Kosai
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Kosai Weather in January

January in Kosai typically sees daytime highs of 11°C (52°F) and nighttime lows of 3°C (37°F). With the least rainfall of the year, it's a reliably dry month. It falls within the winter season.

Rainfall in Kosai in January

This is the driest month, making it a great choice for planning outdoor excursions, even if the weather is on the cooler side. Typically, about 11 days will experience rainfall, with an average of 71 mm (2.8 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in Kosai in January

In January, expect low temperatures in Kosai, with highs of 11°C (52°F) and lows of 3°C (37°F) at night. January is typically considered a winter month. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. With overnight lows of 3°C (37°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets. During this period, the city experiences its coolest temperatures annually.

Sunshine in Kosai in January

With approximately 209 hours of sunshine, the days are filled with clear skies. Despite it being a cool month, it makes for pleasant days outside.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. April and May typically offer the best weather for Kosai.

Kosai Temperature in January

Min Temperature
3°C (37°F)
Max Temperature
11°C (52°F)
Chance of Rain
38%
Precipitation
71 mm (2.8 in)
Rainy days
11 days
Humidity
56% *
Sunshine
209 hours *
Percentage Sunshine
*
* Data from: Hamamatsu, Japan (18 KM, 11 Miles).

Kosai Weather by Month

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

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 Kosai in January

The weather can be unpredictable in January, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. Rain is likely on several days, so bring a good rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Kosai in January

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

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

Kosai 3-Day Forecast

More climate data for Kosai

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.