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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Atami's climate page.
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% *
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 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
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tolerable
unpleasant
poor
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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Atami's climate page.
See the full Atami climate overview or explore weather in Japan.
