Tohoku Weather Guide

Morioka & Koiwai Weather & What to Wear

Morioka, Koiwai Farm, Mt. Iwate, Tsunagi Onsen

The area around Morioka, a former castle town with views of Mt. Iwate, the vast Koiwai Farm and Tsunagi Onsen. Being inland, it has big temperature swings: summer highs of around 28°C, and winter mornings dropping to around -5°C. Snow settles in winter, but not as much as on the Sea of Japan side.

January low
−5.2℃
August high
28.4℃
Max snow depth
32cm
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Forecast

Forecast: Today & the Next 7 Days

JMA forecast issued Oct 22, 11 AM

Every 3 Hours: Today & Tomorrow

  1. Today
    3 PM
    Sunny
    11°
    ☂ 0%
    10–14m/s
  2. 6 PM
    Sunny
    10°
    ☂ 0%
    3–5m/s
  3. 9 PM
    Sunny
    9°
    ☂ 0%
    3–5m/s
  4. Tomorrow
    12 AM
    Sunny
    6°
    ☂ 0%
    0–2m/s
  5. 3 AM
    Sunny
    4°
    ☂ 0%
    0–2m/s
  6. 6 AM
    Sunny
    3°
    ☂ 0%
    0–2m/s
  7. 9 AM
    Sunny
    9°
    ☂ 0%
    3–5m/s
  8. 12 PM
    Sunny
    14°
    ☂ 0%
    3–5m/s
  9. 3 PM
    Sunny
    16°
    ☂ 0%
    3–5m/s
  10. 6 PM
    Sunny
    12°
    ☂ 0%
    0–2m/s
  11. 9 PM
    Sunny
    10°
    ☂ 0%
    0–2m/s

Weather and wind are for the wider area; temperature is for the main forecast point. Chance of rain is for the 6-hour period.

  1. Today
    10/22(Thu)
    Cloudy, then sunny
    15°/11°
    Observed: 11°
    ☂ 0%
  2. Tomorrow
    10/23(Fri)
    Sunny
    17°/3°
    ☂ 0%
  3.  
    10/24(Sat)
    Cloudy
    20°/4°
    ☂ 40%
  4.  
    10/25(Sun)
    Cloudy
    20°/11°
    ☂ 40%
    Reliability C
  5.  
    10/26(Mon)
    Cloudy, brief rain
    18°/10°
    ☂ 50%
    Reliability C
  6.  
    10/27(Tue)
    Cloudy, brief rain
    16°/8°
    ☂ 50%
    Reliability C
  7.  
    10/28(Wed)
    Cloudy
    13°/4°
    ☂ 40%
    Reliability B
  • ☂ Chance of rain
  • From day 3, the weekly forecast covers a wider prefecture-level area.
  • Reliability of the weekly forecast (A: high, B: fairly high, C: fairly low)
  • "Observed" is the temperature measured so far today by JMA weather stations (AMeDAS), not a forecast.
  • Source: Japan Meteorological Agency (weather forecast)
Best Season

Best Time to Visit Morioka & Koiwai

For cherry blossoms

The cherry blossoms usually open around April 18, and the city's trees are at their best toward late April.

For comfortable weather

May to June and September to October are sunny with pleasant temperatures, ideal for exploring Koiwai Farm and the foothills of Mt. Iwate.

Climate

Morioka & Koiwai Temperature & Snow Through the Year

Monthly high / low temperature (°C)

HighLow
-10-505101520253035JanFebMarAprMayJunJulAugSepOctNovDec28.4℃−5.2℃Jan High 2.0℃ / Low −5.2℃Feb High 3.2℃ / Low −4.8℃Mar High 7.5℃ / Low −1.8℃Apr High 14.4℃ / Low 3.2℃May High 20.3℃ / Low 9.1℃Jun High 24.1℃ / Low 14.2℃Jul High 27.1℃ / Low 18.8℃Aug High 28.4℃ / Low 19.8℃Sep High 24.3℃ / Low 15.2℃Oct High 17.9℃ / Low 7.9℃Nov High 10.9℃ / Low 1.8℃Dec High 4.5℃ / Low −2.5℃

