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Sapporo-shi (Sapporo)
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Weather in Sapporo-shi for September 2025

Your guide to Sapporo-shi weather in September - trends and predictions

    Temperatures

  • So far, September 2025 in Sapporo-shi is slightly warmer than the historical average by 0.8 °C.

  • The forecast for the next days in Sapporo-shi predicts temperatures to be around 20 °C, close to the historical average.

  • In general, the average temperature in Sapporo-shi at the beginning of September is 23.1 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 20.1 °C by the end of September.

    • Rain 🌧️

  • Sapporo-shi in September brings notable rainfall, with an average of 17 rainy days and a total precipitation of 119.9 mm.

    • More

  • Is September a good time to visit Sapporo-shi? check out the best time to travel to Sapporo-shi page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
13
Dry days
Average rainy days
17
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/13°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Sapporo-shi Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
23°
2
Cloudy
23°
3
Sunny
23°
4
Sunny
24°
5
Patchy rain possible
23°
6
Sunny
23°
7
Sunny
23°
8
Sunny
23°
9
Patchy rain possible
23°
10
Sunny
24°
11
Cloudy
24°
12
Overcast
23°
13
Patchy rain possible
22°
14
Patchy rain possible
20°
15
Sunny
21°
16
Overcast
21°
17
Overcast
21°
18
Patchy rain possible
20°
19
Patchy rain possible
20°
20
Moderate rain
19°
21
Patchy rain possible
19°
22
Patchy rain possible
20°
23
Patchy rain possible
21°
24
Patchy rain possible
21°
25
Patchy rain possible
19°
26
Patchy rain possible
21°
27
Partly cloudy
20°
28
Patchy rain possible
21°
29
Partly cloudy
21°
30
Moderate rain
18°

Temperatures trend during September in Sapporo-shi

See the weather trend as well as the moving average line

September weather in Sapporo-shi day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
 23° /15° 5 mm 5
2 Sept. Cloudy
Cloudy
 23° /15° 1.7 mm 5
3 Sept. Sunny
Sunny
 23° /13° 0.1 mm 6
4 Sept. Sunny
Sunny
 24° /13° 0.6 mm 6
5 Sept. Patchy rain possible
Patchy rain possible
 23° /14° 2.2 mm 5
6 Sept. Sunny
Sunny
 23° /15° 5.7 mm 5
7 Sept. Sunny
Sunny
 23° /13° 1 mm 6
8 Sept. Sunny
Sunny
 23° /13° 0 mm 6
9 Sept. Patchy rain possible
Patchy rain possible
 23° /15° 0.5 mm 5
10 Sept. Sunny
Sunny
 24° /14° 0.4 mm 6
11 Sept. Cloudy
Cloudy
 24° /14° 1 mm 5
12 Sept. Overcast
Overcast
 23° /13° 1.9 mm 5
13 Sept. Patchy rain possible
Patchy rain possible
 22° /13° 3.3 mm 5
14 Sept. Patchy rain possible
Patchy rain possible
 20° /11° 5.1 mm 5
15 Sept. Sunny
Sunny
 21° /11° 6.8 mm 5
16 Sept. Overcast
Overcast
 21° /11° 0.1 mm 5
17 Sept. Overcast
Overcast
 21° /14° 0.3 mm 5
18 Sept. Patchy rain possible
Patchy rain possible
 20° /12° 0.3 mm 1.1
19 Sept. Patchy rain possible
Patchy rain possible
 20° /11° 0.3 mm 1.1
20 Sept. Moderate rain
Moderate rain
 19° /10° 5.8 mm 1.2
21 Sept. Patchy rain possible
Patchy rain possible
 19° /12° 1.7 mm 1.1
22 Sept. Patchy rain possible
Patchy rain possible
 20° /10° 1.5 mm 3
23 Sept. Patchy rain possible
Patchy rain possible
 21° /11° 1.5 mm 3
24 Sept. Patchy rain possible
Patchy rain possible
 21° /11° 0.3 mm 3
25 Sept. Patchy rain possible
Patchy rain possible
 19° /13° 0.4 mm 4
26 Sept. Patchy rain possible
Patchy rain possible
 21° /13° 0.3 mm 4
27 Sept. Partly cloudy
Partly cloudy
 20° /11° 0 mm 4
28 Sept. Patchy rain possible
Patchy rain possible
 21° /11° 0.2 mm 4
29 Sept. Partly cloudy
Partly cloudy
 21° /11° 0.1 mm 5
30 Sept. Moderate rain
Moderate rain
 18° /14° 8.5 mm 4
Next
Important Notice
Our weather forecast for Sapporo-shi in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Sapporo-shi forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Sapporo-shi weather in September vs August vs October

Compare September weather in Sapporo-shi with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
AugustSeptemberOctober
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures25°/17°21°/13°13°/7°
Rainfall221 mm120 mm153 mm
Wind13.5 km/h14.3 km/h15.6 km/h
Humidity85%78%76%
Rainy days28 days17 days22 days
Dry days3 days13 days9 days

Planning a trip to Sapporo-shi? Discover the best time to visit

Sapporo-shi in September - FAQ

What are the expected maximum and minimum temperatures in Sapporo-shi during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Sapporo-shi during September?
Significant rainfall exceeding 119.9 mm is expected in Sapporo-shi during September, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Sapporo-shi during September?
The average wind speed in Sapporo-shi during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Sapporo-shi in September?

As you prepare for your trip to Sapporo-shi in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Sapporo-shi, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Warm Clothing: Sweaters, hoodies, long pants
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Scarves: To protect you from the cold wind
    • Gloves/Mittens: Essential for cold weather
    • Warm Hats: Warm hats for insulation in cold weather
    • Umbrellas/Raincoats: For rainy days

September rainfall patterns in Sapporo-shi

Explore the daily rainfall trends and prepare for Sapporo-shis September weather 💧

UV exposure in Sapporo-shi during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Sapporo-shi?

Get accurate weather forecasts for Sapporo-shi, located at latitude 43.067 and longitude 141.35. Stay updated with localized weather information tailored for Sapporo-shi.

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