easeweather.com
Kōyasan
AkitaAomoriAsahikawaBeppuChibaEbinaFujiFujikawaguchikoFujinomiyaFujiyoshidaFukuokaFuranoFurukawaGifu-shiHakodateHakoneHakubaHimejiHiroshimaItoshimaIwakuniKagoshimaKamakuraKamakuraKanazawaKaruizawaKobeKochiKumamotoKurashikiKusatsuKyoto
Kōyasan
MaihamaMatsumotoMinakamiNaganoNagasakiNagoyaNahaNakatsugawaNara-shiNiigataNikkōNiseko TownNoboribetsuOkinawaOsakaOtaruSapporoSendaiShibuyaShigaShimizuShimodaShinjukuShirakawaShirakawa-goTakayamaTateyamaTochigiTokyoTokyo Disney LandTokyo Disney ResortTottoriToyamaUrayasuUrayasuWakayamaWakkanaiYamagataYokohamaYufuinYuzawa More Locations
Japan weather

Weather in Kōyasan for January 2026

Your guide to Kōyasan weather in January - trends and predictions

    Snow Forecast ❄️

  • With an average of 3 snowy days, Kōyasan usually enjoys a light touch of snow in January.

    • Temperatures

  • In general, the average temperature in Kōyasan at the beginning of January is 6.6 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 6.3 °C by the end of January.

    • Rain 🌧️

  • The climate of Kōyasan in January is notably wet, with an average of 13 rainy days, and a total of 51.5 mm of precipitation.

    • More

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

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

Average dry days
15
Dry days
Average rainy days
13
Rainy days
Average snowy days
3
Snow days
Average temperatures
7°/-1°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
74 %
Avg humidity

Kōyasan Weather January

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

Temperatures trend during January in Kōyasan

See the weather trend as well as the moving average line

January weather in Kōyasan day by day

Click on a date for more information
December February
Date Weather Temperatures Rain Snow More
1 Jan. Patchy rain possible
Patchy rain possible
 7° /0° 0.1 mm 0 cm
2 Jan. Sunny
Sunny
 9° /-1° 0 mm 0 cm
3 Jan. Patchy rain possible
Patchy rain possible
 7° /0° 0.3 mm 0 cm
4 Jan. Overcast
Overcast
 5° /0° 0 mm 0 cm
5 Jan. Overcast
Overcast
 8° /-2° 0 mm 0 cm
6 Jan. Moderate or heavy rain shower
Moderate or heavy rain shower
 5° /0° 29.6 mm 0 cm
7 Jan. Patchy rain possible
Patchy rain possible
 5° /0° 2.3 mm 0 cm
8 Jan. Patchy rain possible
Patchy rain possible
 4° /0° 0.2 mm 0 cm
9 Jan. Patchy rain possible
Patchy rain possible
 3° /-3° 1.2 mm 0 cm
10 Jan. Light freezing rain
Light freezing rain
 3° /-5° 3.3 mm 1 cm
11 Jan. Patchy moderate snow
Patchy moderate snow
 3° /-2° 2.9 mm 0.6 cm
12 Jan. Light freezing rain
Light freezing rain
 6° /-1° 0.6 mm 0 cm
13 Jan. Patchy rain possible
Patchy rain possible
 5° /-1° 0.8 mm 0 cm
14 Jan. Overcast
Overcast
 7° /0° 0 mm 0 cm
15 Jan. Moderate rain at times
Moderate rain at times
 6° /0° 2.2 mm 0 cm
16 Jan. Light freezing rain
Light freezing rain
 4° /-1° 0.5 mm 0 cm
17 Jan. Patchy rain possible
Patchy rain possible
 5° /-1° 0.1 mm 0 cm
18 Jan. Sunny
Sunny
 8° /-2° 0 mm 0 cm
19 Jan. Overcast
Overcast
 12° /-1° 2 mm 0 cm
20 Jan. Patchy rain possible
Patchy rain possible
 10° /3° 1.3 mm 0 cm
21 Jan. Overcast
Overcast
 8° /0° 0 mm 0 cm
22 Jan. Sunny
Sunny
 8° /0° 0 mm 0 cm
23 Jan. Overcast
Overcast
 12° /0° 0 mm 0 cm
24 Jan. Overcast
Overcast
 11° /1° 0 mm 0 cm
25 Jan. Partly cloudy
Partly cloudy
 7° /0° 0 mm 0 cm
26 Jan. Overcast
Overcast
 7° /-2° 0 mm 0 cm
27 Jan. Patchy rain possible
Patchy rain possible
 10° /-1° 1.3 mm 0 cm
28 Jan. Overcast
Overcast
 5° /0° 1.1 mm 0 cm
29 Jan. Light freezing rain
Light freezing rain
 5° /0° 1 mm 0 cm
30 Jan. Light freezing rain
Light freezing rain
 4° /0° 0.1 mm 0 cm
31 Jan. Light snow
Light snow
 6° /-1° 0.6 mm 0 cm
Next
Important Notice
Our weather forecast for Kōyasan 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 Kōyasan forecast closer to your planned date for the most up-to-date weather information.
Change Month
‹
›

Kōyasan in January - FAQ

What are the expected maximum and minimum temperatures in Kōyasan during January?
Prepare for cooler days with highs just around 7° and colder nights, dipping below -1°.
How much rainfall should be expected in Kōyasan during January?
Moderate rainfall is anticipated in Kōyasan during January, with a total of 51.5 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
Will it snow in Kōyasan in January 2026?
Kōyasan experiences an average snowfall of 1.7 cm during January, occurring over 3 days.
What are the typical wind conditions in Kōyasan during January?
The average wind speed in Kōyasan during January is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Kōyasan in January?

As you prepare for your trip to Kōyasan 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 Kōyasan, during January, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Warm Clothing: Sweaters, hoodies, long pants
    • Rain Gear: Lightweight, waterproof clothing
    • Thermal Wear: Base layers for cold destinations
    • All-Weather Jacket: Waterproof and breathable
  • Footwear
    • Waterproof Shoes
    • 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
    • Umbrellas/Raincoats: For rainy days

Kōyasan snow forecast January 2026

Track daily snowfall levels and discover Kōyasan’s snowy potential this January ❄️

January rainfall patterns in Kōyasan

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

Quick links

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

Get accurate weather forecasts for Kōyasan, located at latitude 34.217 and longitude 135.583. Stay updated with localized weather information tailored for Kōyasan.

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