Osaka weather in December 2025

Expect daytime maximum temperatures of 12°C in Osaka in December based on long-term weather averages. There are 5 hours of sunshine per day on average with 14 days with some rainfall and typically 42 mm of rainfall in the month.

  • 12°C maximum daytime temperature in December in Osaka12
    12°C max day temperature
  • 5 hours of sunshine per day
  • 14 days with some rainfall in December in Osaka14
    14 days with some rainfall
  • 4°C minimum night-time temperature in December in Osaka4
    4°C min night temperature
  • 10 hours of daylight per day in December in Osaka10
    10 hours of daylight per day
  • No heat & humidity in December in Osaka0
    No heat & humidity
  • 42 mm monthly rainfall in December in Osaka42
    42 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in December in Osaka2
    2 (Low) UV index
  • 16°C sea temperature in December in Osaka16
    16°C sea temperature

More about Osaka

Osaka by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Japan

Wild Frontiers: Top deals on Japan tours

  • Check out top deals on tours to Japan
  • Explore places to visit & most popular itineraries
  • Filter deals by experience, duration, level & price
Go to Wild Frontiers deal >>

View all Wild Frontiers offers

Wild FrontiersTour deal finder

The December weather guide for Japan (Osaka) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

More about Japan

How warm is it in Osaka in December?

Daytime temperatures usually reach 12°C in Osaka in December, falling to 4°C at night.

How sunny is it in Osaka in December?

There are normally 5 hours of bright sunshine each day in Osaka in December - that's 46% of daylight hours.

How warm is the sea around Osaka in December?

The average sea temperature around Osaka in December is 16°C.

Does it rain in Osaka in December?

There are usually 14 days with some rain in Osaka in December and the average monthly rainfall is 42mm.

Osaka December sunrise & sunset times

Browse the sunrise and sunset times for Osaka in December 2025. Select a month to view Osaka sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 06:47 16:47
Tuesday, 16th December 2025 06:58 16:49
Wednesday, 31st December 2025 07:05 16:57

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^