September weather forecast and climate
Sapporo, Japan

Weather in September

The first month of the autumn, September, is also an agreeable month in Sapporo, Japan, with average temperature fluctuating between 12.5°C (54.5°F) and 20.2°C (68.4°F).

Temperature

In Sapporo, the average high-temperature in September marginally drops, from a moderately hot 24.2°C (75.6°F) in August, to a pleasant 20.2°C (68.4°F). In September, in Sapporo, the average low-temperature is 12.5°C (54.5°F).

Humidity

In September, the average relative humidity is 83%.

Rainfall

In Sapporo, Japan,, it is raining for 17 days, with typically 78mm (3.07") of accumulated precipitation. Throughout the year, in Sapporo, Japan, there are 167 rainfall days, and 843mm (33.19") of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Sapporo, Japan.

Daylight

In Sapporo, Japan, the average length of the day is 12.5h.

Sunshine

The average sunshine in Sapporo, Japan, is 7.9h.

UV index

The average daily maximum UV index in Sapporo, Japan, is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in September in Sapporo?

In Sapporo, the average relative humidity in September is 83%.

How many days does it rain in September in Sapporo?

In Sapporo, during September, the rain falls for 17 days and regularly aggregates up to 78mm (3.07") of precipitation.

When it does not snow in Sapporo?

May through September are months without snowfall in Sapporo, Japan.

Does it snow in Sapporo in September?

In Sapporo, Japan, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Sapporo have in September?

In Sapporo, Japan, the average length of the day in September is 12.5h.

How long on average sun shines in September in Sapporo?

The average sunshine in September in Sapporo is 7.9h.

What is the UV index intensity in September in Sapporo?

In Sapporo, Japan, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in September
Sapporo, Japan

Average temperature in September - Sapporo, Japan
  • Average high temperature in September: 20.2°C

The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is January (-3.7°C).

  • Average low temperature in September: 12.5°C

The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is February (-10°C).

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Average pressure in September
Sapporo, Japan

Average pressure in September - Sapporo, Japan
  • Average pressure in September: 1013.5mbar

The month with the highest atmospheric pressure is November (1016.2mbar).
The month with the lowest atmospheric pressure is July (1008.6mbar).

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Average wind speed in September
Sapporo, Japan

Average wind speed in September - Sapporo, Japan
  • Average wind speed in September: 9.7km/h

The windiest months (with the highest average wind speed) are April and December (12.8km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).

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Average humidity in September
Sapporo, Japan

Average humidity in September - Sapporo, Japan
  • Average humidity in September: 83%

The month with the highest relative humidity is January (90%).
Months with the lowest relative humidity are April and May (77%).

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Average rainfall in September
Sapporo, Japan

Average rainfall in September - Sapporo, Japan
  • Average rainfall in September: 78mm

The wettest month (with the highest rainfall) is August (112mm).
The driest month (with the least rainfall) is April (51mm).

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Average rainfall days in September
Sapporo, Japan

Average rainfall days in September - Sapporo, Japan
  • Average rainfall days in September: 17 days

The month with the highest number of rainy days is August (19.5 days).
The month with the least rainy days is February (5.3 days).

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Average snowfall in September
Sapporo, Japan

Average snowfall in September - Sapporo, Japan
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (430mm).
Months with the least snowfall are May, June, July, August and September (0mm).

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Average snowfall days in September
Sapporo, Japan

Average snowfall days in September - Sapporo, Japan
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (28 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Sapporo, Japan

Average daylight in September / Average sunshine in September - Sapporo, Japan
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in September: 7.9h

The month with the most sunshine is August (Average sunshine: 8.8h).
The month with the least sunshine is January (Average sunshine: 2.2h).

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Average sunshine days in September
Sapporo, Japan

Average sunshine days in September - Sapporo, Japan
  • Average sunshine days in September: 9 days

The month with the most sunshine days is May (13.4 days).
The month with the least sunshine days is December (2.7 days).

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Average UV index in September
Sapporo, Japan

Average UV index in September - Sapporo, Japan
  • Average UV index in September: 4

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February, March, November and December (UV index 1).

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Average cloud cover in September
Sapporo, Japan

Average cloud cover in September - Sapporo, Japan
  • Average cloud cover in September: 41

The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is September (Cloud cover 41).

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Average visibility in September
Sapporo, Japan

Average visibility in September - Sapporo, Japan
  • Average visibility in September: 8km

Months with the highest visibility are April, May and October (9km).
The month with the lowest visibility is January (6km).

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