Atami
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Atami Weather in December

December in Atami brings moderate temperatures, with daytime highs of 12°C (54°F) and nights around 6°C (43°F). Rainfall is at its lowest this month, making it one of the more reliable months to be outdoors.

Rainfall in Atami in December

Clear skies and little rain are the norm this month, even if it's not the warmest time of year. Still a good time to spend time outdoors. You can expect rain on around 9 days based on historical patterns, with 90 mm (3.5 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Atami in December

If you're visiting Atami in December, expect highs of 12°C (54°F) and overnight lows around 6°C (43°F). Winter occurs in December. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights fall to 6°C (43°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

If you prefer dry days with pleasant temperatures, May typically offers 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.

Atami Temperature in December

Min Temperature
6°C (43°F)
Max Temperature
12°C (54°F)
Chance of Rain
29%
Precipitation
90 mm (3.5 in)
Rainy days
9 days
Humidity
47% *
* Data from: Mount Fuji, Japan (42 KM, 26 Miles).

Atami Weather by Month

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

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Atami typically drop from around 15°C (59°F) at the start of December to approximately 11°C (52°F) by the end. Nights are cold, with lows typically ranging from 1°C (34°F) to 6°C (43°F).

Average temperatures in December

Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in December

Historical weather records for Atami in December

Browse day-by-day weather records for Atami spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Atami historical weather extremes in December

According to our 49 years of weather records for Atami, the following extremes were recorded between 1976 and 2025.

  • Atami recorded its highest December temperature of 24°C (75°F) on December 5, 2004.
  • On December 9, 2002, Atami saw its coldest December day with temperatures maxing out at 5°C (41°F).

Best Places in Japan in December

Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in December →

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 Atami in December

Pack for changing conditions in Atami in December. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Prepare for significant rainfall with proper waterproof clothing and shoes.

What To Do in Atami in December

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

  • Cycling
    6/10
  • Walking
    6/10
  • Barbeque
    4/10
  • Camping
    4/10
  • Outdoor sports
    6/10

Atami 3-Day Forecast

More climate data for Atami

Popular in December

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

Bucket list

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