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Morioka Weather by Month
Average temperatures, rainfall and humidity for Morioka, Japan, month by month, built from OpenWeather’s historical records. Use it to see what a typical Morioka month looks like before you travel — then check the live Morioka forecast for the days ahead.
Warmest month
August
29°C average high
Coolest month
January
-6°C average low
Wettest month
July
128 mm of rain
Driest month
February
28 mm of rain
Average temperature and rainfall in Morioka by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 3°C | -6°C | -17°C / 16°C | 29 mm | 80% | 8 km/h |
| February | 3°C | -6°C | -20°C / 17°C | 28 mm | 77% | 9 km/h |
| March | 8°C | -2°C | -13°C / 22°C | 57 mm | 74% | 9 km/h |
| April | 15°C | 4°C | -11°C / 27°C | 96 mm | 71% | 9 km/h |
| May | 21°C | 9°C | -2°C / 33°C | 88 mm | 72% | 8 km/h |
| June | 24°C | 14°C | 2°C / 34°C | 88 mm | 79% | 7 km/h |
| July | 28°C | 18°C | 9°C / 36°C | 128 mm | 83% | 6 km/h |
| August | 29°C | 19°C | 7°C / 36°C | 117 mm | 83% | 7 km/h |
| September | 25°C | 14°C | 1°C / 36°C | 104 mm | 79% | 6 km/h |
| October | 18°C | 7°C | -6°C / 31°C | 102 mm | 80% | 6 km/h |
| November | 11°C | 2°C | -11°C / 21°C | 75 mm | 81% | 7 km/h |
| December | 5°C | -3°C | -14°C / 16°C | 53 mm | 81% | 7 km/h |
Best time to visit Morioka
The most comfortable time to visit Morioka is generally May to June and September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around July, totalling about 966 mm a year.
Travellers who prefer heat should aim for August, when highs average 29°C. July is the month to avoid if rain would spoil your plans — it averages 128 mm, roughly 5× the rainfall of the driest month (February).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Morioka forecast for what is happening now.
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