easeweather.com
Karuizawa
AkitaAomoriAsahikawaBeppuBieiChibaEbinaFujiFujikawaguchikoFujinomiyaFujiyoshidaFukuokaFuranoFurukawaGifu-shiHakodateHakoneHakubaHimejiHiroshimaItoshimaIwakuniJōzankeiKagoshimaKamakuraKamakuraKanazawa
Karuizawa
KitakyushuKobeKochiKumamotoKurashikiKusatsuKushiroKyotoKōyasanMaihamaMatsumotoMinakamiMonzenmachi-kamikōchiMoriokaNaganoNagasakiNagoyaNahaNakatsugawaNara-shiNiigataNikkōNiseko TownNoboribetsuObihiroOkinawaOsakaOtaruSapporoSendaiShibuyaShigaShimizuShimodaShinjukuShirakawaShirakawa-goSounkyo GorgeTakayamaTateyamaTochigiTokyoTokyo Disney LandTokyo Disney ResortTottoriToyamaUrayasuUrayasuWakayamaWakkanaiYamagataYokohamaYufuinYuzawa More Locations
Japan weather

Weather in Karuizawa for January 2026

Your guide to Karuizawa weather in January - trends and predictions

    Snow Forecast ❄️

  • Expect heavy snowfall in Karuizawa during January, with an average of 20 snowy days.
    According to Karuizawa snow forecast for January 2026, 2 snowy days are expected until the end of the month. The closest date with snow is Thursday, 29 January.

    • Temperatures

  • Until now, January 2026 in Karuizawa has been nearly identical to the historical average, with a temperature of 0.9 °C (showing only a slight deviation of 0 °C).

  • The forecast for the upcoming days in Karuizawa predicts a temperature of 1.3 °C, which is slightly above the historical average.

  • In general, the average temperature in Karuizawa at the beginning of January is 1 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of -0.1 °C by the end of January.

    • More

  • Is January a good time to visit Karuizawa? check out the best time to travel to Karuizawa page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
11
Dry days
Average rainy days
0
Rainy days
Average snowy days
20
Snow days
Average temperatures
1°/-6°
Temperatures
Average wind speed
13 km/h
Avg max wind
Average humidity
69 %
Avg humidity

Karuizawa Weather January

Move between months or click on a day
December
February
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
0°
2
Sunny
1°
3
Moderate or heavy snow showers
0°
4
Partly cloudy
-2°
5
Cloudy
3°
6
Patchy rain possible
3°
7
Moderate or heavy snow showers
2°
8
Moderate or heavy snow showers
-2°
9
Sunny
0°
10
Patchy light snow
0°
11
Overcast
1°
12
Patchy moderate snow
1°
13
Moderate or heavy snow showers
2°
14
Sunny
3°
15
Patchy heavy snow
3°
16
Heavy snow
0°
17
Sunny
2°
18
Overcast
1°
19
Light freezing rain
3°
20
Heavy snow
2°
21
Heavy snow
0°
22
Heavy snow
0°
23
Light snow showers
2°
24
Moderate or heavy snow showers
0°
25
Light snow showers
-1°
26
Light freezing rain
0°
27
Sunny
2°
28
Light freezing rain
0°
29
Patchy moderate snow
0°
30
Patchy light snow
-1°
31
Light freezing rain
-1°

