Morioka climate
Morioka (Japan) has a hot-summer humid continental climate (Köppen Dfa). The average temperature over the year is 10 °C50 °F, and about 1,384 mm54 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Morioka climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 032 | −621 | −327 | 763.0 |
| Feb | 134 | −620 | −327 | 552.2 |
| Mar | 642 | −327 | 235 | 863.4 |
| Apr | 1356 | 236 | 846 | 1003.9 |
| May | 2067 | 948 | 1457 | 1044.1 |
| Jun | 2475 | 1457 | 1966 | 1164.6 |
| Jul | 2781 | 1865 | 2373 | 1857.3 |
| Aug | 2883 | 1967 | 2475 | 1716.7 |
| Sep | 2475 | 1559 | 1967 | 1526.0 |
| Oct | 1763 | 847 | 1355 | 1425.6 |
| Nov | 1051 | 236 | 643 | 973.8 |
| Dec | 338 | −327 | 032 | 1003.9 |
| Year | 2883 | −620 | 1050 | 1,38454 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 96% | 70% | 2.0 | 9:39 |
| Feb | 95% | 72% | 2.7 | 10:39 |
| Mar | 88% | 71% | 3.6 | 11:50 |
| Apr | 82% | 69% | 4.6 | 13:12 |
| May | 81% | 71% | 5.0 | 14:21 |
| Jun | 83% | 75% | 5.0 | 14:58 |
| Jul | 86% | 81% | 4.4 | 14:43 |
| Aug | 86% | 74% | 4.3 | 13:43 |
| Sep | 86% | 74% | 3.7 | 12:23 |
| Oct | 86% | 67% | 2.9 | 11:04 |
| Nov | 89% | 66% | 2.1 | 9:56 |
| Dec | 93% | 71% | 1.7 | 9:22 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Morioka is like
The warmest month is August, with an average high of 28 °C83 °F and a low of 19 °C67 °F. The coldest is January, when highs average 0 °C32 °F and lows −6 °C21 °F. Seasons are strongly marked: the warmest month is on average 26.7 °C48 °F warmer than the coldest.
It is wet, with about 1,384 mm54 in of precipitation per year. The wettest three-month stretch is July–September, which brings 37% of the annual total. The wettest month is July (185 mm7.3 in), the driest is February (55 mm2.2 in).
Relative humidity ranges from 81% in May to 96% in January. The clearest skies (lowest average cloud amount, 66%) are typical of November. Average wind speed near the ground ranges from 0 km/h (0 mph) in July to 4 km/h (2 mph) in February. Daylight lasts from about 9.4 hours in December to 15.0 hours in June.
Best time to visit Morioka
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May and June: average highs of 20 °C67 °F to 24 °C75 °F with 104 mm4.1 in to 116 mm4.6 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 0 °C32 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Morioka
- Winter (December–February) — highs 032 to 3 °C38 °F, lows −620 to −3 °C27 °F, about 77 mm3.0 in of precipitation a month. Pack a winter coat, hat, gloves and warm, non-slip boots and shoes with good grip, as frost is common.
- Spring (March–May) — highs 642 to 20 °C67 °F, lows −327 to 9 °C48 °F, about 96 mm3.8 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an umbrella or light rain jacket.
- Summer (June–August) — highs 2475 to 28 °C83 °F, lows 1457 to 19 °C67 °F, about 157 mm6.2 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
- Autumn (September–November) — highs 1051 to 24 °C75 °F, lows 236 to 15 °C59 °F, about 130 mm5.1 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an umbrella or light rain jacket.
How Morioka compares
Compared with Akita, about 88 km to the west, Morioka is on average 2.2 °C4 °F cooler and receives 13% less precipitation (1,384 mm54 in vs 1,596 mm63 in). The difference is largest in January (4.5 °C8 °F cooler).
Of the 111 places in Japan covered by World Climates, Morioka is the 104th warmest by annual mean temperature and the 96th wettest by annual precipitation. See all of them on the Japan climate page.
Places in other countries with the most similar temperature and rainfall pattern: Waterbury (United States, Dfa), Springfield (United States, Dfa) and Hartford (United States, Dfa).
Nearby places
- Oshu 62 km · 11 °C52 °F · 1,411 mm56 in
- Ichinoseki 87 km · 11 °C52 °F · 1,411 mm56 in
- Akita 88 km · 12 °C54 °F · 1,596 mm63 in
- Hachinohe 94 km · 10 °C51 °F · 1,267 mm50 in
- Hirosaki 115 km · 10 °C51 °F · 1,478 mm58 in
- Ōsaki 125 km · 12 °C54 °F · 1,316 mm52 in
- Aomori 129 km · 11 °C51 °F · 1,412 mm56 in
- Sakata 141 km · 12 °C54 °F · 1,767 mm70 in
Frequently asked questions
What is the warmest month in Morioka?
August is the warmest month in Morioka, with an average high of 28 °C (83 °F) and an average low of 19 °C (67 °F).
What is the coldest month in Morioka?
January is the coldest month, with an average high of 0 °C (32 °F) and an average low of -6 °C (21 °F).
When does it rain the most in Morioka?
July is the wettest month with about 185 mm (7.3 in) of precipitation; February is the driest with about 55 mm (2.2 in).
What is the best time to visit Morioka?
Judging by long-term averages, the most comfortable months are May and June.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 461 m, while Morioka lies at about 138 m. Temperatures on this page were therefore adjusted by +2.1 °C3.8 °F using the standard lapse rate of 6.5 °C per 1,000 m.