Konan, Japan climate
Cfa Humid subtropical
Konan has a seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 87°F, while the coldest is January averaging around 26°F at night. Around 61 inches of precipitation falls each year, peaking in June (8.1 inches) and easing off in January (2.4 inches).
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Summers
Warm
Highs near 87°F in August.
❄️
Winters
Cold
Lows near 26°F in January.
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Rain
Very wet
About 61 in of rain a year.
Wettest in June
⛅
Sky & trend
Often cloudy
Cloudy skies 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)Konan climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 44 | 46 | 53 | 64 | 72 | 77 | 85 | 87 | 79 | 69 | 59 | 49 |
| Avg temp (°F) | 35 | 36 | 42 | 51 | 60 | 68 | 75 | 76 | 69 | 58 | 47 | 38 |
| Avg low (°F) | 26 | 26 | 31 | 38 | 49 | 59 | 67 | 68 | 61 | 49 | 37 | 29 |
| Precipitation (in) | 2.4 | 2.7 | 4.5 | 4.5 | 5.6 | 8.1 | 8.0 | 6.3 | 7.4 | 6.1 | 3.0 | 2.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 44 | 46 | 53 | 64 | 72 | 77 |
| Avg temp (°F) | 35 | 36 | 42 | 51 | 60 | 68 |
| Avg low (°F) | 26 | 26 | 31 | 38 | 49 | 59 |
| Precipitation (in) | 2.4 | 2.7 | 4.5 | 4.5 | 5.6 | 8.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 85 | 87 | 79 | 69 | 59 | 49 |
| Avg temp (°F) | 75 | 76 | 69 | 58 | 47 | 38 |
| Avg low (°F) | 67 | 68 | 61 | 49 | 37 | 29 |
| Precipitation (in) | 8.0 | 6.3 | 7.4 | 6.1 | 3.0 | 2.4 |
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 (%) | 87 | 84 | 82 | 81 | 82 | 85 | 87 | 86 | 87 | 86 | 86 | 87 |
| Wind speed (mph) | 6.4 | 6.6 | 6.8 | 6.3 | 5.6 | 5.0 | 4.7 | 4.6 | 5.0 | 5.0 | 5.1 | 5.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 66 | 67 | 67 | 65 | 70 | 81 |
| Relative humidity (%) | 87 | 84 | 82 | 81 | 82 | 85 |
| Wind speed (mph) | 6.4 | 6.6 | 6.8 | 6.3 | 5.6 | 5.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 63 | 70 | 66 | 63 | 63 |
| Relative humidity (%) | 87 | 86 | 87 | 86 | 86 | 87 |
| Wind speed (mph) | 4.7 | 4.6 | 5.0 | 5.0 | 5.1 | 5.9 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Shigaraki, about 10 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.