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Hachinohe, Japan climate
Cfa Humid subtropical
Hachinohe has a seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 27°C, while the coldest is January averaging around −4°C at night. Around 1045 mm of precipitation falls each year, peaking in September (156 mm) and easing off in February (40 mm).
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)Hachinohe climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 3 | 4 | 8 | 14 | 19 | 21 | 25 | 27 | 24 | 18 | 12 | 5 |
| Avg temp (°C) | −1 | 0 | 3 | 9 | 14 | 17 | 21 | 23 | 19 | 14 | 7 | 2 |
| Avg low (°C) | −4 | −4 | −1 | 4 | 9 | 13 | 18 | 20 | 16 | 9 | 3 | −2 |
| Precipitation (mm) | 44 | 40 | 57 | 63 | 88 | 104 | 137 | 142 | 156 | 110 | 55 | 49 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 3 | 4 | 8 | 14 | 19 | 21 |
| Avg temp (°C) | −1 | 0 | 3 | 9 | 14 | 17 |
| Avg low (°C) | −4 | −4 | −1 | 4 | 9 | 13 |
| Precipitation (mm) | 44 | 40 | 57 | 63 | 88 | 104 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 27 | 24 | 18 | 12 | 5 |
| Avg temp (°C) | 21 | 23 | 19 | 14 | 7 | 2 |
| Avg low (°C) | 18 | 20 | 16 | 9 | 3 | −2 |
| Precipitation (mm) | 137 | 142 | 156 | 110 | 55 | 49 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 74 | 71 | 68 | 66 | 68 | 74 | 79 | 73 | 70 | 65 | 69 | 73 |
| Relative humidity (%) | 91 | 89 | 84 | 80 | 80 | 83 | 86 | 85 | 84 | 83 | 86 | 89 |
| Wind speed (mph) | 9.2 | 9.4 | 8.9 | 7.4 | 5.7 | 4.5 | 4.3 | 4.4 | 5.1 | 6.0 | 7.2 | 8.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 74 | 71 | 68 | 66 | 68 | 74 |
| Relative humidity (%) | 91 | 89 | 84 | 80 | 80 | 83 |
| Wind speed (mph) | 9.2 | 9.4 | 8.9 | 7.4 | 5.7 | 4.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 73 | 70 | 65 | 69 | 73 |
| Relative humidity (%) | 86 | 85 | 84 | 83 | 86 | 89 |
| Wind speed (mph) | 4.3 | 4.4 | 5.1 | 6.0 | 7.2 | 8.5 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Hachinohe, about 3 km from the city centre.
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.