September weather forecast
Toranomon, Japan

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Weather in September

The first month of the autumn, September, is still a warm month in Toranomon, Japan, with an average temperature fluctuating between 26.9°C (80.4°F) and 21.5°C (70.7°F).

Temperature

A mild shift in the average high-temperature occurs in September, reducing from a hot 30.6°C (87.1°F) in August to a moderately hot 26.9°C (80.4°F). In the month of September, Toranomon's average low-temperature falls to an agreeable 21.5°C (70.7°F).

Humidity

The average relative humidity in September in Toranomon, Japan, is 74%.

Rainfall

The month with the most rainfall in Toranomon is September, when the rain falls for 12.9 days and typically aggregates up to 54mm (2.13") of precipitation.

Snowfall

In Toranomon, snow does not fall in March through December.

Daylight

The average length of the day in September is 12h and 25min.
On the first day of September in Toranomon, sunrise is at 05:13 and sunset at 18:08. On the last day of the month, sunrise is at 05:35 and sunset at 17:26 JST.

Sunshine

The average sunshine in September is 7.8h.

UV index

In Toranomon, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A maximum UV index of 6 in September translates into the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
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Frequently asked questions

What is the temperature in September in Toranomon?

In Toranomon, 26.9°C (80.4°F) is the average high-temperature and 21.5°C (70.7°F) is the average low-temperature during September. In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 38°C (100.4°F).

What is the average humidity in September in Toranomon?

In Toranomon, Japan, the average relative humidity in September is 74%.

What is the rainiest month in Toranomon?

The month with the most rainfall is September, when the rain falls for 12.9 days and typically aggregates up to 54mm (2.13") of precipitation.

How much does it rain in Toranomon in September?

In September, in Toranomon, the rain falls for 12.9 days. Throughout September, 54mm (2.13") of precipitation is accumulated.

When it does not snow in Toranomon?

In Toranomon, Japan, snow does not fall in March through December.

What is the average length of the day in September in Toranomon?

In September, the average day length in Toranomon is 12h and 25min.

When are sunrise and sunset in September in Toranomon?

In September, on the first day of the month, sunrise is at 05:13 and sunset at 18:08. On the last day of the month, in Toranomon, Japan, sunrise is at 05:35 and sunset at 17:26 JST.

How many hours of sunshine does Toranomon have in September?

In Toranomon, Japan, the average sunshine duration in September is 7.8h.

How high is the UV index in September in Toranomon?

In September, the average daily maximum UV index in Toranomon is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in September
Toranomon, Japan

Average temperature in September - Toranomon, Japan
  • Average high temperature in September: 26.9°C

The warmest month (with the highest average high temperature) is August (30.6°C).
The month with the lowest average high temperature is January (8.8°C).

  • Average low temperature in September: 21.5°C

The month with the highest average low temperature is August (24.9°C).
The coldest month (with the lowest average low temperature) is January (3°C).

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Average pressure in September
Toranomon, Japan

Average pressure in September - Toranomon, Japan
  • Average pressure in September: 1013.4mbar

The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

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Average wind speed in September
Toranomon, Japan

Average wind speed in September - Toranomon, Japan
  • Average wind speed in September: 13km/h

The windiest month (with the highest average wind speed) is April (15.6km/h).
The calmest month (with the lowest average wind speed) is November (12.3km/h).

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Average humidity in September
Toranomon, Japan

Average humidity in September - Toranomon, Japan
  • Average humidity in September: 74%

The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is January (60%).

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Average rainfall in September
Toranomon, Japan

Average rainfall in September - Toranomon, Japan
  • Average rainfall in September: 54mm

The wettest month (with the highest rainfall) is September (54mm).
The driest month (with the least rainfall) is February (10mm).

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Average rainfall days in September
Toranomon, Japan

Average rainfall days in September - Toranomon, Japan
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is January (4.5 days).

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Average snowfall in September
Toranomon, Japan

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

The month with the highest snowfall is February (4mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).

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Average snowfall days in September
Toranomon, Japan

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

The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in September / Average sunshine in September - Toranomon, Japan
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 7h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).

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Average sunshine days in September
Toranomon, Japan

Average sunshine days in September - Toranomon, Japan
  • Average sunshine days in September: 13.8 days

The month with the most sunshine days is January (25.4 days).
The month with the least sunshine days is June (11.5 days).

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Average UV index in September
Toranomon, Japan

Average UV index in September - Toranomon, Japan
  • Average UV index in September: 6

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).

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Average cloud cover in September
Toranomon, Japan

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

The months with the most cloud cover are June and October (Cloud cover 44).
The month with the least cloud cover is January (Cloud cover 28).

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Average visibility in September
Toranomon, Japan

Average visibility in September - Toranomon, Japan
  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).

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Toranomon, Japan

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