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Sapporo, Japan · Alpine mountain climate

Sapporo in September: go or not?

Good time. Sapporo in September gets 7.6/10.

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 43.06°N · 141.35°E
⚡ This month's verdict
Go for it
Sapporo · September
7.6
14–22°
Temperature
31%
Rain
5h
Sun
❄️ Alpine climate☀️ High-altitude UV🌦️ Changeable weather
Photo : Darth Liu via Unsplash
The month in detail

What to expect in September

Off-season for skiing Sapporo — lifts are closed. Consider hiking, mountain biking or summer activities at altitude.

September ranks 3 out of 12 months in Sapporo. Compared to August: −7°F daytime, 8 pts fewer rainy days.

This month's conditions

What it's like in September

UV index
5 · moderate
protect during midday hours
Feels like
comfortable
14°
Sea
23°C
pleasant for swimming
Daylight
12.3h of daylight
Air quality
good
AQI 27
Compare

Is September the right month?

The best month in Sapporo is July (7.8/10), 0.2 pt higher than September.

See July →See all 12 months →
Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🎟️ Activities & tours · Sapporo

GetYourGuide selection · free cancellation

See all →
Affiliate link · GetYourGuide
Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a mountain stay.

Country · Japan

🗣️LanguageJapanese
💶CurrencyYen japonais (¥)
🚗DrivingLeft-hand
🛡️Safety ⓘSafe · 2/5
💰Cost of living ⓘModerate · 3/5

🌡️ Climate

🌍Climate typeAlpine mountain climate
📈Climate trend ⓘ+3.13°F/decade
🔥Hottest monthAugust · 79°F
❄️Coolest monthJanuary · 28°F
🌧️Rainiest month ⓘAugust · 39%

🏔️ Mountain stay

⛰️Village altitude115 ft
🎿Ski area115 → 4167 ft
⛷️Ski seasonDec → May
🥾Hiking seasonJun → Sep
🧗High mountains ⓘGuide recommended
Location

Where is Sapporo ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Japan
Alpine mountain climate climate with a 7.8 → 0.8 gap between best and worst month. 10 years of ERA5 data to choose by project.
43.06°N · 141.35°E
Questions

Frequently asked questions

When is the best time to visit Sapporo?
It depends on the activity. For skiing: March (ski score 8.0/10). For hiking/suiner: March (8.0/10, 4.0°F).
Can you ski in Sapporo in winter?
Yes, it's peak ski season. Average ski score December–February: 7.2/10. Cold temperatures (-2°F max in January) and frequent snowfall.
Is it warm in Sapporo in suiner?
In March, temperatures average 4.0°F. Ideal for hiking and outdoor activities.
What is the wettest month in Sapporo?
November is the wettest month with November has the lowest climate score of the year.
Can you swim in Sapporo in September?
In September, the sea averages 74°F in Sapporo: pleasant for swimming. Swimming is pleasant without a wetsuit.
Do you need sun protection in Sapporo in September?
The average UV index reaches 5 in September in Sapporo (moderate), with about 12.3h of daylight. Protect during midday hours.