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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 79°F, while the coldest is January averaging around 21°F at night. Around 47 inches of precipitation falls each year, peaking in August (6.2 inches) and easing off in March (2.5 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)Hakodate climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 34 | 35 | 42 | 54 | 63 | 69 | 75 | 79 | 74 | 63 | 50 | 38 |
| Avg temp (°F) | 28 | 29 | 35 | 45 | 54 | 61 | 69 | 72 | 66 | 55 | 43 | 32 |
| Avg low (°F) | 21 | 22 | 28 | 37 | 46 | 55 | 63 | 66 | 58 | 46 | 35 | 26 |
| Precipitation (in) | 3.0 | 2.5 | 2.5 | 2.8 | 3.5 | 3.1 | 4.9 | 6.2 | 5.9 | 4.2 | 4.4 | 3.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 34 | 35 | 42 | 54 | 63 | 69 |
| Avg temp (°F) | 28 | 29 | 35 | 45 | 54 | 61 |
| Avg low (°F) | 21 | 22 | 28 | 37 | 46 | 55 |
| Precipitation (in) | 3.0 | 2.5 | 2.5 | 2.8 | 3.5 | 3.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 75 | 79 | 74 | 63 | 50 | 38 |
| Avg temp (°F) | 69 | 72 | 66 | 55 | 43 | 32 |
| Avg low (°F) | 63 | 66 | 58 | 46 | 35 | 26 |
| Precipitation (in) | 4.9 | 6.2 | 5.9 | 4.2 | 4.4 | 3.7 |
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.