Tsu, Japan climate
Cfa Humid subtropical
Tsu has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 89°F, while the coldest is January averaging around 36°F at night. Precipitation totals about 64 inches a year and is strongly seasonal — September alone averages 10.9 inches while December barely receives 1.86 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)Tsu climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 49 | 50 | 56 | 65 | 74 | 79 | 87 | 89 | 82 | 73 | 63 | 54 |
| Avg temp (°F) | 42 | 43 | 48 | 58 | 66 | 73 | 80 | 82 | 76 | 66 | 56 | 47 |
| Avg low (°F) | 36 | 36 | 41 | 50 | 60 | 67 | 75 | 77 | 71 | 60 | 49 | 40 |
| Precipitation (in) | 1.9 | 2.2 | 4.1 | 5.1 | 6.6 | 7.9 | 6.8 | 5.7 | 10.9 | 7.3 | 3.0 | 1.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 49 | 50 | 56 | 65 | 74 | 79 |
| Avg temp (°F) | 42 | 43 | 48 | 58 | 66 | 73 |
| Avg low (°F) | 36 | 36 | 41 | 50 | 60 | 67 |
| Precipitation (in) | 1.9 | 2.2 | 4.1 | 5.1 | 6.6 | 7.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 87 | 89 | 82 | 73 | 63 | 54 |
| Avg temp (°F) | 80 | 82 | 76 | 66 | 56 | 47 |
| Avg low (°F) | 75 | 77 | 71 | 60 | 49 | 40 |
| Precipitation (in) | 6.8 | 5.7 | 10.9 | 7.3 | 3.0 | 1.9 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 66 | 67 | 67 | 65 | 70 | 81 | 75 | 63 | 70 | 66 | 63 | 63 |
| Relative humidity (%) | 85 | 83 | 81 | 80 | 81 | 84 | 85 | 84 | 86 | 87 | 86 | 86 |
| Wind speed (mph) | 0.8 | 1.1 | 1.1 | 0.9 | 0.6 | 0.5 | 0.4 | 0.4 | 0.5 | 0.6 | 0.7 | 0.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 66 | 67 | 67 | 65 | 70 | 81 |
| Relative humidity (%) | 85 | 83 | 81 | 80 | 81 | 84 |
| Wind speed (mph) | 0.8 | 1.1 | 1.1 | 0.9 | 0.6 | 0.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 63 | 70 | 66 | 63 | 63 |
| Relative humidity (%) | 85 | 84 | 86 | 87 | 86 | 86 |
| Wind speed (mph) | 0.4 | 0.4 | 0.5 | 0.6 | 0.7 | 0.7 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Tsu, 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.