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Okunikko

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Okunikko Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Okunikko year round climate

  • Spring (March–May): 10.5–19.3°C on average, the climate transitions from cold to warm, with gradually increasing rainfall; suitable for hiking and mountain climbing. Common activities: flower viewing, hiking, mountain climbing. Recommended attire: light jacket, long-sleeved shirt, comfortable hiking shoes.
  • Summer (June–August): 23.7–29.5°C on average, hot and humid with more rainfall; afternoon thunderstorms are possible. Common activities: escaping the heat, playing in streams, forest bathing. Recommended attire: light and breathable clothing, rain gear, sunscreen.
  • Autumn (September–November): 19.1–27.1°C on average, pleasant climate with reduced rainfall, and the leaves turn red. Common activities: viewing autumn leaves, hiking, photography. Recommended attire: light jacket, long-sleeved shirt, comfortable walking shoes.
  • Winter (December–February): 5.1–7.2°C on average, cold and dry with a low probability of snowfall. Common activities: skiing (requires traveling to colder areas), onsen experience. Recommended attire: warm jacket, sweater, thermal clothing, waterproof and windproof shoes.

Okunikko climatological average

Annual average temperature: approx. 17.2°C / Annual rainfall: approx. 1565 mm / Summer humidity: 70%–80% / Rainiest month: June

Okunikko monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
5.1°C
47.4
February
6.1°C
54
March
10.5°C
122.5
April
16.4°C
160.1
May
19.3°C
199.8
June
23.7°C
248.8
July
28.9°C
176
August
29.5°C
224.1
September
27.1°C
116.5
October
19.1°C
105.2
November
13.9°C
91.9
December
7.2°C
19.2

Okunikko weather for the next seven days

5/14
Thursday
Sunny
25.6°C/13.1°C
5/15
Friday
Sunny
27°C/12.6°C
5/16
Saturday
Sunny
27.4°C/14.2°C
5/17
Sunday
Sunny
29°C/14.7°C
5/18
Monday
Sunny
28.8°C/15.5°C
5/19
Tuesday
Sunny
29.7°C/15.5°C
5/20
Wednesday
Partly Cloudy
28.6°C/17.5°C

Okunikko Frequently Asked Questions and Useful Information for Travel

How do I get to Okunikko from Tokyo?

To reach Okunikko from Tokyo, take the Tohoku Shinkansen from Tokyo Station or Ueno Station to Utsunomiya Station. From Utsunomiya Station, transfer to the local JR Nikko Line. The journey to JR Nikko Station takes approximately 45 minutes.

What is Okunikko?

Okunikko, meaning "Inner Nikko", is the higher-elevation mountainous region of Nikko located deeper into the mountains west of Nikko's city center. It is known for its natural beauty and dramatic landscapes.

Is Nikko worth the trip from Tokyo?

Yes, Nikko is absolutely worth a trip from Tokyo. Even for a day trip, visiting sights like Tosho-gu or venturing into the wilds of Okunikko to see Kegon Falls makes it feel like a world away from the capital, despite being only about 90 minutes away.

When is the best time to see fall foliage in Okunikko?

The fall foliage in Okunikko typically begins to appear in the high elevations around early October. The vibrant colors then descend to Lake Chuzenji by mid-October and the Irohazaka Winding Road in late October, before reaching the town of Nikko in early November.

What are the main attractions in Okunikko?

Okunikko is famous for its breathtaking natural attractions. Key sites include the majestic Kegon Falls, the serene Lake Chuzenji, and the dramatic Irohazaka Winding Road, offering stunning views throughout the year, especially during autumn.