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Oirase

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Oirase Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Oirase year round climate

  • Spring (March–May): Average 4.1–14.4°C, mild climate with moderate rainfall, suitable for hiking and flower viewing. Common activities: Hiking, flower viewing, bird watching. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
  • Summer (June–August): Average 18.1–24.6°C, warm and humid, with more rainfall, especially in August. Common activities: Walking along the stream, forest bathing, photography. Recommended clothing: Breathable and sweat-wicking clothing, rain gear, sun hat.
  • Autumn (September–November): Average 14.2–21.0°C, pleasant climate, beautiful autumn leaves. Common activities: Maple leaf viewing, hiking, photography. Recommended clothing: Comfortable jacket, long-sleeved shirt, warm clothing.
  • Winter (December–February): Average -0.9–0.7°C, cold, with rain and snow. Common activities: Snow viewing (depending on snow conditions), onsen experience. Recommended clothing: Warm jacket, hat, gloves, scarf, waterproof and warm shoes.

Oirase climatological average

Annual average temperature: approx. 11°C / Annual rainfall: approx. 1212 mm / Summer humidity: 70%–80% / Rainiest month: August

Oirase monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
-0.9°C
74.9
February
-0.4°C
78.5
March
4.1°C
74.9
April
10.4°C
75.8
May
14.4°C
72.7
June
18.1°C
92.8
July
22.7°C
159.2
August
24.6°C
185.8
September
21°C
149.3
October
14.2°C
94.3
November
8.1°C
81.2
December
0.7°C
72.8

Oirase weather for the next seven days

5/16
Saturday
Sunny
25.8°C/9.7°C
5/17
Sunday
Sunny
20.2°C/8.1°C
5/18
Monday
Sunny
26.5°C/8.1°C
5/19
Tuesday
Overcast
23.5°C/10.2°C
5/20
Wednesday
Partly Cloudy
16.8°C/9.2°C
5/21
Thursday
Partly Cloudy
17.6°C/8.3°C
5/22
Friday
Sunny
20.5°C/7.4°C

Oirase Frequently Asked Questions and Useful Information for Travel

How do I get to Oirase Gorge?

Oirase Gorge is most easily reached by JR bus from either Aomori or Hachinohe stations. Please note service is suspended in winter. From either station, you'll take the bus bound for Towada-ko. There are numerous bus stops, such as Yakeyama, from which the trailhead can be reached.

Is Oirase Gorge worth visiting?

The Oirase Gorge is one of the most beautiful river valleys in Japan, with vibrant and fast flowing water. The gorge extends over 14 km from the contrastively calm Lake Towada. The Oirase Gorge shows its beauty in different ways throughout the four seasons.

How long does it take to hike the Oirase Gorge?

The Oirase Gorge stretches slightly over fourteen kilometers from the Field Museum to the Nenokuchi bus stop on the lakeshore, and walking the entire distance is estimated to take about four hours in one direction.

Where can I park for Oirase Gorge?

You can find a parking lot in front of Oirase Keiryu Onsen Ski Resort (free) or the Yasumiya parking lot (charges apply), and then use the shuttle bus (charges apply).

What are the best seasons to visit Oirase Gorge?

Oirase Gorge is beautiful year-round, but it particularly shines in autumn with its vibrant fall foliage and in spring and summer with lush greenery. Winter offers a different, serene beauty with snow-covered landscapes.