Mount Iwaki Volcano

Stratovolcano in Aomori Prefecture, nicknamed Tsugaru Fuji

A stratovolcano on Aomori's Tsugaru Peninsula, known for its conical profile; hikers use established trails for summit views and to watch seasonal changes across Aomori Prefecture.

Main image
Fifty-Years-of-Nikkatsu-1.jpg
ISS009-E-5111 - View of Japan.jpg
Iwakisan Syakujyôsimizu.jpg
Iwakisan Tanemakinawasiro.jpg
Iwakisan Yakibasiri hyutte.jpg
Japan, Aomori, Hirosaki - Iwakisan 1970.jpg
Japan, Aomori, Hirosaki - Iwakisan top 2014 1.jpg
Mawarizeki Ootameike Tsurunomaihashi IMG 6496x10 stitch.jpg
Main image

Mount Iwaki at a Glance#

Address: Mount Iwaki area, Aomori Prefecture, Japan

About Mount Iwaki#

Mount Iwaki is a conical stratovolcano in Aomori Prefecture, northern Honshu. It dominates the surrounding landscape and is a prominent landmark visible from Hirosaki and neighbouring districts.

Hiking routes ascend through forested lower slopes to alpine terrain near the summit and provide panoramic views over the Tsugaru Plain and, on clear days, towards the Sea of Japan. The mountain is popular with walkers in summer and with photographers who seek its symmetrical profile.

The mountain is a volcanic edifice formed by repeated eruptions and lava flows; it has long been important in local Shinto practice and regional identity. Shrines and shrine festivals tied to the mountain appear in local records and pilgrimages to its slopes have a long tradition.

Standing in western Aomori Prefecture, the peak rises above the Tsugaru Plain and is accessible from Hirosaki and nearby towns by road. It is a dominant feature of the prefecture’s western skyline.

  • Nickname: Nicknamed “Tsugaru Fuji” because of its symmetrical conical profile and dominant silhouette over the Tsugaru Plain.

Tips for Visiting Mount Iwaki#

  • Plan climbs or sightseeing for clear days early in the morning-Mount Iwaki's summit views are best before afternoon haze or clouds build over the Tsugaru plain.
  • If you can, time a visit for late spring when the slopes below the summit are often displaying cherry blossoms-many visitors arrive only for the mountain silhouette and miss the attractive low‑elevation blossom displays.
  • Allow time to visit the shrine complex at the mountain's base before or after your ascent; the shrine is the cultural starting point for many routes and adds context that many hikers skip.

Best Time to Visit Mount Iwaki#

Best visited in summer and early autumn for hiking, views and foliage; winter brings heavy snow and limited access.

Summer (best for hiking)
Jul-Aug · 15°C to 25°C
Trails and mountain facilities are generally open; alpine flowers and clear views are common in summer.
Autumn (foliage)
Sep-Oct · 5°C to 15°C
Autumn colors make the area scenic; weather cools and conditions can change quickly.
Winter (snowy)
Nov-Mar · -5°C to 5°C
Heavy snowfall and cold conditions limit access and require winter equipment; some lifts/roads may be closed.

Weather & Climate near Mount Iwaki#

Climate

Mount Iwaki's climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with mild summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -11°C to 21°C. Abundant rainfall (1664 mm/year), wettest in August.

Air Quality: AQI 45 Good
Best Time to Visit
JuneJulyAugust
Temperature & Rainfall
Temperature Range
34°
Warmest Month
-9°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -11° - -5° -17° 102 mm overcast 85% 8.0 m/s 0.1 low 9.5h
February Poor -11° - -5° -16° 88 mm overcast 82% 7.6 m/s 0.3 low 10.5h
March Poor -9° - -2° -12° 99 mm overcast 79% 6.3 m/s 0.5 moderate 11.8h
April Poor -3° - 5° -4° 117 mm overcast 79% 6.3 m/s 0.9 moderate 13.1h
May Acceptable 3° - 12° 4° 123 mm overcast 83% 5.2 m/s 1.3 high 14.3h
June Acceptable 8° - 16° 12° 138 mm overcast 84% 4.4 m/s 1.4 high 14.8h
July Acceptable 13° - 20° 16° 195 mm overcast 87% 4.1 m/s 1.4 high 14.6h
August Acceptable 14° - 21° 17° 218 mm overcast 83% 4.3 m/s 1.4 high 13.6h
September Acceptable 9° - 17° 13° 198 mm overcast 79% 4.6 m/s 1.1 high 12.3h
October Poor 3° - 11° 3° 139 mm overcast 78% 6.0 m/s 0.6 moderate 11.0h
November Poor -3° - 5° -5° 134 mm overcast 81% 6.9 m/s 0.3 low 9.8h
December Poor -8° - -2° -13° 113 mm overcast 85% 7.9 m/s 0.1 low 9.2h