Sado, Japan climate
Cfa Humid subtropical
Sado has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 30°C, while the coldest is January averaging around 0°C at night. Around 1760 mm of precipitation falls each year, peaking in July (233 mm) and easing off in April (105 mm).
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Summers
Warm
Highs near 30°C in August.
❄️
Winters
Chilly
Lows near 0°C in January.
🌧️
Rain
Very wet
About 1760 mm of rain a year.
Wettest in July
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Sky & trend
Often grey
Overcast skies dominate much of the year.
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)Sado climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 6 | 6 | 10 | 15 | 20 | 23 | 27 | 30 | 26 | 21 | 15 | 9 |
| Avg temp (°C) | 3 | 3 | 6 | 11 | 16 | 20 | 24 | 26 | 23 | 17 | 11 | 6 |
| Avg low (°C) | 0 | 0 | 2 | 7 | 12 | 17 | 22 | 23 | 19 | 13 | 7 | 3 |
| Precipitation (mm) | 164 | 119 | 109 | 105 | 107 | 139 | 233 | 143 | 137 | 139 | 155 | 210 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 6 | 6 | 10 | 15 | 20 | 23 |
| Avg temp (°C) | 3 | 3 | 6 | 11 | 16 | 20 |
| Avg low (°C) | 0 | 0 | 2 | 7 | 12 | 17 |
| Precipitation (mm) | 164 | 119 | 109 | 105 | 107 | 139 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 30 | 26 | 21 | 15 | 9 |
| Avg temp (°C) | 24 | 26 | 23 | 17 | 11 | 6 |
| Avg low (°C) | 22 | 23 | 19 | 13 | 7 | 3 |
| Precipitation (mm) | 233 | 143 | 137 | 139 | 155 | 210 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 93 | 88 | 79 | 70 | 71 | 75 | 76 | 65 | 71 | 71 | 79 | 90 |
| Relative humidity (%) | 79 | 76 | 74 | 77 | 80 | 82 | 85 | 80 | 76 | 73 | 75 | 78 |
| Wind speed (mph) | 13.9 | 13.2 | 10.9 | 8.1 | 6.0 | 5.3 | 5.1 | 6.0 | 7.6 | 9.0 | 10.7 | 13.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 93 | 88 | 79 | 70 | 71 | 75 |
| Relative humidity (%) | 79 | 76 | 74 | 77 | 80 | 82 |
| Wind speed (mph) | 13.9 | 13.2 | 10.9 | 8.1 | 6.0 | 5.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 76 | 65 | 71 | 71 | 79 | 90 |
| Relative humidity (%) | 85 | 80 | 76 | 73 | 75 | 78 |
| Wind speed (mph) | 5.1 | 6.0 | 7.6 | 9.0 | 10.7 | 13.1 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Ryotsu, about 9 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.