September weather forecastShintona, Japan

September

Weather in September

The first month of the autumn, September, is still a warm month in Shintona, Japan, with an average temperature fluctuating between 24.1°C (75.4°F) and 18.5°C (65.3°F).

Temperature

September brings a slight decrease in temperature, down from a moderately hot 27.7°C (81.9°F) in August to a still warm 24.1°C (75.4°F). During September, Shintona records an average temperature of 18.5°C (65.3°F) at night.

Humidity

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

Rainfall

In Shintona, in September, it is raining for 13.6 days, with typically 92mm (3.62") of accumulated precipitation. In Shintona, during the entire year, the rain falls for 134.2 days and collects up to 724mm (28.5") of precipitation.

Snowfall

May through November are months without snowfall in Shintona.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of September, sunrise is at 05:05 and sunset at 18:05. On the last day of the month, sunrise is at 05:30 and sunset at 17:20 JST.

Sunshine

The average sunshine in September is 7.4h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Exercise prevention - Precautions against solar damage are endorsed. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.

Frequently asked questions

The high-temperature, in September, in Shintona, records 24.1°C (75.4°F), while the low-temperature is 18.5°C (65.3°F). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 32°C (89.6°F).

The average relative humidity in September is 79%.

In September, in Shintona, the rain falls for 13.6 days. Throughout September, 92mm (3.62") of precipitation is accumulated.

In Shintona, snow does not fall in May through November.

In September, the average day length is 12h and 27min.

On the first day of September, sunrise is at 05:05 and sunset at 18:05. On the last day of the month, sunrise is at 05:30 and sunset at 17:20 JST.

In Shintona, the average sunshine duration in September is 7.4h.

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

  • Average high temperature in September: 24.1°C

The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (3.8°C).

  • Average low temperature in September: 18.5°C

The month with the highest average low temperature is August (21.7°C).
The coldest month (with the lowest average low temperature) is February (-1°C).

Average pressure in September
Shintona, Japan

  • Average pressure in September: 1014mbar

The month with the highest atmospheric pressure is November (1018.6mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).

Average wind speed in September
Shintona, Japan

  • Average wind speed in September: 10.9km/h

The windiest month (with the highest average wind speed) is January (15.4km/h).
The calmest month (with the lowest average wind speed) is July (9km/h).

Average humidity in September
Shintona, Japan

  • Average humidity in September: 79%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is April (70%).

Average rainfall in September
Shintona, Japan

  • Average rainfall in September: 92mm

The wettest month (with the highest rainfall) is October (105mm).
The driest month (with the least rainfall) is February (23mm).

Average rainfall days in September
Shintona, Japan

  • Average rainfall days in September: 13.6 days

The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is February (7.3 days).

Average snowfall in September
Shintona, Japan

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (62mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Shintona, Japan

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).

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

  • Average daylight in September: 12h and 24min

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

  • Average sunshine in September: 7h and 24min

The month with the most sunshine is May (Average sunshine: 9h and 30min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).

Average sunshine days in September
Shintona, Japan

  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is May (21.3 days).
The month with the least sunshine days is July (13.4 days).

Average UV index in September
Shintona, Japan

  • Average UV index in September: 5

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).

Average cloud cover in September
Shintona, Japan

  • Average cloud cover in September: 42

The month with the most cloud cover is July (Cloud cover 48).
The months with the least cloud cover are May and November (Cloud cover 36).

Average visibility in September
Shintona, Japan

  • Average visibility in September: 9km

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