September 23 is generally a great time to visit Sapporo. While there is a slight chance of rain (26%), showers are usually brief. Expect comfortable 20°C weather. As it's peak season for Sapporo, we recommend booking your stay well in advance to secure the best rates. Note: September 23 is Autumnal Equinox Day in Sapporo, so expect special events, closures, and festive atmosphere.
View the full calendar
Essential Travel Info for Sapporo
Currency
JPY
¥ Japanese yen
Language
Japanese
Driving
Left side
Connect
Traveler SIM cards can be bought in BIC ...
Safety
Very High Safety
GPI: 1.336
Sapporo Weather Forecast for September 23
"Mild & Comfortable. Expect average highs of 19.6°C. 26% chance of rain."
What to Wear in Sapporo in September
Based on historical data for September 23, Sapporo typically experiences temperatures between 11.7°C and 19.6°C. We recommend packing light jacket, long pants to stay comfortable. With a 26% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Sapporo
Smart Suitcase
- Light Jacket
- Long Pants
Average High
19.6°C
Daytime Peak
Average Low
11.7°C
Nighttime Low
Feels Like
19.6°C
🌤️ Feels accurate
Rain Chance
26%
Avg 2.3mm if it rains
Cloud Cover
60%
Overcast
Pressure
1015.9 hPa
Medium volatility
Sapporo Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 32 min to burn
Type III-IV
🟡 48 min to burn
Type V-VI
🟢 80 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
15.9°C
Pleasant
Heat Stress
Low
No heat warning
🙂 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Holiday
Autumnal Equinox Day
Flight Traffic
High
87/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~213
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Sapporo
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:23
☀️ Noon
11:28
🌇 Sunset
17:33
⏱️ Daylight
12h 10m
Wind Speed
19.1 km/h
Gentle breeze
Sunshine
8.1 hrs
Direct Sun (Cloud-free)
Humidity
79%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Sapporo
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Sapporo
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Active seismic zone. Multiple earthquakes per year.
Travel Alert: This region has elevated natural risks. We recommend registering with your embassy and keeping emergency numbers handy.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Sapporo on September 23 averages 19.6°C with a 26% precipitation probability. Wedding/Outdoor Event Score: 94/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Sapporo Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (September 23) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Sapporo Worth Visiting on September 23?
Planning a trip to Sapporo on September 23? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 19.6°C with a 26% historical precipitation risk.
🎉 Local Event: The date coincides with Autumnal Equinox Day, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 213 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 8 vaccinations are recommended for Japan, including COVID-19.
📊 Historical Extremes: The hottest September 23 recorded in the last 30 years saw temperatures hit 24.3°C in 2021, while the coldest dropped to 8.5°C in 2025.