Shirahama
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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.

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
*
* Data from: Wakayama, Japan (63 KM, 39 Miles).

Shirahama Weather by Month

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

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 records 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

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 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.

  • Swimming
    5/10
  • Cycling
    5/10
  • Walking
    5/10
  • Camping
    3/10
  • Outdoor sports
    5/10

Shirahama 3-Day Forecast

More climate data for Shirahama

Popular in January

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

Bucket list

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