
In January, expect low temperatures in Shirahama, with highs of 11°C (52°F) and lows of 6°C (43°F) at night. Winter occurs in January. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. Nights drop to 6°C (43°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet. During January, the city enjoys the most temperate climate of the year.
Sunshine in Shirahama in January
The area enjoys a moderate level of sunlight, with around 137 hours. It's a good balance between sunny and cloudy days.January in Shirahama has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
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 January
Min Temperature
6°C (43°F)
Max Temperature
11°C (52°F)
Chance of Rain
46%
Precipitation
104 mm (4.1 in)
Rainy days
14 days
Humidity
63% *
Sunshine
137 hours *
Percentage Sunshine
*
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Shirahama typically stay consistent throughout January, with daily highs averaging around 11°C (52°F). Nights are cold, with lows typically ranging from 3°C (37°F) to 5°C (41°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Shirahama in January
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 January
Based on weather observations in Shirahama between 1976 and 2025, these are the recorded extremes during January.
- The hottest January day on record in Shirahama reached 21°C (70°F) (January 19, 1989).
- On January 25, 2023, Shirahama saw its coldest January day with temperatures maxing out at 2°C (36°F).
- Shirahama registered its coldest January night on January 25, 2023, with temperatures dropping to -3°C (27°F).
Best Places in Japan in January
Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in January →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Shirahama in January
The weather can be unpredictable in January, 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. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Shirahama in January
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.
