September weather forecastKashii, Japan

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Kashii, Japan, with temperature in the range of an average high of 26.2°C (79.2°F) and an average low of 20.6°C (69.1°F).

Temperature

As August transitions into September, Kashii sees a gentle drop in the average high-temperature, transitioning from a hot 30.3°C (86.5°F) to a warm 26.2°C (79.2°F). Throughout the nights in September, an average low-temperature of 20.6°C (69.1°F) is noted in Kashii.

Humidity

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

Rainfall

In September, in Kashii, the rain falls for 15.7 days. Throughout September, 85mm (3.35") of precipitation is accumulated. Throughout the year, in Kashii, there are 178 rainfall days, and 1063mm (41.85") of precipitation is accumulated.

Snowfall

In Kashii, snow does not fall in April through November.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 05:52 and sunset at 18:44. On the last day of September, sunrise is at 06:11 and sunset at 18:04 JST.

Sunshine

In Kashii, the average sunshine in September is 8.1h.

UV index

In Kashii, Japan, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Employ a wide-brim hat for potent defense against up to 50% of UV rays.

Frequently asked questions

An average high-temperature, in September, in Kashii, is 26.2°C (79.2°F) and the average low-temperature is 20.6°C (69.1°F). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is evaluated at 39°C (102.2°F).

The average relative humidity in September in Kashii, Japan, is 79%.

In Kashii, Japan, during September, the rain falls for 15.7 days and regularly aggregates up to 85mm (3.35") of precipitation.

In Kashii, snow does not fall in April through November.

The average day length in September in Kashii, Japan, is 12h and 23min.

On the first day of September, sunrise is at 05:52 and sunset at 18:44. On the last day of the month, sunrise is at 06:11 and sunset at 18:04 JST.

In Kashii, the average sunshine duration in September is 8.1h.

In September, the average daily maximum UV index in Kashii is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Kashii, Japan

  • Average high temperature in September: 26.2°C

The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (8.4°C).

  • Average low temperature in September: 20.6°C

The month with the highest average low temperature is August (24.1°C).
The coldest month (with the lowest average low temperature) is January (3.8°C).

Average pressure in September
Kashii, Japan

  • Average pressure in September: 1012.2mbar

The month with the highest atmospheric pressure is January (1022.1mbar).
The month with the lowest atmospheric pressure is June (1008.2mbar).

Average wind speed in September
Kashii, Japan

  • Average wind speed in September: 11.4km/h

The windiest month (with the highest average wind speed) is January (14.2km/h).
The calmest month (with the lowest average wind speed) is June (9.4km/h).

Average humidity in September
Kashii, Japan

  • Average humidity in September: 79%

The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are January, February and March (72%).

Average rainfall in September
Kashii, Japan

  • Average rainfall in September: 85mm

The wettest month (with the highest rainfall) is July (193mm).
The driest month (with the least rainfall) is January (52mm).

Average rainfall days in September
Kashii, Japan

  • Average rainfall days in September: 15.7 days

The month with the highest number of rainy days is July (20.9 days).
The month with the least rainy days is May (10.8 days).

Average snowfall in September
Kashii, Japan

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (22mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Kashii, Japan

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.9 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
Kashii, Japan

  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 8h and 6min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in September
Kashii, Japan

  • Average sunshine days in September: 13.1 days

The month with the most sunshine days is May (18.6 days).
The month with the least sunshine days is July (8.4 days).

Average UV index in September
Kashii, 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 and December (UV index 2).

Average cloud cover in September
Kashii, Japan

  • Average cloud cover in September: 40

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in September
Kashii, Japan

  • Average visibility in September: 10km

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