Koshu Weather in January

January in Koshu brings low temperatures, with highs of 4°C (39°F) and nights dropping to -6°C (21°F). Rainfall is on the higher side this month, averaging around 74 mm (2.9 in), so keep a rain jacket handy.

Rainfall in Koshu in January

Typically around 12 days of snow/rainfall are expected, averaging 74 mm (2.9 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Koshu in January

January in Koshu brings low temperatures, with highs of 4°C (39°F) and nights around -6°C (21°F). January is part of winter. Expect a distinctly cold feel throughout the day, not just overnight. With overnight lows of -6°C (21°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold. This is usually the coldest month of the year, so be sure to prepare with plenty of winter gear.

Sunshine in Koshu in January

The area enjoys a moderate level of sunlight, with around 170 hours. It's a good balance between sunny and cloudy days.

January in Koshu can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

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Check the conditions for any month of the year.

• January
• February
• March
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• May
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• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Japan, check out our Koshu's climate page.

Koshu Temperature in January

Min Temperature -6°C (21°F)  

Max Temperature 4°C (39°F)  

Chance of Rain 39%  

Precipitation 74 mm (2.9 in)  

Rainy days 12 days  

Humidity 64% *  

Sunshine 170 hours *  

Percentage Sunshine *  

* Data from: Yamanashi, Japan (4 KM, 2 Miles).

What to Wear in Koshu in January

Dress warmly and in layers for your trip to Koshu in January. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Wet weather is likely, so pack waterproof gear for multiple rainy days. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Koshu in January

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

3/10

Walking

3/10

Camping

1/10

Outdoor sports

3/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Japan, check out our Koshu's climate page.

More climate data for Koshu

Temperature Rainfall Sunshine Humidity

See the full Koshu climate overview or explore weather in Japan.