Mutsu, Japan climate
Cfb Oceanic / temperate
Mutsu has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is August with an average daily high near 78°F, while the coldest is January averaging around 23°F at night. Around 53 inches of precipitation falls each year, peaking in August (6.8 inches) and easing off in April (3.1 inches).
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Summers
Warm
Highs near 78°F in August.
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Winters
Cold
Lows near 23°F in January.
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Rain
Wet
About 53 in of rain a year.
Wettest in August
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Sky & trend
Often grey
Overcast skies dominate much of the year.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Mutsu climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 35 | 36 | 43 | 55 | 64 | 69 | 75 | 78 | 74 | 64 | 52 | 40 |
| Avg temp (°F) | 30 | 30 | 36 | 46 | 55 | 61 | 68 | 71 | 66 | 55 | 44 | 34 |
| Avg low (°F) | 23 | 23 | 28 | 37 | 46 | 54 | 62 | 65 | 58 | 45 | 36 | 28 |
| Precipitation (in) | 4.0 | 3.4 | 3.4 | 3.1 | 3.9 | 3.7 | 5.1 | 6.8 | 6.4 | 4.8 | 4.5 | 4.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 35 | 36 | 43 | 55 | 64 | 69 |
| Avg temp (°F) | 30 | 30 | 36 | 46 | 55 | 61 |
| Avg low (°F) | 23 | 23 | 28 | 37 | 46 | 54 |
| Precipitation (in) | 4.0 | 3.4 | 3.4 | 3.1 | 3.9 | 3.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 75 | 78 | 74 | 64 | 52 | 40 |
| Avg temp (°F) | 68 | 71 | 66 | 55 | 44 | 34 |
| Avg low (°F) | 62 | 65 | 58 | 45 | 36 | 28 |
| Precipitation (in) | 5.1 | 6.8 | 6.4 | 4.8 | 4.5 | 4.4 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 84 | 77 | 72 | 67 | 74 | 79 | 82 | 76 | 70 | 66 | 75 | 83 |
| Relative humidity (%) | 82 | 79 | 77 | 80 | 84 | 87 | 89 | 87 | 80 | 76 | 79 | 82 |
| Wind speed (mph) | 14.2 | 13.7 | 12.3 | 9.7 | 7.5 | 6.2 | 6.2 | 6.9 | 8.8 | 10.4 | 12.2 | 14.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 84 | 77 | 72 | 67 | 74 | 79 |
| Relative humidity (%) | 82 | 79 | 77 | 80 | 84 | 87 |
| Wind speed (mph) | 14.2 | 13.7 | 12.3 | 9.7 | 7.5 | 6.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 82 | 76 | 70 | 66 | 75 | 83 |
| Relative humidity (%) | 89 | 87 | 80 | 76 | 79 | 82 |
| Wind speed (mph) | 6.2 | 6.9 | 8.8 | 10.4 | 12.2 | 14.0 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Mutsu, inside the city.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.