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Hakodate Bay

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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 3.4–13.7°C, 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 17.9–24.5°C, 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 7.1–20.8°C, 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–-0.7°C, 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. 10.8°C / Annual rainfall: approx. 1172 mm / Summer humidity: 70%–80% / Rainiest month: August

Hakodate Bay monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
-2°C
94
February
-1.3°C
36
March
3.4°C
64.7
April
9.6°C
44.3
May
13.7°C
72
June
17.9°C
129.3
July
22.7°C
93.7
August
24.5°C
245
September
20.8°C
94.3
October
13.7°C
116.7
November
7.1°C
99.7
December
-0.7°C
83

Hakodate Bay weather for the next seven days

6/20
Saturday
Patchy rain nearby
18.7°C/15.6°C
6/21
Sunday
Moderate rain
14.5°C/13.6°C
6/22
Monday
Heavy rain
13.3°C/12°C
6/23
Tuesday
Patchy rain nearby
13.3°C/11.2°C
6/24
Wednesday
Patchy rain nearby
14.7°C/10.8°C
6/25
Thursday
Sunny
18.6°C/10.6°C
6/26
Friday
Overcast
19.1°C/13.9°C