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Ōmagari, Japan climate
Cfa Humid subtropical
Ōmagari has a strongly 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 24°F at night. Around 85 inches of precipitation falls each year, peaking in December (10.6 inches) and easing off in April (4.2 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)Ōmagari climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 36 | 38 | 45 | 58 | 70 | 77 | 82 | 85 | 78 | 66 | 54 | 41 |
| Avg temp (°F) | 30 | 31 | 36 | 47 | 58 | 66 | 73 | 75 | 67 | 55 | 44 | 34 |
| Avg low (°F) | 24 | 23 | 27 | 36 | 47 | 57 | 66 | 67 | 58 | 46 | 35 | 28 |
| Precipitation (in) | 10.1 | 6.6 | 5.2 | 4.2 | 4.5 | 5.0 | 7.7 | 7.6 | 6.6 | 7.6 | 9.5 | 10.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 36 | 38 | 45 | 58 | 70 | 77 |
| Avg temp (°F) | 30 | 31 | 36 | 47 | 58 | 66 |
| Avg low (°F) | 24 | 23 | 27 | 36 | 47 | 57 |
| Precipitation (in) | 10.1 | 6.6 | 5.2 | 4.2 | 4.5 | 5.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 82 | 85 | 78 | 66 | 54 | 41 |
| Avg temp (°F) | 73 | 75 | 67 | 55 | 44 | 34 |
| Avg low (°F) | 66 | 67 | 58 | 46 | 35 | 28 |
| Precipitation (in) | 7.7 | 7.6 | 6.6 | 7.6 | 9.5 | 10.6 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 83 | 80 | 78 | 73 | 71 | 74 | 79 | 71 | 74 | 72 | 78 | 84 |
| Relative humidity (%) | 83 | 81 | 77 | 78 | 80 | 82 | 85 | 82 | 79 | 78 | 80 | 83 |
| Wind speed (mph) | 9.7 | 9.9 | 8.2 | 5.9 | 4.2 | 3.6 | 3.5 | 3.8 | 4.6 | 5.6 | 6.7 | 8.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 83 | 80 | 78 | 73 | 71 | 74 |
| Relative humidity (%) | 83 | 81 | 77 | 78 | 80 | 82 |
| Wind speed (mph) | 9.7 | 9.9 | 8.2 | 5.9 | 4.2 | 3.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 71 | 74 | 72 | 78 | 84 |
| Relative humidity (%) | 85 | 82 | 79 | 78 | 80 | 83 |
| Wind speed (mph) | 3.5 | 3.8 | 4.6 | 5.6 | 6.7 | 8.4 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Higashiyuri, about 23 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.