Mutsu climate by month
What the weather is like
Mutsu has a warm-summer humid continental climate (Köppen Dfb): warm summers, cold winters and precipitation in every season.
The warmest month is August, when afternoons average 22° and nights 21°. February is the coolest month, with highs of 0° and lows of -2°. The difference between the warmest and the coolest month is about 22°, a large swing typical of continental interiors.
About 1,561 mm of precipitation falls in an average year. January is the wettest month (129 mm, 20 wet days) and April the driest (91 mm, 11 wet days). Cloud cover ranges from 34% in October to 52% in July.
The sea reaches about 22° in August. Sea temperatures lag the air by a month or two, so late summer is usually warmer for swimming than early summer.
Compared with Tokyo, the capital, Mutsu is 7.2° cooler on a August afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 22° · August
- Coldest nights
- -2° · January
- Wettest month
- January
- Driest month
- April
- Clearest skies
- October · 34% cloud
- Warmest sea
- 22° · August
- Longest day
- 15 h 08 min
- Shortest day
- 9 h 13 min
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columns, sea temperature lineTemperature curve
Average high, low and seaDaylight
Hours between sunrise and sunset on the 15th of each monthClimate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 1° | 0° | 2° | 5° | 10° | 15° | 19° | 22° | 21° | 15° | 7° | 3° |
| Average low | -2° | -2° | 0° | 3° | 8° | 13° | 17° | 21° | 19° | 12° | 4° | 0° |
| Precipitation | 129 mm | 98 mm | 91 mm | 91 mm | 113 mm | 113 mm | 172 mm | 172 mm | 196 mm | 128 mm | 135 mm | 123 mm |
| Wet days (≥1 mm) | 20.3 | 16.7 | 12 | 10.5 | 12 | 11.3 | 14.5 | 17.8 | 12 | 12.8 | 15 | 20.2 |
| Cloud cover | 40% | 41% | 36% | 38% | 45% | 50% | 52% | 45% | 43% | 34% | 35% | 39% |
| Sea temperature | 10° | 7° | 7° | 8° | 11° | 14° | 18° | 22° | 22° | 19° | 15° | 12° |
| Daylight | 9h 31 | 10h 37 | 11h 52 | 13h 17 | 14h 28 | 15h 08 | 14h 53 | 13h 52 | 12h 32 | 11h 10 | 9h 54 | 9h 13 |
| Month score | 21 | 20 | 27 | 30 | 24 | 48 | 58 | 61 | 66 | 50 | 23 | 21 |