Okayama
Weather by month
Current –

Okayama Weather in January

January in Okayama brings low temperatures, with highs of 11°C (52°F) and nights dropping to 3°C (37°F). It's also the driest month of the year, ideal for those who want to avoid rain.

Rainfall in Okayama in January

With the driest weather of the year, this month is a solid choice for exploring, even if you'll want to dress warmly. Typically, about 19 days will experience rainfall, with an average of 53 mm (2.1 in) for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.

Temperature in Okayama in January

In January, expect low temperatures in Okayama, with highs of 11°C (52°F) and lows of 3°C (37°F) at night. January is known for being in the winter season. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. With lows around 3°C (37°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep. The temperatures in January are often the mildest compared to the rest of the year.

Sunshine in Okayama in January

The city usually sees around 148 hours of sunlight, indicating a moderately sunny period.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. April, May, September, October and November typically offer the best weather for Okayama.

Okayama Temperature in January

Min Temperature
3°C (37°F)
Max Temperature
11°C (52°F)
Chance of Rain
62%
Precipitation
53 mm (2.1 in)
Rainy days
19 days
Humidity
69%
Sunshine
148 hours
Percentage Sunshine

Okayama Weather by Month

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

Daily Historical Temperatures

51-year average (1976-2026)

Based on our historical records, temperatures in Okayama typically stay consistent throughout January, with daily highs averaging around 11°C (52°F). Nights are cold, with lows around 1°C (34°F).

Average temperatures in January

Daily Historical Precipitation

51-year average (1976-2026)

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

Average precipitation in January

Historical weather records for Okayama in January

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

Okayama historical weather extremes in January

Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Okayama.

  • Okayama recorded its highest January temperature of 17°C (63°F) on January 4, 2016.
  • Okayama experienced its chilliest January day on January 24, 2016, reaching only 1°C (34°F).
  • Okayama registered its coldest January night on January 25, 1990, with temperatures dropping to -7°C (19°F).
  • Peak precipitation in January occurred on January 29, 2016, when 33 mm (1.3 in) of precipitation was measured.

Best Places in Japan in January

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

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 Okayama in January

The weather can swing between comfortable and chilly in January, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Okayama in January

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
    6/10

Okayama 3-Day Forecast

More climate data for Okayama

Popular in January

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

Bucket list

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