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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 85°F, while the coldest is January averaging around 26°F at night. Precipitation totals about 48 inches a year and is strongly seasonal — July alone averages 7.1 inches while February barely receives 1.58 inches.
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 (°F) | 39 | 41 | 49 | 61 | 71 | 76 | 82 | 85 | 78 | 67 | 55 | 43 |
| Avg temp (°F) | 32 | 33 | 39 | 50 | 60 | 67 | 73 | 76 | 69 | 57 | 46 | 36 |
| Avg low (°F) | 26 | 26 | 31 | 39 | 50 | 59 | 67 | 69 | 62 | 49 | 37 | 29 |
| Precipitation (in) | 1.8 | 1.6 | 3.0 | 3.4 | 4.2 | 4.8 | 7.1 | 6.4 | 6.2 | 4.7 | 2.7 | 2.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 39 | 41 | 49 | 61 | 71 | 76 |
| Avg temp (°F) | 32 | 33 | 39 | 50 | 60 | 67 |
| Avg low (°F) | 26 | 26 | 31 | 39 | 50 | 59 |
| Precipitation (in) | 1.8 | 1.6 | 3.0 | 3.4 | 4.2 | 4.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 82 | 85 | 78 | 67 | 55 | 43 |
| Avg temp (°F) | 73 | 76 | 69 | 57 | 46 | 36 |
| Avg low (°F) | 67 | 69 | 62 | 49 | 37 | 29 |
| Precipitation (in) | 7.1 | 6.4 | 6.2 | 4.7 | 2.7 | 2.3 |
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 (mph) | 6.0 | 6.5 | 6.4 | 5.6 | 4.6 | 3.9 | 3.5 | 3.5 | 3.8 | 4.0 | 4.2 | 5.1 |
| 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 (mph) | 6.0 | 6.5 | 6.4 | 5.6 | 4.6 | 3.9 |
| 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 (mph) | 3.5 | 3.5 | 3.8 | 4.0 | 4.2 | 5.1 |
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.