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Hakodate, Japan climate
Cfa Humid subtropical
Hakodate has a seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 26°C, while the coldest is January averaging around −6°C at night. Around 1188 mm of precipitation falls each year, peaking in August (156 mm) and easing off in March (64 mm).
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)Hakodate climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 1 | 2 | 6 | 12 | 17 | 20 | 24 | 26 | 23 | 17 | 10 | 3 |
| Avg temp (°C) | −2 | −2 | 2 | 7 | 12 | 16 | 20 | 22 | 19 | 13 | 6 | 0 |
| Avg low (°C) | −6 | −6 | −2 | 3 | 8 | 13 | 17 | 19 | 15 | 8 | 2 | −4 |
| Precipitation (mm) | 77 | 64 | 64 | 72 | 89 | 80 | 124 | 156 | 150 | 106 | 111 | 95 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 1 | 2 | 6 | 12 | 17 | 20 |
| Avg temp (°C) | −2 | −2 | 2 | 7 | 12 | 16 |
| Avg low (°C) | −6 | −6 | −2 | 3 | 8 | 13 |
| Precipitation (mm) | 77 | 64 | 64 | 72 | 89 | 80 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 26 | 23 | 17 | 10 | 3 |
| Avg temp (°C) | 20 | 22 | 19 | 13 | 6 | 0 |
| Avg low (°C) | 17 | 19 | 15 | 8 | 2 | −4 |
| Precipitation (mm) | 124 | 156 | 150 | 106 | 111 | 95 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 91 | 86 | 77 | 68 | 69 | 73 | 78 | 72 | 70 | 71 | 82 | 89 |
| Relative humidity (%) | 87 | 85 | 80 | 81 | 83 | 85 | 87 | 86 | 83 | 80 | 82 | 86 |
| Wind speed (mph) | 9.1 | 9.6 | 8.1 | 5.5 | 3.7 | 3.0 | 3.0 | 3.4 | 4.5 | 5.4 | 6.5 | 8.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 91 | 86 | 77 | 68 | 69 | 73 |
| Relative humidity (%) | 87 | 85 | 80 | 81 | 83 | 85 |
| Wind speed (mph) | 9.1 | 9.6 | 8.1 | 5.5 | 3.7 | 3.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 78 | 72 | 70 | 71 | 82 | 89 |
| Relative humidity (%) | 87 | 86 | 83 | 80 | 82 | 86 |
| Wind speed (mph) | 3.0 | 3.4 | 4.5 | 5.4 | 6.5 | 8.1 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Hakodate, about 5 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.