Onna Weather in December

December in Onna brings high temperatures, with highs of 22°C (72°F) and nights dropping to 19°C (66°F). Rainfall is on the higher side this month, averaging around 118 mm (4.6 in), so keep a rain jacket handy.

Rainfall in Onna in December

Typically, you can expect about 20 days of rain this month, with 118 mm (4.6 in) on average. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Onna in December

Temperatures in Onna in December top out at 22°C (72°F) and drop to 19°C (66°F) overnight. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 19°C (66°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Onna in December

The month brings about 116 hours of sunlight, offering a comfortable mix of sun and overcast.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, October, November and December typically offer the best weather for Onna.

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• January
• February
• March
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• May
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• September
• October
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• December

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

Onna Temperature in December

Min Temperature 19°C (66°F)  

Max Temperature 22°C (72°F)  

Chance of Rain 66%  

Precipitation 118 mm (4.6 in)  

Rainy days 20 days  

Humidity 66% *  

Sunshine 116 hours *  

Percentage Sunshine *  

* Data from: Naha, Japan (36 KM, 22 Miles).

What to Wear in Onna in December

For Onna in December, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool 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 Onna in December

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

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

6/10

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 Onna's climate page.

More climate data for Onna

Temperature Rainfall Sunshine Humidity

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