Temperatures trend during January in Karuizawa

See the weather trend as well as the moving average line

January weather in Karuizawa day by day

Click on a date for more information
December February
Date Weather Temperatures Rain Snow More
1 Jan. Sunny
Sunny
 0° /-7° 0 mm 0 cm
2 Jan. Sunny
Sunny
 1° /-7° 1.8 mm 1.2 cm
3 Jan. Moderate or heavy snow showers
Moderate or heavy snow showers
 0° /-7° 0.9 mm 0.5 cm
4 Jan. Partly cloudy
Partly cloudy
 -2° /-10° 0.1 mm 0 cm
5 Jan. Cloudy
Cloudy
 3° /-6° 0.9 mm 0.4 cm
6 Jan. Patchy rain possible
Patchy rain possible
 3° /-5° 3.4 mm 2 cm
7 Jan. Moderate or heavy snow showers
Moderate or heavy snow showers
 2° /-5° 1.7 mm 0.9 cm
8 Jan. Moderate or heavy snow showers
Moderate or heavy snow showers
 -2° /-7° 2.6 mm 1.7 cm
9 Jan. Sunny
Sunny
 0° /-10° 0.3 mm 0.1 cm
10 Jan. Patchy light snow
Patchy light snow
 0° /-8° 0.3 mm 0.1 cm
11 Jan. Overcast
Overcast
 1° /-9° 1.6 mm 0.6 cm
12 Jan. Patchy moderate snow
Patchy moderate snow
 1° /-8° 0.6 mm 0.4 cm
13 Jan. Moderate or heavy snow showers
Moderate or heavy snow showers
 2° /-7° 2 mm 1.3 cm
14 Jan. Sunny
Sunny
 3° /-8° 0 mm 0 cm
15 Jan. Patchy heavy snow
Patchy heavy snow
 3° /-6° 2 mm 1 cm
16 Jan. Heavy snow
Heavy snow
 0° /-6° 2.3 mm 0.6 cm
17 Jan. Sunny
Sunny
 2° /-7° 0.2 mm 0 cm
18 Jan. Overcast
Overcast
 1° /-7° 0 mm 0 cm
19 Jan. Light freezing rain
Light freezing rain
 3° /-5° 0 mm 0 cm
20 Jan. Heavy snow
Heavy snow
 2° /-5° 2.5 mm 1.8 cm
21 Jan. Heavy snow
Heavy snow
 0° /-5° 10.8 mm 7.6 cm
22 Jan. Heavy snow
Heavy snow
 0° /-6° 1.3 mm 0.9 cm
23 Jan. Light snow showers
Light snow showers
 2° /-8° 0.3 mm 0.1 cm
24 Jan. Moderate or heavy snow showers
Moderate or heavy snow showers
 0° /-7° 2.9 mm 2 cm
25 Jan. Light snow showers
Light snow showers
 -1° /-8° 1.1 mm 0.6 cm
26 Jan. Light freezing rain
Light freezing rain
 0° /-10° 0.3 mm 0.1 cm
27 Jan. Sunny
Sunny
 2° /-7° 0 mm 0 cm
28 Jan. Light freezing rain
Light freezing rain
 0° /-6° 0.3 mm 0 cm
29 Jan. Patchy moderate snow
Patchy moderate snow
 0° /-8° 0.7 mm 0.4 cm
30 Jan. Patchy light snow
Patchy light snow
 -1° /-7° 0.8 mm 0.3 cm
31 Jan. Light freezing rain
Light freezing rain
 -1° /-9° 0.1 mm 0 cm
Next
Important Notice
Our weather forecast for Karuizawa in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Karuizawa forecast closer to your planned date for the most up-to-date weather information.
Change Month
‹
›

Karuizawa weather in January vs December vs February

Compare January weather in Karuizawa with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
DecemberJanuaryFebruary
WeatherModerate snow
Moderate snow
Moderate snow
Moderate snow
Moderate snow
Moderate snow
Temperatures2°/-5°1°/-6°1°/-7°
Rainfall29 mm47 mm65 mm
Snowfall16 cm29 cm35 cm
Wind12.9 km/h12.6 km/h12 km/h
Humidity72%69%71%
Rainy days1 days0 days0 days
Snow days13 days20 days23 days
Dry days17 days11 days6 days

Planning a trip to Karuizawa? Discover the best time to visit

Karuizawa in January - FAQ

What are the expected maximum and minimum temperatures in Karuizawa during January?

Brace for cold days with temperatures not exceeding 1° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in Karuizawa during January?

In January, Karuizawa can expect light to moderate rainfall, totaling 47 mm across approximately 0 days. Occasional showers are possible, and planning ahead for them could be helpful.

Will it snow in Karuizawa in January 2026?

Karuizawa experiences an average snowfall of 29.28 cm during January, occurring over 20 days.

What are the typical wind conditions in Karuizawa during January?

The average wind speed in Karuizawa during January is 13 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Karuizawa in January?

As you prepare for your trip to Karuizawa in January, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Karuizawa, during January, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Warm Clothing: Sweaters, hoodies, long pants
    • Thermal Wear: Base layers for cold destinations
    • All-Weather Jacket: Waterproof and breathable
  • Footwear
    • Insulated Boots: For snowy and extremely cold temperatures
  • Accessories
    • Scarves: To protect you from the cold wind
    • Gloves/Mittens: Essential for cold weather
    • Warm Hats: Warm hats for insulation in cold weather

Karuizawa snow forecast January 2026

Track daily snowfall levels and discover Karuizawa’s snowy potential this January ❄️
On average, Karuizawa sees 20 snowy days during January, with approximately 29.3 cm of total snowfall.

January rainfall patterns in Karuizawa

Explore the daily rainfall trends and prepare for Karuizawas January weather 💧

Quick links

More Karuizawa weather pages
You are here
Location coordinates Where is Karuizawa?

Get accurate weather forecasts for Karuizawa, located at latitude 36.35 and longitude 138.633. Stay updated with localized weather information tailored for Karuizawa.

Found a mistake?
We appreciate your attention to details. Tell us here.