Hakodate Bay Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Hakodate Bay year round climate
Spring (March–May): Average 38–56°F, mild climate, but early spring can still be chilly with occasional rain. Common activities: Cherry blossom viewing (depending on blooming conditions), Hakodate Mountain night view. Recommended clothing: Mid-layer warm clothing, jacket, comfortable walking shoes.
Summer (June–August): Average 64–76°F, warm and humid, with the most rainfall in August, so be mindful of rain. Common activities: Beach activities, outdoor activities, seafood tasting. Recommended clothing: Light and breathable clothing, rain gear, sunscreen.
Autumn (September–November): Average 44–69°F, comfortable and pleasant climate, but with a large temperature difference between day and night. Common activities: Autumn leaves viewing (depending on foliage conditions), Hakodate morning market experience. Recommended clothing: Layering, allowing for easy adjustment to temperature changes.
Winter (December–February): Average -2.0–-33.3°F, cold and dry, with relatively little snowfall. Common activities: Skiing (requires traveling to nearby areas), enjoying snow scenes, experiencing onsen (hot springs). Recommended clothing: Warm coat, hat, scarf, gloves, waterproof and warm boots.
Hakodate Bay climatological average
Annual average temperature: approx. 51.4°F / Annual rainfall: approx. 1172 mm / Summer humidity: 70%–80% / Rainiest month: August
Hakodate Bay monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
28.4°F
94
February
29.7°F
36
March
38.1°F
64.7
April
49.3°F
44.3
May
56.7°F
72
June
64.2°F
129.3
July
72.9°F
93.7
August
76.1°F
245
September
69.4°F
94.3
October
56.7°F
116.7
November
44.8°F
99.7
December
30.7°F
83
Hakodate Bay weather for the next seven days
12/8
Monday
Moderate rain
40.2°F/34.7°F
12/9
Tuesday
Moderate or heavy snow showers
35.1°F/31.2°F
12/10
Wednesday
Moderate or heavy snow showers
36.3°F/29.6°F
12/11
Thursday
Patchy moderate snow
32.4°F/28.9°F
12/12
Friday
Moderate or heavy snow showers
26.1°F/22.7°F
12/13
Saturday
Light snow showers
34.9°F/23.4°F
12/14
Sunday
Moderate rain
42.3°F/33.2°F
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