Spring (March–May): 3.4–13.7°C on average, the climate gradually warms, but there are still showers. Cherry blossoms may bloom in March–April. Common activities: Cherry blossom viewing (depending on cherry blossom blooming conditions), visiting Goryokaku Park. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Summer (June–August): 17.9–24.5°C on average, warm and humid climate. August has the most rainfall, and heatstroke and rain prevention measures are necessary. Common activities: Visiting Goryokaku, enjoying the night view from Mount Hakodate. Recommended clothing: Breathable short-sleeved clothing, light pants, rain gear.
Autumn (September–November): 7.1–20.8°C on average, pleasant climate, but the temperature difference between morning and evening is large. Common activities: Autumn leaves viewing (depending on the autumn leaves coloring conditions), strolling around Goryokaku. Recommended clothing: Light jacket or sweater, long pants.
Winter (December–February): -2.0–-0.7°C on average, cold climate, high probability of snowfall, keep warm. Common activities: Experiencing winter activities (depending on the conditions), visiting indoor attractions. Recommended clothing: Heavy coat, warm clothing, hat, gloves, scarf.
Goryokaku climatological average
Annual average temperature: approx. 10.8°C / Annual rainfall: approx. 1172 mm / Summer humidity: 70%–80% / Rainiest month: August
Goryokaku 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
Goryokaku weather for the next seven days
12/30
Tuesday
Patchy rain nearby
4.8°C/-0.8°C
12/31
Wednesday
Moderate or heavy snow showers
-1.1°C/-5.5°C
1/1
Thursday
Blizzard
-4.4°C/-6.4°C
1/2
Friday
Light freezing rain
0.5°C/-4.9°C
1/3
Saturday
Moderate or heavy snow showers
1.2°C/-3.9°C
1/4
Sunday
Light freezing rain
1.6°C/-2.5°C
1/5
Monday
Light snow showers
1.1°C/-3.3°C
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