Monthly max snow depth (cm)

010203040Jan 27cmJanFeb 32cmFebMar 21cmMarApr 3cmAprMayJunJulAugSepOctNov 4cmNovDec 19cmDec32cm
Month by Month

Month-by-Month Weather & What to Wear

MonthHighLowPrecip.Max snow depthWhat to wear
Jan2.0℃−5.2℃49.4mm27cmFull winter gearDown coat, thermal layers, gloves, hat, snow boots
Feb3.2℃−4.8℃48mm32cmWinter coatDown or heavy coat, gloves, waterproof shoes
Mar7.5℃−1.8℃82.1mm21cmWinter coatDown or heavy coat, gloves, waterproof shoes
Apr14.4℃3.2℃85.4mm3cmLong sleeves + jacketLong sleeves with a light jacket or hoodie
May20.3℃9.1℃106.5mm—T-shirt + layerT-shirt, plus light long sleeves for mornings and evenings
Jun24.1℃14.2℃109.4mm—T-shirtT-shirt, with a light layer for evenings and air conditioning
Jul27.1℃18.8℃197.5mm—T-shirtT-shirt, with a light layer for evenings and air conditioning
Aug28.4℃19.8℃185.4mm—T-shirtT-shirt, with a light layer for evenings and air conditioning
Sep24.3℃15.2℃151.7mm—T-shirtT-shirt, with a light layer for evenings and air conditioning
Oct17.9℃7.9℃108.7mm—Long sleeves + jacketLong sleeves with a light jacket or hoodie
Nov10.9℃1.8℃85.6mm4cmWarm jacketLight down or winter coat, sweater
Dec4.5℃−2.5℃70.2mm19cmWinter coatDown or heavy coat, gloves, waterproof shoes

Clothing tips are based on the normal high temperature and snow depth. Bring an extra layer for mornings and evenings.

Where to Stay · Agoda

Places to Stay near Morioka & KoiwaiPR

Prices and availability are shown on Agoda.

Seasons

Morioka & Koiwai Through the Seasons

🌸

Spring

Mar–May

Cherry blossoms from mid to late April. April mornings are around 3°C, so you'll still need a winter jacket.

☀️

Summer

Jun–Aug

Highs of 27–28°C. July and August are fairly rainy, so a folding umbrella is handy.

🍁

Autumn

Sep–Nov

The October high is around 18°C, with mornings around 8°C. During autumn leaf season, be ready for cold mornings and evenings.

❄️

Winter

Dec–Feb

Highs of 2–3°C in January and February, with January mornings around -5°C. In February, around 32 cm of snow is on the ground.

Events

Events & festivals in Morioka & Koiwai

Cherry Blossoms

Cherry Blossoms in Morioka & Koiwai

Winter Scenery

Winter Scenery in Morioka & Koiwai

Autumn Leaves

Autumn Leaves in Morioka & Koiwai

Mountain & highland

Hachimantai

Tohoku ・ Hachimantai, Iwate

🍁 Typical peak: Late Sep – Early Oct

Attractions

Attractions in Morioka & Koiwai

Experience

Koiwai Farm Makiba-en

Tohoku ・ Morioka & Koiwai

The visitor area of Koiwai Farm in Shizukuishi, Iwate Prefecture. You can tour cattle barns designated as Important Cultural Properties, ride horses, and join programs that take you around the farm. It's about 35 minutes by bus from Morioka Station, or about 15 minutes by car from Morioka IC.

Travel Passes

Travel passes you can use in Morioka & Koiwai

🚄 JR

JR EAST PASS

Tohoku ・ 5 or 10 consecutive days from the first day of use

From ¥35,000

🚄 JR

Japan Rail Pass

Nationwide ・ Three types: 7, 14 or 21 days. The period of use cannot be extended or changed

From ¥50,000

Plan Your Trip

Plan Your Morioka & Koiwai TripPR

Other Areas

Weather in Other Areas

Back to the Tohoku Weather Guide (all months & areas) →

Source: Japan Meteorological Agency (climate normals 1991-2020). Compiled by tripuuu.log. Temperature and snow figures are normals from the Morioka station; actual weather varies from year to year.