Unzen Weather in December

December in Unzen typically sees daytime highs of 14°C (57°F) and nighttime lows of 8°C (46°F). Rainfall is also possible this month, so it's worth packing an umbrella. It falls within the winter season.

Rainfall in Unzen in December

Based on our climate data of the past 30 years, about 18 days of rain are anticipated, with 88 mm (3.5 in) on average. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.

Temperature in Unzen in December

Daytime temperatures in Unzen reach 14°C (57°F) in December, dropping to 8°C (46°F) at night. December is known for being in the winter season. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With overnight lows of 8°C (46°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Unzen in December

The city usually sees around 114 hours of sunlight, indicating a moderately sunny period.

For Unzen itself, April and October generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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

Unzen Temperature in December

Min Temperature 8°C (46°F)  

Max Temperature 14°C (57°F)  

Chance of Rain 60%  

Precipitation 88 mm (3.5 in)  

Rainy days 18 days  

Humidity 67% *  

Sunshine 114 hours *  

Percentage Sunshine 34% *  

* Data from: Nagasaki, Japan (32 KM, 19 Miles).

What to Wear in Unzen in December

The weather can be unpredictable in December, 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Unzen in December

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

Swimming

5/10

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

9/10

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 Unzen's climate page.

More climate data for Unzen

Temperature Rainfall Sunshine Humidity

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