The weather in September in Sapporo

It's warm in September in Sapporo with an average temperature of 23°C. Temperatures this month range from a low of 21°C to a high of 26°C. At night, you can expect temperatures between 13°C and 20°C.

Looking for sun? September isn’t a good month to be in Sapporo. The temperature is nice, but there’s too much chance of rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Sapporo, Japan. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 33°C in 2020, Sapporo reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 14°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of 6°C to a highest value of 24°C.

Rainfall amount

In September, there is an average of 104 mm of precipitation, spread over 15 days. The wind speed is around 4 Bft, mostly coming from the Southwest.

Daily weather in September for Sapporo

Click on any day in September to get detailed info about the usual weather on that day in Sapporo. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  Sapporo New York
Average temperature 23°C 27°C
Max. temperature 26°C 31°C
Min. temperature 13°C -5°C
Total precipitation 104 mm 57 mm
Rainy days 15 days 9 days

Start of September

The month of September starts in Sapporo with warm temps, averaging around 26°C during the day and nights around 19°C.

Mid September

By mid-September, daytime temps drop to around 23°C, with nights around 16°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

End of September

By the end of September, the average daytime temperature in Sapporo is around 22°C, while nighttime temps are about 14°C. A shower might pop up, but overall, the weather will be dry and sunny.

Find affordable trips to Sapporo

UV index

The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

The typhoon season in Sapporo runs from June to November.

Check out the climate of Sapporo for all months and discover the best travel time

Curious about the weather in other parts of Japan? Check out the climate and weather for spots like Tokyo, Kyōto, Osaka, or explore other destinations in Japan.

Temperature charts

These charts show the average temperatures in September in Sapporo, Japan. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Sapporo

Temperature in September in Sapporo over the years

Precipitation charts

These charts show the average amount of precipitation in September in Sapporo, Japan. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in September in Sapporo

Total precipitation in September in Sapporo over the years

Daily UV index in September in Sapporo

This chart shows the average daily UV index in September in Sapporo, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in September in Sapporo

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Average weather in Sapporo by month

Click on a month below to see detailed weather info for Sapporo. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.