September weather forecastKomono, Japan

September

Weather in September

September, the first month of the autumn in Komono, is also a moderately hot month, with an average temperature ranging between max 26.8°C (80.2°F) and min 19.4°C (66.9°F).

Temperature

A modest decline in the average high-temperature is seen during September, decreasing from a hot 31.3°C (88.3°F) in August to a moderately hot 26.8°C (80.2°F). September's nights observe an average temperature of 19.4°C (66.9°F).

Humidity

In September, the average relative humidity in Komono is 79%.

Rainfall

In Komono, in September, during 13.9 rainfall days, 38mm (1.5") of precipitation is typically accumulated. Throughout the year, in Komono, there are 128.5 rainfall days, and 380mm (14.96") of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Komono.

Daylight

In Komono, the average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 05:26 and sunset at 18:21. On the last day of September, sunrise is at 05:48 and sunset at 17:39 JST.

Sunshine

In Komono, the average sunshine in September is 7.7h.

UV index

In Komono, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: In September, the UV index of 5 transforms into the following advice:
Be vigilant - A duty to shield skin and eyes from injury exists. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Frequently asked questions

The high-temperature in Komono during September is 26.8°C (80.2°F) and the low-temperature is 19.4°C (66.9°F). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 41°C (105.8°F).

In Komono, Japan, the average relative humidity in September is 79%.

In Komono, in September, during 13.9 rainfall days, 38mm (1.5") of precipitation is typically accumulated.

April through November are months without snowfall.

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

On the first day of September, sunrise is at 05:26 and sunset at 18:21. On the last day of the month, sunrise is at 05:48 and sunset at 17:39 JST.

In Komono, Japan, the average sunshine duration in September is 7.7h.

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Komono, Japan

  • Average high temperature in September: 26.8°C

The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is January (6.9°C).

  • Average low temperature in September: 19.4°C

The month with the highest average low temperature is August (23.4°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).

Average pressure in September
Komono, Japan

  • Average pressure in September: 1013.1mbar

The month with the highest atmospheric pressure is November (1019.3mbar).
The month with the lowest atmospheric pressure is June (1009mbar).

Average wind speed in September
Komono, Japan

  • Average wind speed in September: 7.6km/h

The windiest month (with the highest average wind speed) is January (10.3km/h).
The calmest month (with the lowest average wind speed) is July (6.6km/h).

Average humidity in September
Komono, Japan

  • Average humidity in September: 79%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is May (73%).

Average rainfall in September
Komono, Japan

  • Average rainfall in September: 38mm

The wettest month (with the highest rainfall) is July (74mm).
The driest months (with the least rainfall) are January and November (9mm).

Average rainfall days in September
Komono, Japan

  • Average rainfall days in September: 13.9 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (6 days).

Average snowfall in September
Komono, Japan

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (6mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Komono, Japan

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

  • Average daylight in September: 12h and 24min

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 54min).

  • Average sunshine in September: 7h and 42min

The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).

Average sunshine days in September
Komono, Japan

  • Average sunshine days in September: 13.6 days

The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is July (10.1 days).

Average UV index in September
Komono, Japan

  • Average UV index in September: 5

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in September
Komono, Japan

  • Average cloud cover in September: 46

The month with the most cloud cover is July (Cloud cover 54).
The month with the least cloud cover is November (Cloud cover 36).

Average visibility in September
Komono, Japan

  • Average visibility in September: 8km

The months with the highest visibility are January, February, March, November and December (9km).
The month with the lowest visibility is July (7km).