The tour guide and driver were both excellent. The weather was beautiful on May 21st, 2015; the flowers were in full bloom, and the ice at the ranch was delicious. Being able to have a day with a tour group on a free and easy trip, without having to find my own way or hitchhike, was a real treat. Every scene was beautiful; for places where I wanted to spend more time, I can plan a separate trip for myself.
Spring (March–May): 32–53°F, the climate transitions from cold to mild. March still has a possibility of snowfall; snow melts starting in April, and temperatures rise in May. Common activities: end of ski season (March), flower viewing, outdoor hiking. Recommended clothing: warm coat, waterproof jacket and pants, fleece clothing, warm hat and socks (March); spring coat, long-sleeved shirts and pants (April–May).
Summer (June–August): 61–72°F, warm and humid climate with higher rainfall, especially in August. Common activities: mountain hiking, stream activities, camping, golf. Recommended clothing: lightweight and breathable clothing, rain gear, sun protection clothing.
Autumn (September–November): 51–64°F, cool climate with higher rainfall, especially in October and November. Common activities: autumn leaves viewing, hiking, cycling. Recommended clothing: light jacket, long-sleeved clothing, comfortable shoes.
Winter (December–February): -5.6–-39.2°F, cold climate with heavy snowfall; ideal for skiing. Common activities: skiing, snowboarding, snowshoeing. Recommended clothing: heavy warm coat, waterproof jacket and pants, warm hat and socks, waterproof gloves.
Niseko climatological average
Annual average temperature: approx. 46.0°F / Annual rainfall: approx. 1730 mm / Summer humidity: 70%–80% / Rainiest month: December
Niseko monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
21.9°F
195.1
February
24.3°F
122.3
March
32.7°F
73.6
April
44.4°F
45.2
May
53.6°F
81.6
June
61.9°F
106.3
July
70.7°F
99.4
August
72.7°F
199.7
September
64.2°F
175.3
October
51.1°F
182.1
November
38.5°F
200.4
December
24.8°F
249.5
Niseko weather for the next seven days
6/18
Thursday
Sunny
79.4°F/52.9°F
6/19
Friday
Moderate rain
69.5°F/56°F
6/20
Saturday
Patchy rain nearby
71.6°F/51°F
6/21
Sunday
Partly Cloudy
66.6°F/49.7°F
6/22
Monday
Patchy rain nearby
66°F/49.2°F
6/23
Tuesday
Patchy rain nearby
62.1°F/45.2°F
6/24
Wednesday
Sunny
70.1°F/42.8°F
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