I was going from Sapporo to Hakodate, so I bought a five-day JR pass for 22,000 yen, which was quite expensive. But I was guaranteed a seat in the reserved area, so it was acceptable!
Buying tickets on your phone at the aquarium entrance was super convenient, saving you time queuing on-site. Just show your QR code to enter. The ocean view in the marine mammal park was beautiful, and the penguins and walruses were so cute and therapeutic.
The rest area was also very comfortable and convenient. A fantastic and well worth a visit!
I joined the trip in mid-September, guided by Xiao Liao RYOUIKI. She provided translation services in Chinese, English, and Japanese, and the timing for each attraction was perfect. Although lunch wasn't included, there were food options at the attractions. The weather was sunny when I went, and there were other flower fields to see (except for the lavender, which had already been harvested). Everything was very lucky! 👍
Anonymous user
Solo traveler
Best time to visit Otaru
Data source:Meteostat Last updated:2025-09
Weather in Otaru throughout the year
Spring (March–May): 36–55°F on average, the climate is cool, but there is more sunshine, with occasional showers. March is still chilly, April begins to warm up, and May is relatively mild. Common activities: flower viewing, walking along the canal. Recommended clothing: warm jacket, sweater, long pants.
Summer (June–August): 63–75°F on average, the climate is warm and humid, with occasional showers or thunderstorms. July and August are the hottest months, suitable for seaside activities. Common activities: seaside recreation, Otaru Canal boat tour, enjoying seafood. Recommended clothing: light and breathable clothing, short sleeves, light jacket.
Autumn (September–November): 42–67°F on average, the climate is comfortable and pleasant, but October has more rainfall. September has a mild climate, and November begins to cool down. Common activities: maple viewing, enjoying Japanese sake, visiting glass factories. Recommended clothing: light jacket, long-sleeved shirt, comfortable long pants.
Winter (December–February): -3.0–-35.1°F on average, the climate is cold and dry, with less snowfall, but occasional snowfalls. The temperature is low, and the wind is also stronger. Common activities: skiing (nearby areas), experiencing snow scenes, soaking in hot springs (nearby areas). Recommended clothing: thick warm jacket, hat, gloves, scarf.
Weather in Otaru
Annual average temperature: approx. 50.0°F / Annual rainfall: approx. 1402 mm / Summer humidity: 70%–80% / Rainiest month: October
Otaru weather by month
Month
Temperature (°F)
Rainfall (mm)
January
26.6°F
155.5
February
28°F
117.6
March
36.5°F
59.9
April
47.5°F
52.1
May
55.8°F
67.6
June
63.5°F
83
July
72.3°F
124.4
August
75.7°F
140
September
67.6°F
120.8
October
55°F
178.9
November
42.8°F
178
December
28.9°F
124.7
7-day weather forecast for Otaru
11/16
Monday
Light drizzle
40.5°F/31.4°F
11/17
Tuesday
Light snow
38.4°F/30.4°F
11/18
Wednesday
Light drizzle
43.9°F/33.2°F
11/19
Thursday
Heavy snow
44.1°F/28.2°F
11/20
Friday
Heavy snow
28.4°F/25°F
11/21
Saturday
Heavy snow
30.7°F/25.9°F
11/22
Sunday
Moderate or heavy snow showers
31.4°F/27°F
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