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Ichinoseki, Japan climate
Cfa Humid subtropical
Ichinoseki has a seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 29°C, while the coldest is January averaging around −4°C at night. Precipitation totals about 1223 mm a year and is strongly seasonal — July alone averages 181 mm while February barely receives 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)Ichinoseki climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 4 | 5 | 10 | 16 | 22 | 25 | 28 | 29 | 25 | 19 | 13 | 6 |
| Avg temp (°C) | 0 | 1 | 4 | 10 | 15 | 19 | 23 | 24 | 20 | 14 | 8 | 2 |
| Avg low (°C) | −4 | −3 | −1 | 4 | 10 | 15 | 19 | 21 | 17 | 10 | 3 | −1 |
| Precipitation (mm) | 47 | 40 | 76 | 87 | 107 | 122 | 181 | 162 | 156 | 119 | 68 | 59 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 4 | 5 | 10 | 16 | 22 | 25 |
| Avg temp (°C) | 0 | 1 | 4 | 10 | 15 | 19 |
| Avg low (°C) | −4 | −3 | −1 | 4 | 10 | 15 |
| Precipitation (mm) | 47 | 40 | 76 | 87 | 107 | 122 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 29 | 25 | 19 | 13 | 6 |
| Avg temp (°C) | 23 | 24 | 20 | 14 | 8 | 2 |
| Avg low (°C) | 19 | 21 | 17 | 10 | 3 | −1 |
| Precipitation (mm) | 181 | 162 | 156 | 119 | 68 | 59 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 65 | 67 | 66 | 69 | 77 | 79 | 71 | 72 | 66 | 62 | 64 |
| Relative humidity (%) | 91 | 89 | 84 | 81 | 81 | 84 | 86 | 86 | 86 | 86 | 88 | 90 |
| Wind speed (km/h) | 9.6 | 10.4 | 10.3 | 9.0 | 7.5 | 6.2 | 5.7 | 5.7 | 6.1 | 6.4 | 6.8 | 8.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 65 | 67 | 66 | 69 | 77 |
| Relative humidity (%) | 91 | 89 | 84 | 81 | 81 | 84 |
| Wind speed (km/h) | 9.6 | 10.4 | 10.3 | 9.0 | 7.5 | 6.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 71 | 72 | 66 | 62 | 64 |
| Relative humidity (%) | 86 | 86 | 86 | 86 | 88 | 90 |
| Wind speed (km/h) | 5.7 | 5.7 | 6.1 | 6.4 | 6.8 | 8.2 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Ichinoseki, about 2 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.