Zao Onsen Weather in December

Zao Onsen in December averages 6°C (43°F) during the day and -2°C (28°F) at night. This is part of the winter season, and quite a bit of snow/rainfall is expected this month.

Rainfall in Zao Onsen in December

Climate statistics over the past 30 years suggest around 27 days of snow/rain, with 104 mm (4.1 in) average for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Zao Onsen in December

Daytime highs in Zao Onsen in December reach 6°C (43°F), with nights around -2°C (28°F). December is known for being in the winter season. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. With overnight lows of -2°C (28°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold.

Sunshine in Zao Onsen in December

The area enjoys a moderate level of sunlight, with around 135 hours. It's a good balance between sunny and cloudy days.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Zao Onsen. Our weather planner can help you explore destinations with more pleasant weather conditions.

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

Zao Onsen Temperature in December

Min Temperature -2°C (28°F)  

Max Temperature 6°C (43°F)  

Chance of Rain 89%  

Precipitation 104 mm (4.1 in)  

Rainy days 27 days  

Humidity 66% *  

Sunshine 135 hours *  

Percentage Sunshine 48% *  

* Data from: Sendai, Japan (45 KM, 28 Miles).

What to Wear in Zao Onsen in December

We recommend to layer up for chilly conditions in Zao Onsen in December. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Zao Onsen in December

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 Zao Onsen's climate page.

More climate data for Zao Onsen

Temperature Rainfall Sunshine Humidity

See the full Zao Onsen climate overview or explore weather in Japan.